
Cobaltian calcite

| Composition | (Ca Co)CO3 Carbonato de Calcio con Cobalto | Crystal system | trigonal |
|
Hardness (Moh´s) |
3 | Density | variable 2,69 +++ |
| Refractive index | 1,486 - 1,658 | Birefringence | 0,172 |
|
Pleocroisme |
- | Fluorescence | |
|
Fracture |
concoidal | I. Dispertion | 0,010 aprox. |
|
Cleavage |
perfect | Streak | white |
| Absortion: | |||
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