Calcite 9 labradorite - Aventurine quartz (aventurine) when

- Aventurine quartz (aventurine) when it has a sparkling effect linked to the presence of inclusions

Ce quartz microcristallisé  peut avoir un coeur de couleur différentes

033Filtre chelsea: Rose (seulement pour les tourmalines chromifères)Spectre: Non observable / non diagnostiqueDifférents pays ou peut-être extraite la tourmaline noire: Brésil

Dimensions approximatives: 30

Calcite 9 labradorite - Aventurine quartz (aventurine) whenCalcite cabochon. Color: Beige and brown Shape: Oval Size: 42. 75 x 29. 35mm Weight in grams: 14. 34g Carat weight: 71. 70 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