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Ships within 48 hours · Estimated delivery Sep 13 - Sep 18
Biréfringence: 0
Poids d'un rang: Environ 157g
Carat weight: 57
Indice de réfraction: Entre 1
Indice de réfraction: Np: 1
Perles en malachite pierre de lune pêche Biréfringence: 0Malachite beads. Color: Light green to dark green zoning Size: 7. 5 8mm Country of origin: Congo Number of beads: Approximately 111 Weight of one row: Approx: 52g 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: Np: 1. 655
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