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Biréfringence: Polycristallin
NamibieLa malachite peut-être confondue avec:- Pâte de verre- Plastique- Résine- Turquoise "morte"- Malachite synthétiqueLes traitements qui existent pour modifier la malachite:- Résine- On fait également de la malachite reconstituée en la compressant
Pyrite can be confused with:
48mm Weight in grams: 13
Garnierite is more commonly considered a rock
Perles en apatite jaune entre 4 et 8-9mm Sizes:6mm Biréfringence: PolycristallinApatite beads. Color: Yellow Sizes between 4 and 8 9mm Country of origin: Mexico Treatment: Polymer impregnation (does not affect the color) which helps to consolidate the stone. Gemological information about apatite: Possible color: Colorless, yellow, green, blue, purple, pink Density: between 3. 16 and 3. 28 Hardness: 5 Crystal system: Hexagonal Fracture: Subconchoidal, uneven Cleavage: Imperfect Polariscope: Anisotropic (restores all 90, except in
