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:
 
Gems list
Principal
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Cabaltian calcite
 
     

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