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Namibia Malachite can be confused with: - Glass paste - Plastic - Resin - "Dead" turquoise - Synthetic malachite Treatments that exist to modify malachite: - Resin - Reconstituted malachite is also made by compressing it
Lodolite quartz is a quartz containing various inclusions
Afrique du Sud
It may contain other minerals or impurities that can create rich patterns
orangé jaune (tinaksite)
Perles en tourmaline noire, forme carré Acier inoxydable Namibia Malachite can be confusedBlack tourmaline beads in square cube shape. Color: Black Size: 4mm Country of origin: Madagascar Gemological information about tourmaline: Density: Between 2. 84 and 3. 40 Hardness: Between 7 and 7. 5 Crystal system: Trigonal Fracture: Subconchoidal to irregular Cleavage: None Polariscope: Anisotropic (restores all 90 except in the optical axis) Refractive index: Ne: 1. 603 to 1. 772 No: 1. 619 to 1. 778 Birefringence: 0. 013 to 0. 033 Chelsea
US$ 24.90
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US$ 39.00
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