List of minerals approved by IMA (C)

This list includes those recognised minerals beginning with the letter C. The International Mineralogical Association is the international group that recognises new minerals and new mineral names, however minerals discovered before 1959 did not go through the official naming procedure, although some minerals published previously have been either confirmed or discredited since that date. This list contains a mixture of mineral names that have been approved since 1959 and those mineral names believed to still refer to valid mineral species (these are called "grandfathered" species).

The list is divided into groups:

• Introduction • (Main synonyms)
• A • B • C • D • E • F • G • H • I • J • K • L • M • N • O • P–Q • R • S • T • U–V • W–X • Y–Z

The data was exported from mindat.org on 29 April 2005; updated up to 'IMA2019'.

The minerals are sorted by name, followed by the structural group (rruff.info/ima and ima-cnmnc by mineralienatlas.de, mainly) or chemical class (mindat.org and basics), the year of publication (if it's before of an IMA approval procedure), the IMA approval and the Nickel–Strunz code. The first link is to mindat.org, the second link is to webmineral.com, and the third is to the Handbook of Mineralogy (Mineralogical Society of America).

• Abbreviations:
  • ^D – discredited (IMA/CNMNC status).
  • ^Q – questionable/ doubtful (IMA/CNMNC, mindat.org or mineralienatlas.de status).
  • ^N – published without approval of the IMA/CNMNC, or just not an IMA approved mineral but with some acceptance in the scientific community nowadays.
  • ^I – intermediate member of a solid-solution series.
  • ^H – hypothetical mineral (synthetic, anthropogenic, suspended approval procedure, etc.)
    • ^ch – incomplete description, hypothetical solid solution end member.
  • Rd – redefinition of ...
  • "s.p." – special procedure.
  • group – a name used to designate a group of species, sometimes only a mineral group name.
  • no – no link available.
  • IUPAC – chemical name.
  • Y: NNNN – year of publication.
  • Y: old – known before publications were available.

C

Ca

Cacoxenite, Minas de Horcajo, Castile-La Mancha, Spain

Calcite colored red by inclusions of hematite, 14 × 10 × 4 cm, Tsumeb, Namibia

Clear calcite with dendritic mottramite, 5 × 4.5 × 3 cm, Tsumeb, Namibia

Calcite, 13.4 × 10.5 × 6.5 cm, Iraí, Rio Grande do Sul, Brazil

Cobaltoan calcite, Bou Azzer District, Tazenakht, Ouarzazate Province, Souss-Massa-Draâ Region, Morocco

Manganoan calcite stepped crystals with a light pink blush from the manganese content, from Nikolaevskiy Mine, Primorskiy Kray, Far-Eastern Region, Russia

Twinned scalenohedral calcite, 4.5 × 2.0 × 1.3 cm, Rodeo (municipality), Durango, Mexico

"Sand calcites" (calcites heavily included with desert sand) from Rattlesnake Butte, Jackson County, South Dakota, USA

Carletonite, 1.6 × 1.6 × 0.9 cm, Poudrette quarry, Mont Saint-Hilaire, Montérégie, Quebec, Canada

Cassiterite crystal

Stalactitic-botryoidal, banded, wood-tin cassiterite, 5.0 × 4.9 × 3.3 cm, Durango, Mexico

Catapleiite from Poudrette quarry, Mont Saint-Hilaire, La Vallée-du-Richelieu RCM, Montérégie, Québec, Canada

Cavansite ball on stilbite, 4 × 2.8 × 2.6 cm, Pune District, Maharashtra, India

Sky blue, prismatic crystals of celestine

Cerussite and dioptase, 5 × 3.5 × 3.5 cm, Tsumeb, Namibia

Pastel salmon-pink chabazite upon pearlescent heulandite crystals

Charoite, 8 cm tall, Murunskii Massif, Chara River, Yakutia, Russia

Chiastolite

Gemmy red Chondrodite with magnetite, 2.8 × 2.6 × 2.1 cm, Tilly Foster mine, Brewster, New York, US

Christelite 3.2 × 2.8 × 2.0 cm, San Francisco Mine, Sierra Gorda District, Tocopilla Province, Antofagasta Region, Chile

Chrysocolla and malachite, 7.5 × 4.5 × 3 cm, Mashamba West Mine, Kolwezi, Lualaba District, Democratic Republic of the Congo

Cinnabar, 1 × .7 × 0.7 cm, Antelope Springs District, Pershing County, Nevada, US

Conichalcite (dark green) and austinite, Gold Hill Mine, Tooele County, Utah

Connellite from Perran Great St George Mine, Perranzabuloe, St Agnes District, Cornwall, England

Copper crystal, 5.5 × 1.5 × 0.3 cm, Itauz Mine, Zhezqazghan Oblysy, Kazakhstan

Cornetite, 5.7 × 3.9 × 3.9 cm, from the type locality, Star of the Congo Mine, Lubumbashi, Haut-Katanga District, Democratic Republic of the Congo

Crystals of corundum (var. ruby) and crystals of zoisite (var. anyolite), from Mundarara Mine, Longido, Mt Kilimanjaro, Kilimanjaro Region, Tanzania

Creedite with gearksutite

Crocoite, from the Adelaide Mine, Dundas mineral field, Zeehan District, Tasmania Australia

Cumengeite, Amelia Mine, Santa Rosalía, Baja California Sur, Mexico; larger specimen: 1.4 x 1.4 x 1.4 cm

Acicular cuprosklodowskite and darker green, tabular metatorbernite, 6.5 × 4.5 × 4 cm, Kolwezi, Lualaba District, Democratic Republic of the Congo

