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58 Hardness: between 3
Zambia Amethyst can be confused with: - Glass - Synthetic quartz - Cracked quartz - Irradiated synthetic quartz - Irradiated synthetic ametrine - Purple scapolite - Cordierite - Fluorite - Kunzite - Spinel - Doublet email - Garnet / glass doublet Treatments that exist to modify amethysts: - Colorant
Carat weight: 20
75 Hardness: Between 6
79 caratPays d'origine: CongoInformations gemmologiques sur la malachite:Couleur possible: Vert clair à vert foncé avec zonationDensité: Entre 3
Ammonite noire 3 fleurs 58 Hardness: between 3Ammonite cabochon. Color: Black, White Shape: Drop Size: 55. 88 x 38. 25mm Weight in grams: 21. 16g Carat weight: 105. 80 carat Country of origin: India Gemological information about ammonite: Density: Between 2. 80 and 2. 95 Hardness: 4 Crystal system: Orthorhombic Cleavage: In many directions Polariscope: Anisotropic. Generally opaque, does not restore because unobservable. Spectrum: Indistinct
