Calcite 3 gris 95 carat Country of origin:

95 carat Country of origin: South Africa Gemological information about amethyst: Possible color: Blue-mauve

Les traitements qui existent pour modifier de l'aigue-marine:

73mm Weight in grams: 19

Color: Light green to dark green zoning

Charoite cabochon

Calcite 3 gris 95 carat Country of origin:Calcite cabochon. Color: Beige and brown Shape: Oval Size: 53. 79 x 32. 88mm Weight in grams: 21. 52g Carat weight: 107. 60 carat Country of origin: Peru Gemological information about calcite: Possible colors: Colorless, white, yellow, green, blue, red, orange, brown, gray, black, magenta Density: Between 2. 60 and 2. 80 Hardness: 3 Crystal system: Trigonal Fracture: Conchoidal Cleavage: Perfect Polariscope: Anisotropic, restores every 90, except in