Powder-blue cyanotrichite needles lining vugs in green malachite matrix

1. Cabalzarite (tsumcorite: IMA1997-012) 8.CG.15 [no]
   (IUPAC: calcium dimagnesium diarsenate dihydrate)
2. Cabriite (alloy: IMA1981-057) 1.AG.30
   (IUPAC: dipalladium copper stannide)
3. Cabvinite (IMA2016-011) 3.D0. [no] [no]
   (IUPAC: dithorium hydro heptafluoride trihydrate)
4. Cacoxenite (Y: 1826) 8.DC.40
5. Cadmium (IMA1980-086a) 1.AB.05
6. Cadmoindite (spinel, linnaeite: IMA2003-042) 2.DA.05
   (IUPAC: cadmium diindium tetrasulfide)
7. Cadmoselite (wurtzite: 1957) 2.CB.45
   (IUPAC: cadmium selenide)
8. Cadwaladerite^Q (Y: 1941) 3.BD.05
9. Caesiumpharmacosiderite (pharmacosiderite: IMA2013-096) 8.CJ. [no] [no]
   (IUPAC: caesium tetrairon [tetrahydro triarsenate] tetrahydrate)
10. Cafarsite (IMA1965-036) 4.JC.05
11. Cafetite (IMA1962 s.p., 1959) 4.FL.75
    (IUPAC: calcium dititanium pentaoxide monohydrate)
12. Cahnite (zircon: 1927) 6.AC.70
    (IUPAC: dicalcium tetrahydro boro-arsenate)
13. Cairncrossite (gyrolite: IMA2013-012) 9.EE. [no] [no]
14. Calamaite (IMA2016-036) 7.0 [no] [no]
    (IUPAC: disodium titanium oxodisulfate dihydrate)
15. Calaverite (calaverite: 1868) 2.EA.10
    (IUPAC: gold ditelluride)
16. Calciborite (Y: 1956) 6.BC.10
    (IUPAC: calcium tetraoxo diborate)
17. Calcinaksite (litidionite: IMA2013-081) 9.D?. [no] [no]
    (IUPAC: potassium sodium calcium (decaoxo tetrasilicate) monohydrate)
18. Calcioancylite 5.DC.05
    1. Calcioancylite-(Ce) (ancylite: IMA1987 s.p., 1923) 5.DC.05
    2. Calcioancylite-(Nd) (ancylite: IMA1989-008) 5.DC.05
       (Nd_2.8Ca_1.2(CO₃)₄(OH)₃·H₂O)
19. Calcioandyrobertsite (andyrobertsite: IMA1997-023) 8.DH.50 [no]
    (IUPAC: potassium calcium pentacopper tetrarsenate dihydroxoarsenate dihydrate)
20. Calcioaravaipaite (aravaipaite: IMA1994-018) 3.DC.37
    (IUPAC: lead dicalcium alumino-nonafluoride)
21. Calcioburbankite (burbankite: IMA1993-001) 5.AC.30
22. Calciocatapleiite (catapleiite: IMA2007 s.p., 1964) 9.CA.15
    (IUPAC: calcium zirconium nonaoxy trisilicate dihydrate)
23. Calciocopiapite (copiapite: IMA1967 s.p., 1960) 7.DB.35
    (IUPAC: calcium tetrairon(III) dihydro hexasulfate icosahydrate)
24. Calciodelrioite (delrioite: IMA2012-031) 4.HG. [no]
    (IUPAC: calcium di(vanadate(V)) tetrahydrate)
25. Calcioferrite (calcioferrite: 1858) 8.DH.25
    (IUPAC: tetracalcium magnesium tetrairon(III) tetrahydro hexaphosphate dodecahydrate)
26. Calciohilairite (IMA1984-023) 9.DM.10
    (IUPAC: calcium zirconium nonaoxy trisilicate trihydrate)
27. Calciojohillerite (alluaudite: IMA2016-068) 8.0 [no] [no]
    (IUPAC: sodium calcium magnesium dimagnesium triarsenate)
28. Calciolangbeinite (langbeinite: IMA2011-067) 7.AD. [no]
    (IUPAC: dipotassium dicalcium trisulfate)
29. Calciomurmanite (seidozerite, murmanite: IMA2014-103) 9.B?. [no] [no]
30. Calcio-olivine (olivine: IMA2007-B) 9.AD.10 [no]
    (IUPAC: dicalcium (tetraoxysilicate))
31. Calciopetersite (mixite: IMA2001-004) 8.DL.15
    (IUPAC: calcium hexacopper hexahydro diphosphate hydroxophosphate trihydrate)
32. Calciosamarskite (samarskite: 1928) 4.DB.25 [no]
33. Calciotantite (IMA1981-039) 4.DJ.05
    (IUPAC: calcium tetratantalum undecaoxide)
34. Calciouranoite (wölsendorfite: IMA1973-004) 4.GB.20
35. Calcioursilite (ursilite: 1957) 9.AK.35 [no] [no]
36. Calcite (calcite: old/ 1836) 5.AB.05
    (IUPAC: calcium carbonate)
37. Calcjarlite (jarlite: 1970) 3.CC.20
38. Calclacite (Y: 1945) 10.AA.25
    (IUPAC: calcium chloro acetate pentahydrate)
39. Calcurmolite (IMA1988-xxx, 1959) 7.HB.15
40. Calcybeborosilite-(Y)^Q (gadolinite: 1963, 2000) 9.AJ.20 [no]
    Note: might be gadolinite-(Y)
41. Calderite (garnet, garnet: 1909) 9.AD.25
    (IUPAC: trimanganese(II) diiron(III) tri(tetraoxysilicate))
42. Calderónite (brackebuschite: IMA2001-022) 8.BG.05 [no]
    (IUPAC: dilead iron(III) hydro divanadate)
43. Caledonite (Y: 1832) 7.BC.50
    (IUPAC: dicopper pentalead hexahydro trisulfate carbonate)
44. Calkinsite-(Ce) (IMA1987 s.p., 1953) 5.CC.25
    (IUPAC: dicerium tricarbonate tetrahydrate)
45. Callaghanite (Y: 1954) 5.DA.25
    (IUPAC: dicopper dimagnesium hexahydro carbonate dihydrate)
46. Calomel (Y: old) 3.AA.30
    (IUPAC: (dimercury) dichloride)
47. Calumetite (anthonyite: IMA1967 s.p., 1963) 3.DA.40
    (IUPAC: calcium tetracopper octahydro dichloride (3.5)hydrate)
48. Calvertite (IMA2006-030) 2.CA.15
    (Cu₅Ge_0.5S₄)
49. Calzirtite (IMA1967 s.p., 1961) 4.DL.10
    (IUPAC: dicalcium pentazirconium dititanium hexadecaoxide)
50. Camanchacaite (alluaudite: IMA2018-025) 8.0 [no] [no]
    (IUPAC: sodium vacancy calcium dimagnesium diarsenate dihydroxoarsenate)
51. Cámaraite (seidozerite, bafertisite: IMA2009-011) 9.B?. [no]
52. Camaronesite (taranakite: IMA2012-094) 8.0 [no] [no]
53. Camérolaite (cyanotrichite: IMA1990-036) 7.DE.75
    (Cu₄Al₂(HSbO₄,SO₄)(OH)₁₀CO₃·2H₂O)
54. Cameronite (IMA1984-069) 2.DB.35
55. Camgasite (IMA1988-031) 8.DJ.15
    (IUPAC: calcium magnesium hydro arsenate pentahydrate)
56. Caminite (IMA1983-015) 7.BB.05
    (IUPAC: heptamagnesium tetrahydro pentasulfate monohydrate)
57. Campigliaite (devilline: IMA1981-001) 7.DD.30
    (IUPAC: tetracopper manganese(II) hexahydro disulfate tetrahydrate)
58. Campostriniite (görgeyite: IMA2013-086a) 7.CD. [no] [no]
59. Canaphite (IMA1983-067) 8.FC.10
    (IUPAC: disodium calcium pyrophosphate tetrahydrate)
60. Canasite (IMA1962 s.p., 1959) 9.DG.80
    (K₃Na₃Ca₅Si₁₂O₃₀(OH)₄)
61. Canavesite (IMA1977-025) 6.H0.50
