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saccharoïdeClivage: AucunPolariscope: AnisotropeIndice de réfraction: Entre 1
Informations gemmologiques sur l'astrophyllite:
559 Birefringence: 0
80 Hardness: 3 Crystal system: Trigonal Fracture: Conchoidal Cleavage: Perfect Polariscope: Anisotropic
Indonésie
VENDU Pierre de soleil 13 lapis-lazuli saccharoïdeClivage: AucunPolariscope: AnisotropeIndice de réfraction:Sunstone cabochon. Color: Orange with a shimmering effect Shape: Drop Size: 33. 70 x 19. 94mm Weight in grams: 6. 63g Carat weight: 33. 16 carat Country of origin: Australia Gemological information on sunstone Note: The name sunstone is a trade name. Officially part of the feldspar group. In the plaglioclase, soda lime or potassic series. The iridescent effect is linked to the presence of inclusions: hematite, copper and goethite. Possible color:
