Pierre de lune 79 Diamant Birefringence: None Chelsea Filter: Inert

Birefringence: None Chelsea Filter: Inert Spectrum: Not visible Different countries where green common opal may be mined: Madagascar

il peut décolorer et laisser des traces jaunes dans le trou de perçage qui traverse les pierres

Number of pearls on a row of 8mm: 49-50

5 Crystal system: Triclinic Breakage: Irregular Cleavage: Perfect Polariscope: Anisotropic Refractive index: Np: 1

Color: Green with discreet perthitic structure Shape: Oval Size: 40

Pierre de lune 79 Diamant Birefringence: None Chelsea Filter: InertMoonstone cabochon. Color: White Shape: Drop Size: 33. 84 x 22. 95mm Weight in grams: 6. 76g Carat weight: 33. 83 carat Country of origin: India Gemological information about moonstone: Note: The name moonstone is a trade name. Officially part of the feldspar group. This is the name generally given to orthoclase. But some feldspars can also inherit this name when they exhibit adularescence, this is the case for example of oligoclase, labradorite,