    (IUPAC: dimagnesium hydroxoborate carbonate pentahydrate)
62. Cancrinite (cancrinite: 1833) 9.FB.05
63. Cancrisilite (cancrinite: IMA1990-013) 9.FB.05
64. Canfieldite (argyrodite: 1894) 2.BA.70
    (IUPAC: octasilver hexasulfa stannide)
65. Cannizzarite (Y: 1924) 2.JB.20
    (IUPAC: octalead tricosasulfa decabismuthide)
66. Cannonite (IMA1992-002) 7.BD.35
    (IUPAC: dibismuth dihydro oxosulfate)
67. Canosioite (brackebuschite: IMA2015-030) 8.BG. [no] [no]
    (IUPAC: dibarium iron(III) hydro diarsenate)
68. Canutite (alluaudite: IMA2013-070) 8.0 [no] [no]
    (IUPAC: sodium vacancy trimanganese arsenate di(hydroxoarsenate))
69. Caoxite (oxalate: IMA1996-012) 10.AB.50
    (IUPAC: calcium oxalate trihydrate)
70. Capgaronnite (IMA1990-011) 2.FC.20a
    (IUPAC: silver mercury chloro sulfide)
71. Cappelenite-(Y) (IMA1987 s.p., 1884) 9.AJ.30
    (BaY₆B₆Si₃O₂₄F₂)
72. Capranicaite (IMA2009-086) 9.DB.50 [no]
    (KCaNaAl₄B₄Si₂O₁₈)
73. Caracolite (apatite: 1886) 7.BD.20
    (IUPAC: disodium (dilead sodium) chloro trisulfate)
74. Carboborite (IMA1967 s.p., 1964) 6.AC.50
    (IUPAC: dicalcium magnesium di(tetrahydro borate) dicarbonate tetrahydrate)
75. Carbobystrite (cancrinite: IMA2009-028) 9.FB.05 [no]
76. Carbocernaite (carbocernaite: IMA1967 s.p., 1961) 5.AB.50
77. Carboirite (IMA1980-066) 9.J0.05 [no]
    (IUPAC: iron(II) dialuminium germanium pentaoxo dihydroxy)
78. Carbokentbrooksite (eudialyte: IMA2002-056) 9.CO.10 [no]
79. Carbonatecyanotrichite (cyanotrichite: IMA1967 s.p., 1963) 7.DE.10
    (IUPAC: tetracopper dialuminium dodecahydro carbonate dihydrate)
80. Cardite (IMA2015-125) 8.0 [no] [no]
    (IUPAC: (5.5)zinc diarsenate trihydro hydroxoarsenate trihydrate)
81. Carducciite (IMA2013-006) 2.HB. [no] [no]
82. Caresite (hydrotalcite: IMA1992-030) 5.DA.40
    (IUPAC: tetrairon(II) dialuminium dodecahydro carbonate trihydrate)
83. Carletonite (carletonite: IMA1969-016) 9.EB.20
84. Carletonmooreite (silicide: IMA2018-068) 1.0 [no] [no]
    (IUPAC: trinickel silicide)
85. Carlfrancisite (hematolite: IMA2012-033) 8.BE.45 [no] [no]
86. Carlfriesite (IMA1973-013) 4.JK.25
    (IUPAC: calcium ditellurium(IV) tellurium(VI) octaoxide)
87. Carlgieseckeite-(Nd) (apatite: IMA2010-036) 8.BN.05 [no]
    (IUPAC: sodium niobium tricalcium fluoro triphosphate)
88. Carlhintzeite (IMA1978-031) 3.CB.45
    (IUPAC: dicalcium heptafluoroaluminate monohydrate)
89. Carlinite (IMA1974-062) 2.BD.25
    (IUPAC: dithallium sulfide)
90. Carlosbarbosaite (IMA2010-047) 4.0 [no]
    (IUPAC: diuranyl diniobium hexaoxo dihydroxy dihydrate)
91. Carlosruizite (IMA1993-020) 7.DG.40
    (IUPAC: tripotassium pentasodium pentamagnesium hexaiodate hexaselenate hexahydrate)
92. Carlosturanite (IMA1984-009) 9.DJ.25
93. Carlsbergite (nitride, rocksalt: IMA1971-026) 1.BC.15
    (IUPAC: chromium nitride)
94. Carlsonite (metavoltine: IMA2014-067) 7.0 [no] [no]
    (IUPAC: pentammonium triiron(III) oxohexasulfate heptahydrate)
95. Carmeltazite (IMA2018-103) 4.0 [no] [no]
    (IUPAC: zirconium dialuminium tetratitanium undecaoxide)
96. Carmichaelite (IMA1996-062) 4.DB.50
97. Carminite (carminite: 1850) 8.BH.30
    (IUPAC: lead diiron(III) dihydro diarsenate)
98. Carnallite (carnallite: 1856) 3.BA.10
    (IUPAC: potassium magnesium trichloride hexahydrate)
99. Carnotite (Y: 1899) 4.HB.05
    (IUPAC: dipotassium diuranyl divanadate trihydrate)
100. Carobbiite (halite, rocksalt: 1956) 3.AA.20
     (IUPAC: potassium fluoride)
101. Carpathite (IMA1971 s.p., 1955) 10.BA.30
     (IUPAC: coronene, a polycyclic aromatic hydrocarbon (PAH))
102. Carpholite (carpholite: 1817) 9.DB.05
     (IUPAC: manganese(II) dialuminium hexaoxy disilicate tetrahydroxyl)
103. Carraraite (ettringite: IMA1998-002) 7.DG.15
     (IUPAC: tricalcium germanium hexahydro sulfate carbonate dodecahydrate)
104. Carrboydite^Q (hydrotalcite: IMA1974-033) 7.DD.35
105. Carrollite (spinel, linnaeite: 1852) 2.DA.05
     (IUPAC: copper dicobalt tetrasulfide)
106. Caryinite (alluaudite: IMA1980 s.p., 1874) 8.AC.10
     (IUPAC: sodium calcium calcium dimanganese triarsenate)
107. Caryochroite (IMA2005-031) 9.HA.65 [no]
108. Caryopilite (serpentine: IMA1967 s.p., 1889) 9.ED.15
109. Cascandite (pectolite: IMA1980-011) 9.DG.07
110. Caseyite (IMA2019-002) 4.0 [no] [no]
111. Cassagnaite (ardennite: IMA2006-019a) 9.BJ.65
112. Cassedanneite (IMA1984-063) 7.FC.20
     (IUPAC: pentalead divanadate dichromate monohydrate)
113. Cassidyite (fairfiedite: IMA1966-024) 8.CG.05
     (IUPAC: dicalcium nickel diphosphate dihydrate)
114. Cassiterite (rutile: 1832) 4.DB.05
     (IUPAC: tin dioxide)
115. Castellaroite (IMA2015-071) 8.CD. [no] [no]
     (IUPAC: trimanganese(III) diarsenate (4.5)hydrate)
116. Caswellsilverite (IMA1981-012a) 2.FB.05
     (IUPAC: sodium chromium sulfide)
117. Catalanoite (IMA2002-008) 8.CJ.70 [no]
     (IUPAC: disodium hydroxophosphate octahydrate)
118. Catamarcaite (IMA2003-020) 2.CB.35b [no]
     (IUPAC: hexacopper germanium tungsten octasulfide)
119. Catapleiite (catapleiite: 1850) 9.CA.15
     (IUPAC: disodium zirconium nonaoxytrisilicate dihydrate)
120. Cattierite (pyrite: 1945) 2.EB.05a
     (IUPAC: cobalt disulfide)
121. Cattiite (IMA2000-032) 8.CE.50 [no]
     (IUPAC: trimagnesium diphosphate docosahydrate)
122. Cavansite (IMA1967-019) 9.EA.50
     (Ca(V⁴⁺O)(Si₄O₁₀)·4H₂O)
123. Cavoite (IMA2001-024) 4.HE.40
     (IUPAC: calcium trivanadium heptaoxide)
124. Cayalsite-(Y) (IMA2011-094) 9.0 [no]
125. Caysichite-(Y) (IMA1973-044) 9.DJ.15

