Perles en malachite Carré facetté Number of pearls on a

Number of pearls on a 6mm row: Between 72 and 74

Sizes: 15 x 17mm

Officiellement fait parti du groupe des feldspath

Filtre chelsea: Généralement pas de modification

Taille: 4mm

Perles en malachite Carré facetté Number of pearls on aMalachite beads. Color: Light green to dark green zoning Size: 7 8mm 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: Np: 1. 655 Nm: 1. 875 Ng: 1. 909 Birefringence: 0. 254 Chelsea Filter: No