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- Quartz aventuriné (aventurine) lorsqu'il présente un effet scintillant lié à la présence d'inclusions
Size: 12mm
5 Crystal system: Orthorhombic Fracture: Irregular
Possible colors: Blueish gray with two more or less distinct color varieties
) Shape: Oval Size: 31
Malachite 81 améthyste lila - Quartz aventuriné (aventurine) lorsqu'ilMalachite cabochon. Color: Light green to dark green zoning Shape: Drop Size: 34. 18 x 18. 96mm Weight in grams: 8. 34g Carat weight: 41. 73 carat Country of origin: Congo Gemological information about malachite: Possible color: Light green to dark green with zoning Density: Between 3. 60 and 4. 05 Hardness: Between 3. 5 and 4 Crystal system: Monoclonic Fracture: Subconchoidal to coarse grained Cleavage: Perfect Polariscope: Opaque Refractive index:
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