Ce – Ch

1. Cebaite 5.BD.15
   (IUPAC: tribarium diREE difluoro pentacarbonate)
   1. Cebaite-(Ce) (IMA1987 s.p., 1983) 5.BD.15
   2. Cebaite-(Nd)^N (Y: 2000) 5.BD.15 [no]
2. Cebollite^Q (Y: 1914) 9.BB.10
   Note: incomplete description.
3. Čechite (IMA1980-068) 8.BH.40
   (IUPAC: lead iron(II) hydro vanadate)
4. Čejkaite (IMA1999-045) 5.ED.50 [no]
   (IUPAC: tetrasodium uranyl tricarbonate)
5. Celadonite (mica: IMA1998 s.p., 1847) 9.EC.15
6. Celestine (IMA1967 s.p., 1791) 7.AD.35
   (IUPAC: strontium sulfate)
7. Celleriite (tourmaline: IMA2019-089) 9.CK. [no] [no]
8. Celsian (Y: 1895) 9.FA.30
9. Centennialite (IMA2013-110) 3.DA. [no] [no]
10. Cerchiaraite 9.CF.25
    1. Cerchiaraite-(Al) (cerchiaraite: IMA2012-011) 9.CF.25 [no] [no]
    2. Cerchiaraite-(Fe) (cerchiaraite: IMA2012-012) 9.CF.25 [no] [no]
    3. Cerchiaraite-(Mn) (cerchiaraite: IMA1999-012) 9.CF.25 [no]
11. Cerianite-(Ce) (IMA1987 s.p., 1955) 4.DL.05
    (IUPAC: cerium dioxide)
12. Cerite-(Ce) (cerite: IMA1987 s.p., 1804) 9.AG.20
13. Cerium^Q (Y: 2002) 1.0 [no] [no]
14. Černýite (stannite: IMA1976-057) 2.CB.15a
    (IUPAC: dicopper cadmium tin tetrasulfide)
15. Cerromojonite (IMA2018-040) 2.0 [no] [no]
16. Ceruléite (IMA2007 s.p., 1900) 8.DE.25
    (IUPAC: dicopper heptaluminium tridecahydro tetrarsenate (11.5)hydrate)
17. Cerussite (Y: 1565) 5.AB.15
    (IUPAC: lead carbonate)
18. Cervandonite-(Ce) (IMA1986-044) 9.BE.92
19. Cervantite (cervantite: IMA1962 s.p., 1850 Rd) 4.DE.30
    (IUPAC: antimony(III) antimony(V) tetraoxide)
20. Cervelleite (IMA1986-018) 2.BA.60
    (IUPAC: tetrasilver telluride sulfide)
21. Cesanite (apatite: IMA1980-023) 7.BD.20
    (IUPAC: dicalcium trisodium hydro trisulfate)
22. Césarferreiraite (laueite, laueite: IMA2012-099) 8.DC. [no] [no]
    (IUPAC: iron(II) diiron(III) diarsenate octahydrate)
23. Cesàrolite (Y: 1920) 4.FG.10
    (IUPAC: lead dihydro trimanganese(IV) hexaoxide)
24. Cesbronite (tellurium oxysalt: IMA2017-C, IMA1974-006) 4.JN.15
    (IUPAC: tricopper tellurium(VI) tetrahydro tetraoxide)
25. Cesiodymite (IMA2016-002) 7.0 [no] [no]
    (IUPAC: caesium potassium pentacopper oxopentasulfate)
26. Cesiokenopyrochlore (pyrochlore: IMA2016-104) 4.DH. [no] [no]
27. Cesplumtantite (IMA1985-040) 4.DM.15
    (IUPAC: dicaesium trilead octatantalum tetracosaoxide)
28. Cetineite (IMA1986-019) 2.MA.05
    (NaK₅Sb₁₄S₆O₁₈·6H₂O)
29. Chabazite 9.GD.10
    (chain of 6-membered rings – tabular zeolite)
    1. Chabazite-Ca (zeolitic tectosilicate: IMA1997 s.p., 1792) 9.GD.10
       (Ca[Al₂Si₄O₁₂]₂·12H₂O)
    2. Chabazite-K (zeolitic tectosilicate: IMA1997 s.p., 1997) 9.GD.10 [no]
       (K₂Ca[Al₂Si₄O₁₂]₂·12H₂O)
    3. Chabazite-Mg (zeolitic tectosilicate: IMA2009-060) 9.GD.10? [no] [no]
       (KMg[Al₃Si₉O₂₄]·10H₂O)
    4. Chabazite-Na (zeolitic tectosilicate: IMA1997 s.p.) 9.GD.10 [no]
       (Na₂Ca[Al₂Si₄O₁₂]₂·12H₂O)
    5. Chabazite-Sr (zeolitic tectosilicate: IMA1999-040) 9.GD.10 [no]
       (Sr₂[Al₂Si₄O₁₂]₂·12H₂O)
30. Chabournéite (IMA1976-042) 2.HC.05e
    (Tl₄Pb₂(Sb,As)₂₀S₃₄)
31. Chadwickite (IMA1997-005) 4.JA.60 [no]
    (IUPAC: uranyl hydrogenarsenite)
32. Chaidamuite (IMA1985-011) 7.DC.30
    (IUPAC: zinc iron(III) hydro disulfate tetrahydrate)
33. Chalcanthite (Y: 1853) 7.CB.20
    (IUPAC: copper sulfate pentahydrate)
34. (Chalcedony: a cryptocrystalline form of silica, composed of very fine intergrowths of quartz and moganite)
35. Chalcoalumite (Y: 1925) 7.DD.75
    (IUPAC: copper tetraluminium dodecahydro sulfate trihydrate)
36. Chalcocite (Y: old/ 1751) 2.BA.05
    (IUPAC: dicopper sulfide)
37. Chalcocyanite (Y: 1873) 7.AB.10
    (IUPAC: copper sulfate)
38. Chalcomenite (Y: 1881) 4.JH.05
    (IUPAC: copper selenite(IV) dihydrate)
39. Chalconatronite (Y: 1955) 5.CB.40
    (IUPAC: disodium copper dicarbonate trihydrate)
40. Chalcophanite (Y: 1875) 4.FL.20
    (IUPAC: zinc trimanganese(IV) heptaoxide trihydrate)
41. Chalcophyllite (Y: 1801) 8.DF.30
    (Cu₁₈A_l2(AsO₄)₄(SO₄)₃(OH)₂₄·36H₂O)
42. Chalcopyrite (chalcopyrite: 1725?) 2.CB.10a
    (IUPAC: copper(I) iron(III) disulfide)
43. Chalcosiderite (Y: 1814) 8.DD.15
    (IUPAC: copper hexairon(III) octahydro tetraphosphate tetrahydrate)
44. Chalcostibite (chalcostibite: 1835) 2.HA.05
    (IUPAC: copper antimonide disulfide)
45. Chalcothallite (IMA1966-008) 2.BD.40
46. Challacolloite (IMA2004-028) 3.AA.55
    (IUPAC: potassium dilead pentachloride)
47. Chambersite (IMA1967 s.p., 1962) 6.GA.05
    (Mn²⁺₃B₇O₁₃Cl, tecto-heptaborate)
48. Chaméanite (IMA1980-088) 2.LA.35
    ((Cu,Fe)₄As(Se,S)₄)
49. Chamosite (chlorite: 1820) 9.EC.55
50. Chanabayaite (triazolate: IMA2013-065) 10.0 [no] [no]
51. Changbaiite (Y: 1978) 4.DF.10
    (IUPAC: lead diniobium hexaoxide)
52. Changchengite (IMA1995-047) 2.EB.25
    (IUPAC: iridium bismuthide sulfide)
53. Changoite (IMA1997-041) 7.CC.50
    (IUPAC: disodium zinc disulfate tetrahydrate)
54. Chantalite (IMA1977-001) 9.AG.55
55. Chaoite (IMA1968-019) 1.CB.05b
56. Chapmanite (IMA1968 s.p., 1924) 9.ED.25
57. Charleshatchettite (IMA2015-048) 4.0 [no] [no]
58. Charlesite (ettringite: IMA1981-043) 7.DG.15
59. Charmarite (hydrotalcite: IMA1992-026) 5.DA.40
    (IUPAC: tetramanganese dialuminium dodecahydro carbonate trihydrate)
60. Charoite (IMA1977-019) 9.DG.92
61. Chatkalite (IMA1981-004) 2.CB.20
    (IUPAC: hexacopper iron ditin octasulfide)
62. Chayesite (milarite: IMA1987-059) 9.CM.05
63. Chegemite (IMA2008-038) 9.AF.
    (IUPAC: heptacalcium tritetraoxysilicate trihydroxyl)
64. Chekhovichite (IMA1986-039) 4.JK.35
    (IUPAC: dibismuth(III) tetratellurium(IV) undecaoxide)
65. Chelkarite (Y: 1968) 6.H0.05
66. Chenevixite (Y: 1866) 8.DD.05
67. Chengdeite (auricupride: IMA1994-023) 1.AG.35
    (IUPAC: triiridium iron alloy)
68. Chenguodaite (IMA2004-042a) 2.BA.60 [no]
    (IUPAC: nonasilver iron ditelluride tetrasulfide)
69. Chenite (IMA1983-069) 7.BC.70
    (IUPAC: copper tetralead hexahydro disulfate)
70. Chenmingite (IMA2017-036) 4.BB. [no] [no]
71. Cheralite (IMA2005-F, 1953) 8.AD.50
    (IUPAC: calcium thorium diphosphate)
72. Cheremnykhite (vanadate-tellurium oxysalt: IMA1989-017) 8.DL.20
    (IUPAC: trilead trizinc tellurium hexaoxo divanadate)
73. Cherepanovite (modderite: IMA1984-041) 2.CC.15
    (IUPAC: rhenium arsenide)
74. Chernikovite (IMA1988 s.p., IMA1985-M) 8.EB.15
    
