Préhnite 22 anhydrite A savoir: Il existe deux

A savoir: Il existe deux types d'opale: noble (aussi appelé précieuse) et commune

Treatments that exist to modify common pink opal:

Country of origin: Kenya

Color: Purple Shape: Oval Size: 43

Préhnite 22 anhydrite A savoir: Il existe deuxPrehnite cabochon with some episode inclusions. Color: Green and some black Shape: Oval Size: 43. 22 x 22. 76mm Weight in grams: 11. 15g Carat weight: 55. 80 carat Country of origin: Mali Gemological information about prehnite: Possible colors: Colorless, white, green, yellow, brown Density: between 2. 80 and 2. 95 Hardness: between 6 and 6. 5 Crystal system: Orthorhombic Breakage: Irregular Cleavage: Distinct Polariscope: Anisotropic Refractive