Sincosite
Sincosite is a green mineral discovered in 1922. It is named for Sincos, Daniel Alcides Carrión Province, Peru, where it was first discovered.[1]
| Sincosite | |
|---|---|
 Sincosite with an associated spray of white, acicular minyulite; from Ross Hannibal Mine, South Dakota, US | |
| General | |
| Category | Vanadate minerals |
| Formula (repeating unit) | CaV2(PO4)2O2 . 5H2O |
| Strunz classification | 8.CJ.65 |
| Crystal system | Tetragonal |
| Crystal class | Ditetragonal dipyramidal (4/mmm) H-M symbol: (4/m 2/m 2/m) |
| Space group | P42/nnm |
| Identification | |
| Tenacity | Brittle |
| Mohs scale hardness | 1 - 2 |
| Luster | Vitreous, Pearly, Sub-Metallic, Dull |
| References | [1] |
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