75. Chernovite-(Y) (zircon: IMA1967-027) 8.AD.35
    (IUPAC: yttrium arsenate)
76. Chernykhite (mica: IMA1972-006) 9.EC.15
    (BaV³⁺₂(Si₂A_l2)O₁₀(OH)₂)
77. Chervetite (IMA1967 s.p., 1963) 8.FA.15
    (IUPAC: dilead divanadium(V) heptaoxide)
78. Chesnokovite (IMA2006-007) 9.AC.20
    (IUPAC: disodium (dioxysilicate dihydroxyl) octahydrate)
79. Chessexite (IMA1981-054) 7.DG.35
    (Na₄Ca₂Mg₃Al₈(SiO₄)₂(SO₄)₁₀(OH)₁₀·40H₂O)
80. Chesterite (IMA1977-010) 9.DF.05
    (Mg₁₇Si₂₀O₅₄(OH)₆)
81. Chestermanite (orthopinakiolite: IMA1986-058) 6.AB.40
82. Chevkinite-(Ce) (chevkinite: IMA1987 s.p., 1842) 9.BE.70
83. Chiappinoite-(Y) (IMA2014-040) 9.0 [no] [no]
    (IUPAC: diyttrium manganese tetra(heptaoxy trisilicate))
84. Chiavennite (zeolitic tectosilicate: IMA1981-038) 9.GF.25
    (CaMn²⁺(BeOH)₂Si₅O₁₃·2H₂O)
85. Chibaite (IMA2008-067) 10.0 [no] [no]
86. Chihuahuaite (magnetoplumbite: IMA2009-027 Rn) 04.CC.45 [no] [no]
87. Childrenite (Y: 1823) 8.DD.20
    (IUPAC: iron(II) aluminium dihydro phosphate monohydrate)
88. Chiluite (IMA1988-001) 7.BD.55
89. Chinleite-(Y) (IMA2016-017) 7.0 [no] [no]
    (IUPAC: sodium yttrium disulfate monohydrate)
90. Chiolite (Y: 1846) 3.CE.05
91. Chiyokoite (ettringite: IMA2019-054) 6.0 [no] [no]
92. Chirvinskyite (IMA2016-051) 9.B?. [no] [no]
93. Chistyakovaite (IMA2005-003) 8.EB.20
    (IUPAC: aluminium diuranyl (fluoro,hydro) diarsenate (6.5)hydrate)
94. Chivruaiite (IMA2004-052) 9.DG.45 [no]
95. Chkalovite (Y: 1939) 9.DM.20
96. Chladniite (IMA1993-010) 8.AC.50
    (IUPAC: disodium calcium heptamagnesium hexaphosphate)
97. Chloraluminite (Y: 1872) 3.BC.05
    (IUPAC: aluminium trichloride hexahydrate)
98. Chlorapatite (apatite: IMA2010 s.p., 1860) 8.BN.05
    (IUPAC: pentacalcium chloro triphosphate)
99. Chlorargyrite (IMA1962 s.p., 1902) 3.AA.15
    (IUPAC: silver(I) chloride)
100. Chlorartinite (IMA1996-005) 5.DA.10
     (IUPAC: dimagnesium chloro hydro carbonate (2.5)hydrate)
101. Chlorbartonite (IMA2000-048) 2.FC.10 [no]
     (IUPAC: hexapotassium tetracosairon chloro hexacosasulfide)
102. Chlorellestadite (apatite: IMA2017-013, IMA2010 s.p., IMA2008 s.p., IMA1981-B) 9.AH.25
103. Chloritoid (Y: 1832) 9.AF.85
     (IUPAC: iron(II) dialuminium oxy tetraoxysilicate dihydroxyl)
104. Chlorkyuygenite (IMA2013-C, IMA2012-046 Rn) 4.0 [no] [no]
105. Chlormagaluminite (hydrotalcite: IMA1980-098) 5.DA.45
     (IUPAC: tetramagnesium dialuminium dichloro dodecahydroxide diwater)
106. Chlormanganokalite (Y: 1906) 3.CJ.05
     (IUPAC: tetrapotassium manganese hexachloride)
107. Chlormayenite (IMA2013-C, IMA1963-016) 4.CC.20
     (IUPAC: dodecacalcium tetradecaluminium dichloro ditricontaoxide)
108. Chlorocalcite (Y: 1872) 3.AA.40
     (IUPAC: potassium calcium trichloride)
109. Chloromagnesite^Q (Y: 1873) 3.AB.20 [no] [no]
     (IUPAC: magnesium dichloride)
110. Chloromenite (IMA1996-048) 4.JG.10
     (IUPAC: nonacopper hexachloro dioxo tetraselenite(IV))
111. Chlorophoenicite (Y: 1924) 8.BE.35
112. Chlorothionite (Y: 1872) 7.BC.25
     (IUPAC: dipotassium copper dichloro sulfate)
113. Chloroxiphite (Y: 1923) 3.DB.30
     (IUPAC: trilead copper dihydro dioxy dichloride)
114. Choloalite (IMA1980-019) 4.JK.45
115. Chondrodite (Y: 1817) 9.AF.45
116. Chongite (IMA2015-039) 8.0 [no] [no]
     (IUPAC: tricalcium dimagnesium diarsenate dihydroxoarsenate tetrahydrate)
117. Chopinite (olivine: IMA2006-004) 8.AB.15 [no]
     (IUPAC: trimagnesium diphosphate)
118. Chovanite (IMA2009-055) 2.JB.35e [no]
119. Chrisstanleyite (chrisstanleyite: IMA1996-044) 2.BC.15
     (IUPAC: disilver tripalladium tetraselenide)
120. Christelite (IMA1995-030) 7.DD.25
     (IUPAC: trizinc dicopper hexahydro disulfate tetrahydrate)
121. Christite (IMA1976-015) 2.HD.15
     (IUPAC: thallium mercury arsenide trisulfide)
122. Christofschäferite-(Ce) (chevkinite: IMA2011-107) 9.B?. [no]
123. Chromatite (zircon: IMA1967 s.p., 1963) 7.FA.10
     (IUPAC: calcium chromate (VI))
124. Chrombismite (IMA1995-044) 4.CC.05
     (IUPAC: hexadecabismuth chromium heptacosaoxide)
125. Chromceladonite (mica: IMA1999-024) 9.EC.15 [no]
126. Chromferide (alloy: IMA1984-021) 1.AE.15
     (Fe
     _1.5Cr
     _0.2)
127. Chromio-pargasite [Ca-amphibole: IMA2012 s.p., ehimeite (IMA2011-023)] 9.DE.15 [no]
128. Chromite (spinel, spinel: 1845) 4.BB.05
     (IUPAC: iron(II) chromate)
129. Chromium (iron: IMA1980-094) 1.AE.05
130. Chromium-dravite (tourmaline: IMA1982-055) 9.CK.05
131. Chromo-alumino-povondraite (tourmaline: IMA2013-089 with new type material, IMA2009-088 D) 9.CK.05 [no] [no]
132. Chromphyllite (IMA1995-052) 9.EC.15 [no]
133. Chromschieffelinite (lead-tellurium oxysalt: IMA2011-003) 7.DF. [no]
134. Chrysoberyl (olivine: 1789) 4.BA.05
     (IUPAC: beryllium dialuminium tetraoxide)
135. Chrysocolla (a mineral) (a mineraloid) (IMA1980 s.p., 315 BC) 9.ED.20
136. Chrysothallite (IMA2013-008) 3.0 [no] [no]
     (IUPAC: hexapotassium hexacopper thallium(III) tetrahydro heptadecachloride monohydrate)
137. Chrysotile (IMA2007 s.p., 1834 Rd) 9.ED.15 [no]
138. Chubarovite (IMA2014-018) 6.0 [no] [no]
     (IUPAC: potassium dizinc dichloro borate)
139. Chukochenite (IMA2018-132a) 4.0 [no] [no]
     (IUPAC: lithium octaoxo pentaaluminate)
140. Chukotkaite (IMA2019-124) 2.0 [no] [no]
     (AgPb₇Sb₅S₁₅)
141. Chudobaite (IMA1962 s.p.) 8.CE.05
     (IUPAC: pentamagnesium diarsenate di(hydroxoarsenate) decahydrate)
142. Chukanovite (malachite: IMA2005-039) 5.BA.10
     (IUPAC: diiron dihydro carbonate)
143. Chukhrovite 3.CG.10
     1. Chukhrovite-(Ca) (IMA2010-081) 3.CG.10 [no]
     2. Chukhrovite-(Ce) (IMA1987 s.p., 1979) 3.CG.10
     3. Chukhrovite-(Nb) (IMA2004-023) 3.CG.10 [no]
     4. Chukhrovite-(Y) (IMA1987 s.p., 1960) 3.CG.10
144. Churchite-(Y) (IMA1987 s.p., 1865) 8.CJ.50
     (IUPAC: yttrium phosphate dihydrate)
145. Chursinite (IMA1982-047a) 8.AD.60
     (IUPAC: [dimercury] dimercury(II) diarsenate)
146. Chvaleticeite (IMA1984-059) 7.CB.25
     (IUPAC: manganese sulfate hexahydrate)
147. Chvilevaite (IMA1987-017) 2.FB.10
     (Na(Cu,Fe,Zn)₂S₂)

Ci – Co

1. Cianciulliite (IMA1990-042) 4.FL.55
   (IUPAC: dimagnesium manganese(II) dizinc decahydroxide (2-4)hydrate)
2. Cinnabar (Theophrastus, 315 BC) 2.CD.15a
   (IUPAC: mercury sulfide)
3. Ciprianiite (hellandite: IMA2001-021) 9.DK.20 [no]
   (Ca₄ThCeAlSi₄B₄O₂₂(OH)₂)
4. Ciriottiite (madocite: IMA2015-027) 2.0 [no] [no]
5. Cirrolite^Q (Y: 1868) 8.BH.20 [no] [no]
   (IUPAC: tricalcium dialuminium trihydro triphosphate)
6. Clairite (IMA1982-093) 7.DF.55
   (IUPAC: diammonium triiron(III) trihydro tetrasulfate trihydrate)
7. Claraite (IMA1981-023) 5.DA.30
   (IUPAC: tricopper(II) tetrahydro carbonate tetrahydrate)
8. Claringbullite (IMA2015-L, IMA1976-029 Rd) 3.DA.15
   (IUPAC: tetracopper(II) heptahydroxide chloride)
9. Clarkeite (Y: 1931) 4.GC.05
   (IUPAC: sodium uranyl oxyhydroxide (n)hydrate)
10. Claudetite (claudetite: 1868) 4.CB.45
    (IUPAC: diarsenic trioxide)
11. Clausthalite (galena, rocksalt: 1832) 2.CD.10
    (IUPAC: lead selenide)
12. Clearcreekite (IMA1999-003) 5.DC.30
    (IUPAC: tri[dimercury] dihydro dicarbonate tetrahydrate)
13. Clerite (berthierite: IMA1995-029) 2.HA.20
    (IUPAC: manganese diantimonide tetrasulfide)
14. Cleusonite (crichtonite: IMA1998-070) 4.CC.40
15. Cliffordite (uranyl tellurite: IMA1966-046) 4.JK.75
    (IUPAC: uranyl tritellurium(IV) nonaoxide)
16. Clinoatacamite (atacamite: IMA1993-060) 3.DA.10b
    (IUPAC: dicopper trihydroxide chloride)
17. Clinobehoite (IMA1988-024) 4.FA.05b
    (IUPAC: beryllium dihydroxide)
18. Clinobisvanite (IMA1973-040) 8.AD.65
    (IUPAC: bismuth vanadate)
19. Clinocervantite (clinocervantite: IMA1997-017) 4.DE.30 [no]
    (IUPAC: antimony(III) antimony(V) tetraoxide)
20. Clinochalcomenite^N (Y: 1981) 4.JH.10
    (IUPAC: copper selenite dihydrate)
21. Clinochlore (chlorite: 1851) 9.EC.55
22. Clinoclase (Y: 1830) 8.BE.20
    (IUPAC: tricopper trihydro arsenate)
23. Clinoenstatite (pyroxene: IMA1988 s.p., 1906) 9.DA.10
    (IUPAC: dimagnesium hexaoxy disilicate)
24. Clino-ferri-holmquistite [Li-amphibole: IMA2014 s.p., ferri-ottoliniite (IMA2001-067)] 9.DE. [no]
25. Clino-ferro-ferri-holmquistite [Li-amphibole: IMA2012 s.p., ferri-clinoferroholmquistite (IMA2001-066)] 9.DE.25 [no]
26. Clinoferrosilite (pyroxene: IMA1988 s.p., 1935) 9.DA.10
    (IUPAC: diiron(II) hexaoxy disilicate)
27. Clinohedrite (Y: 1866) 9.AE.30
    (IUPAC: calcium zinc tetraoxysilicate monohydrate)
28. Clinohumite (humite: 1876) 9.AF.55
    (IUPAC: nonamagnesium tetra(tetraoxysilicate) difluoride)
29. Clinojimthompsonite (IMA1977-012) 9.DF.05
    (Mg₅Si₆O₁₆(OH)₂)
30. Clinokurchatovite (IMA1982-017) 6.BA.10
    (calcium magnesium pentaoxo diborate)
31. Clinometaborite (IMA2010-022) 6.0 [no]
    (IUPAC: oxoborinic acid)
32. Clino-oscarkempffite (lillianite: IMA2012-086) 2.0 [no] [no]
33. Clinophosinaite (IMA1979-083) 9.CF.15
    (IUPAC: trisodium calcium trioxysilicate phosphate)
34. Clinoptilolite 9.GE.05
    (zeolite family, chain of T₁₀O₂₀ tetrahedra)
    1. Clinoptilolite-Ca (zeolitic tectosilicate: IMA1997 s.p., 1977) 9.GE.05 [no]
       (Ca₃(Si₃₀Al₆O₇₂)·20H₂O)
    2. Clinoptilolite-K (zeolitic tectosilicate: IMA1997 s.p., 1923) 9.GE.05 [no]
       (K₆(Si₃₀Al₆O₇₂)·20H₂O)
    3. Clinoptilolite-Na (zeolitic tectosilicate: IMA1997 s.p., 1969) 9.GE.05
       (Na₆(Si₃₀Al₆O₇₂)·20H₂O)
35. Clinosafflorite (löllingite: IMA1970-014) 2.EB.15a
    (IUPAC: cobalt diarsenide)
36. Clino-suenoite [Mg-Fe-Mn-amphibole: IMA2016-111] 9.DE. [no] [no]
37. Clinotobermorite (tobermorite: IMA1990-005) 9.DG.10
    (Ca₅Si₆O₁₇(H₂O)₂·(Ca·3H₂O))
38. Clinoungemachite^Q (Y: 1938) 7.DG.10
    (IUPAC: tripotassium octasodium iron(III) dihydro hexasulfate decahydrate)
39. Clinozoisite (epidote, clinozoisite: IMA2006 s.p., 1896) 9.BG.05a
    (IUPAC: dicalcium trialuminium (heptaoxydisilicate) (tetraoxysilicate) oxyhydroxyl)
40. Clintonite (mica: IMA1998 s.p., 1843) 9.EC.35
41. Cloncurryite (IMA2005-060) 8.DC.60 [no]
42. Coalingite (hydrotalcite: IMA1965-011) 5.DA.55
    (IUPAC: decamagnesium diiron(III) tetracosahydro carbonate dihydrate)
43. Cobaltarthurite (arthurite: IMA2001-052) 8.DC.15 [no]
    (IUPAC: cobalt diiron(III) dihydro diarsenate tetrahydrate)
44. Cobaltaustinite (adelite: IMA1987-042) 8.BH.35
    (IUPAC: calcium cobalt hydro arsenate)
45. Cobaltite (cobaltite: 1797) 2.EB.25
    (IUPAC: cobalt sulfa arsenide)
46. Cobaltkieserite (kieserite: IMA2002-004) 7.CB.05 [no]
    (IUPAC: cobalt sulfate monohydrate)
47. Cobaltkoritnigite (koritnigite: IMA1980-013) 8.CB.20
    (IUPAC: cobalt hydroxoarsenate monohydrate)
48. Cobaltlotharmeyerite (tsumcorite: IMA1997-027) 8.CG.15 [no]
    (IUPAC: calcium dicobalt diarsenate dihydrate)
49. Cobaltneustädtelite (IMA2000-012) 8.BK.10 [no]
    (Bi₂Fe³⁺(Co,Fe³⁺)(AsO₄)₂(O,OH)₄)
50. Cobaltoblödite (blödite: IMA2012-059) 7.CC. [no] [no]
    (IUPAC: disodium cobalt disulfate tetrahydrate)
51. Cobaltomenite (cobaltomenite: IMA2007 s.p., 1882) 4.JH.10
    (IUPAC: cobalt selenite(IV) dihydrate)
52. Cobaltpentlandite (pentlandite: IMA1962 s.p., 1959) 2.BB.15
    (IUPAC: nonacobalt octasulfide)
53. Cobalttsumcorite (tsumcorite: IMA1999-029) 8.CG.15 [no]
    (IUPAC: lead dicobalt diarsenate dihydrate)
54. Cobaltzippeite (IMA1971-006) 7.EC.05
    (IUPAC: cobalt diuranyl dioxo sulfate (3.5)hydrate)
55. Coccinite (Y: 1845) 3.AB.10 [no]
    (IUPAC: mercury iodide)
56. Cochromite (spinel, spinel: IMA1978-049) 4.BB.05
    (IUPAC: cobalt dichromium tetraoxide)
57. Coconinoite (IMA1965-003) 8.EB.35
    (IUPAC: diiron(III) dialuminium diuranyl dihydro tetraphosphate sulfate icosahydrate)
58. Coesite (IMA1962 s.p., 1954) 4.DA.35
    (IUPAC: dioxysilicate)
59. Coffinite (zircon: 1955) 9.AD.30
    (IUPAC: uranium tetraoxysilicate (n)hydrate)
60. Cohenite (perovskite: 1889) 1.BA.05
    (IUPAC: triiron carbide)
61. Coiraite (IMA2005-024) 2.HF.25b [no]
62. Coldwellite (IMA2014-045) 2.BC. [no] [no]
    (IUPAC: tripalladium disilver sulfide)
63. Colemanite (Y: 1883) 6.CB.10
64. Colimaite (IMA2007-045) 2.FB.25 [no]
    (IUPAC: tripotassium vanadium tetrasulfide)
65. Colinowensite (IMA2012-060) 9.0 [no] [no]
66. Collinsite (fairfieldite: 1927) 8.CG.05
    (IUPAC: dicalcium magnesium diphosphate dihydrate)
67. Coloradoite (sphalerite: 1878) 2.CB.05a
    (IUPAC: mercury telluride)
68. Colquiriite (IMA1980-015) 3.CB.20
    (calcium lithium hexafluoroaluminate)
69. Columbite 4.DB.35
    (IUPAC: metal diniobium hexaoxide)
    1. Columbite-(Fe) (columbite: IMA2007 s.p., 1805) 4.DB.35
    2. Columbite-(Mg) (columbite: IMA1967 s.p., 1963) 4.DB.35
    3. Columbite-(Mn) (columbite: IMA2007 s.p., 1892) 4.DB.35
70. Colusite (germanite: 1914) 2.CB.30
    (IUPAC: dodecacopper vanadium arsenide hexadecasulfide)
71. Comancheite (IMA2013-B, IMA1980-077 Rd) 3.DD.65
    (Hg²⁺
    ₅₅N³⁻
    ₂₄(NH
    ₂,OH)
    ₄(Cl,Br)
    ₃₄)
72. Combeite (lovozerite, zirsinalite–lovozerite: 1957) 9.CJ.15a
    (Na_4.5Ca_3.5Si₆O_17.5(OH)_0.5)
73. Comblainite (hydrotalcite: IMA1978-009) 5.DA.50
    (IUPAC: hexanickel dicobalt(III) hexadecahydro carbonate tetrahydrate)
74. Compreignacite (compreignacite: IMA1964-026) 4.GB.05
    (IUPAC: dipotassium hexauranyl hexahydro tetraoxide heptahydrate)
75. Congolite (boracite: IMA1971-030) 6.GA.10
    (Fe²⁺₃B₇O₁₃Cl)
76. Conichalcite (adelite: 1849) 8.BH.35
    (IUPAC: calcium copper hydro arsenate)
77. Connellite (connellite: 1847) 3.DA.25
    (Cu₃₆(SO₄)(OH)₆₂Cl₈·6H₂O)
78. Cookeite (chlorite: 1866) 9.EC.55
79. Coombsite (IMA1989-058) 9.EG.35
80. Cooperite (Y: 1928) 2.CC.35b
    (IUPAC: platinum sulfide)
81. Coparsite (IMA1996-064) 8.BE.80
    (IUPAC: tetracopper(II) chloro dioxo arsenate)
82. Copiapite (Y: 1833) 7.DB.35
    (IUPAC: iron(II) tetrairon(III) dihydro hexasulfate icosahydrate)
83. Copper (element: old) 1.AA.05
84. Coquandite (IMA1991-024) 7.DE.35
85. Coquimbite (Y: 1841) 7.CB.55
    (IUPAC: diiron(III) trisulfate nonahydrate)
86. Coralloite (arthurite: IMA2010-012) 8.DC.20 [no] [no]
    (IUPAC: manganese(II) dimanganese(III) dihydro diarsenate tetrahydrate)
87. Corderoite (IMA1973-037) 2.FC.15a
    (IUPAC: trimercury dichloro disulfide)
88. Cordierite (beryl: 1813) 9.CJ.10
    (IUPAC: dimagnesium trialuminium octadecaoxy alumo pentasilicate)
89. Cordylite (cordylite) 5.BD.05
    1. Cordylite-(Ce) (IMA2000-C, IMA1987 s.p., 1901) 5.BD.05
       (IUPAC: sodium barium dicerium fluoro tetracarbonate)
    2. Cordylite-(La) (IMA2010-058) 5.BD.05 [no]
       (IUPAC: sodium barium dilanthanum fluoro tetracarbonate)
90. Corkite (alunite, beudandite: IMA1987 s.p.) 8.BL.05
    (IUPAC: lead triiron(III) hexahydro sulfate phosphate)
91. Cornetite (Y: 1912) 8.BE.15
    (IUPAC: tricopper trihydro phosphate)
92. Cornubite (IMA1962 s.p., 1959) 8.BD.30
    (IUPAC: pentacopper tetrahydro diarsenate)
93. Cornwallite (Y: 1847) 8.BD.05
    (IUPAC: pentacopper tetrahydro diarsenate)
94. Coronadite (hollandite, coronadite: 1904) 4.DK.05a
    (IUPAC: lead hexamanganese(IV) dimanganese(II) hexadecaoxide)
95. Correianevesite (reddingite: IMA2013-007) 8.0 [no] [no]
    (IUPAC: iron(II) dimanganese(II) diphosphate trihydrate)
96. Corrensite (Y: 1954) 9.EC.60
    1. Low layer charge corrensite (LLC): 1:1 regular interstratification of a trioctahedral chlorite with a trioctahedral vermiculite
    2. High layer charge corrensite (HLC): 1:1 regular interstratification of a trioctahedral chlorite with a trioctahedral smectite
97. Cortesognoite (lawsonite: 2014-029) 9.0 [no] [no]
    (IUPAC: calcium divanadium heptaoxy disilicate dihydroxyl hydrate)
98. Corundum (Y: old/ 1714?) 4.CB.05
    (IUPAC: dialuminium trioxide)
99. Corvusite (straczekite: 1933) 4.HE.20
100. Cosalite (Y: 1868) 2.JB.10
     (IUPAC: dilead pentasulfa dibismuthide)
     Note: Cu and Ag might substitute some Pb (Topa, D. and Makovicky, E., 2010).
101. Coskrenite-(Ce) (sulfate-oxalate: IMA1996-056) 10.AB.65
     (IUPAC: dicerium disulfate oxalate octahydrate)
102. Cossaite (IMA2009-031) 7.0 [no]
103. Costibite (löllingite: IMA1969-014) 2.EB.10d
     (IUPAC: cobalt antimonide sulfide)
104. Cotunnite (Y: 1825) 3.DC.85
     (IUPAC: lead(II) chloride)
105. Coulsonite (spinel, spinel: IMA1962 s.p. Rd) 4.BB.05
     (IUPAC: iron(II) divanadium(III) tetraoxide)
106. Cousinite^Q (Y: 1954) 7.HA.10 [no]
     Note: incomplete description, might be a Mg-umohoite.
107. Coutinhoite (IMA2003-025) 9.AK.30 [no]
108. Covellite (Y: 1832) 2.CA.05a
     (IUPAC: copper sulfide)
109. Cowlesite (zeolitic tectosilicate: IMA1975-016) 9.GG.05
     (Ca(Al₂Si₃)O₁₀·(5-6)H₂O)
110. Coyoteite (IMA1978-042) 2.FD.25
     (IUPAC: sodium triiron pentasulfide dihydrate)

Cr – Cy

1. Crandallite (alunite, crandallite: IMA1999 s.p., 1917 Rd) 8.BL.10
   (IUPAC: calcium trialuminium hexahydro phosphate hydroxophosphate)
2. Cranswickite (IMA2010-016) 7.CB.15 [no] [no]
   (IUPAC: magnesium sulfate tetrahydrate)
3. Crawfordite (bradleyite: IMA1993-030) 5.BF.10
   (IUPAC: trisodium strontium phosphate carbonate)
4. Creaseyite (IMA1974-044) 9.HH.15
5. Crednerite (Y: 1849) 4.AB.05
   (IUPAC: copper(II) manganese(II) dioxide)
6. Creedite (Y: 1916) 3.CG.15
   (IUPAC: tricalcium dialuminium dihydro sulfate octafluoride dihydrate)
7. Crerarite (rocksalt, galena: IMA1994-003) 2.LB.45
8. Crichtonite (crichtonite: IMA1980 s.p., 1814) 4.CC.40
9. Criddleite (IMA1987-037) 2.LA.25
10. Crimsonite (carminite: IMA2014-095) 8.0 [no] [no]
    (IUPAC: lead diiron(III) dihydro diphosphate)
11. Cristobalite (cristobalite: 1887) 4.DA.15
    (IUPAC: dioxosilicate)
12. Crocobelonite (IMA2020-005) 8.0 [no] [no]
13. Crocoite (monazite: 1763) 7.FA.20
    (IUPAC: lead(II) chromate)
14. Cronstedtite (serpentine: 1821) 9.ED.15
15. Cronusite (IMA1999-018) 2.FB.05
    (Ca_0.2CrS₂·2H₂O)
16. Crookesite (Y: 1867) 2.BD.50
    (IUPAC: heptacopper thallium tetraselenide)
17. Crowningshieldite (IMA2018-072) 2.0 [no] [no]
    ((Ni_0.9Fe_0.10)S)
18. Cryobostryxite (IMA2014-058) 3.0 [no] [no]
    (IUPAC: potassium zinc trichloride dihydrate)
19. Cryolite (double perovskite: 1799) 3.CB.15
    (IUPAC: trisodium hexafluoroaluminate)
20. Cryolithionite (garnet: 1904) 3.CB.05
    (Na₃Al₂(LiF₄)₃)
21. Cryptochalcite (cryptochalcite: IMA2014-106) 7.0 [no] [no]
    (IUPAC: dipotassium pentacopper oxopentasulfate)
22. Cryptohalite (fluorosilicate: 1872) 3.CH.15
    (IUPAC: diammonium hexafluorosilicate)
23. Cryptomelane (hollandite, coronadite: IMA1982 s.p.?, 1942) 4.DK.05a
    (K((Mn⁴⁺)₇Mn³⁺)O₁₆)
24. Cryptophyllite (IMA2008-061) 9.0
    (IUPAC: dipotassium calcium decaoxytetrasilicate pentahydrate)
25. Cualstibite (hydrotalcite: IMA1983-068 Rd) 4.FB.10
    (IUPAC: dicopper aluminium hexahydroxide [antimony hexahydroxide])
26. Cuatrocapaite
    1. Cuatrocapaite-(K) (IMA2018-084) 4.0 [no] [no]
    2. Cuatrocapaite-(NH4) (IMA2018-083) 4.0 [no] [no]
27. Cubanite (cubanite: 1843) 2.CB.55a
    (IUPAC: copper diiron trisulfide)
28. Cuboargyrite (rocksalt, galena: IMA1997-004) 2.JA.15
    (IUPAC: silver disulfa antimonide)
29. Cumengeite (IMA2007 s.p., 1893) 3.DB.20
    (Pb₂₁Cu₂₀Cl₄₂(OH)₄₀·6H₂O)
30. Cummingtonite [Mg-Fe-Mn-amphibole: IMA2012 s.p., 1824] 09.DE.05
31. Cupalite (alloy: IMA1983-084) 1.AA.20
    (IUPAC: copper aluminide)
32. Cuprite (Y: 1845) 4.AA.10
    (IUPAC: dicopper(I) oxide)
33. Cuproauride^Q (Y: 1939) 1.AA.10a [no] [no]
    (IUPAC: tricopper gold alloy)
    Note: it might be auricupride.
34. Cuprobismutite (Y: 1884) 2.JA.10a
    (Cu₈AgBi₁₃S₂₄)
35. Cuprocopiapite (copiapite: 1938) 7.DB.35
    (IUPAC: copper tetrairon dihydro hexasulfate icosahydrate)
36. Cuproiridsite (spinel, linnaeite: IMA1984-016) 2.DA.05
    (IUPAC: copper diiridium tetrasulfide)
37. Cuprokalininite (spinel, linnaeite: IMA2010-008) 2.DA.05 [no]
    (IUPAC: copper dichromium tetrasulfide)
38. Cupromakopavonite (pavonite: IMA2005-036) 2.JA.05a [no] [no]
    (Cu₈Pb₄Ag₃Bi₁₉S₃₈)
39. Cupromakovickyite (pavonite: IMA2002-058) 2.JA.05d
    (Cu₄AgPb₂Bi₉S₁₈)
40. Cupromolybdite (vergasovaite: IMA2011-005) 7. [no]
    (IUPAC: tricopper(II) oxo dimolybdate)
41. Cuproneyite (neyite: IMA2008-053) 2.JB.25i [no] [no]
    (Cu₇Pb₂₇Bi₂₅S₆₈)
42. Cupropavonite (pavonite: IMA1978-033) 2.JA.05a
    (Cu_0.9Ag_0.5Pb_0.6Bi_2.5S₅)
43. Cupropearceite (pearceite-polybasite: IMA2007-046) 2.GB.15 [no]
    ([Cu₆As₂S₇][Ag₉CuS₄])
44. Cupropolybasite (pearceite-polybasite: IMA2008-004) 2.GB.15 [no]
    ([Cu₆Sb₂S₇][Ag₉CuS₄])
45. Cuprorhodsite (spinel, linnaeite: IMA2017-H, IMA1984-017) 2.DA.05
    (((Cu¹⁺⁾_0.5(Fe³⁺⁾_0.5)(Rh³⁺)₂S₄)
46. Cuprorivaite (gillespite: IMA1962 s.p., 1938 Rd) 9.EA.05
    (IUPAC: calcium copper decaoxy tetrasilicate)
47. Cuprosklodowskite (Y: 1933) 9.AK.10
    (IUPAC: copper diuranyl di(hydrotrioxysilicate) hexahydrate)
48. Cuprospinel (spinel, spinel: IMA1971-020) 4.BB.05
    (IUPAC: copper(II) diiron(III) tetraoxide)
49. Cuprostibite (metalloid alloy: 1969) 2.AA.20
    (IUPAC: dicopper (antimony,thallium))
50. Cuprotungstite (Y: 1869) 7.GB.15
    (IUPAC: tricopper(II) dihydro ditungstate)
51. Curetonite (laueite, laueite: IMA1978-065) 8.BK.15
    (Ba(Al,Ti)(PO₄)(OH,O)F)
52. Curienite (fritzscheite: IMA1967-049) 4.HB.15
    (IUPAC: lead diuranyl divanadate pentahydrate)
53. Curite (Y: 1921) 4.GB.55
54. Currierite (IMA2016-030) 8.0 [no] [no]
    (Na₄Ca₃MgAl₄(AsO₃OH)₁₂·9H₂O)
55. Cuspidine (woehlerite: 1876) 9.BE.17
    (IUPAC: octacalcium tetrafluoro heptaoxydisilicate)
56. Cuyaite (IMA2019-126) 4.0 [no] [no]
57. Cuzticite (tellurium oxysalt: IMA1980-071) 4.FM.35
    (IUPAC: diiron(II) tellurium(VI) hexaoxide trihydrate)
58. Cyanochroite (picromerite: 1855) 7.CC.60
    (IUPAC: dipotassium copper disulfate hexahydrate)
59. Cyanotrichite (cyanotrichite: IMA1967 s.p., 1839) 7.DE.10
    (IUPAC: tetracopper dialuminium dodecahydro sulfate diwater)
60. Cylindrite (cylindrite: 1893) 2.HF.25a
    (IUPAC: iron tripalladium tetratin tetrasulfa diantimonide)
61. Cymrite (Y: 1949) 9.EG.05
62. Cyprine (vesuvianite: IMA2015-044) 9.BG.35 [no] [no]
63. Cyrilovite (wardite: 1953) 8.DL.10
    (IUPAC: sodium triiron(III) tetrahydro diphosphate dihydrate)
64. Czochralskiite (aphthitalite: IMA2015-011) 8.0 [no] [no]
    (IUPAC: tetrasodium tricalcium magnesium tetraphosphate)

External links

• IMA Database of Mineral Properties/ RRUFF Project
• Mindat.org - The Mineral Database
• Webmineral.com
• Mineralatlas.eu minerals C