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Ships within 48 hours · Estimated delivery Sep 14 - Sep 19
544 / Ne: 1
"chips" shape
Density: between 3 and 3
Different countries where obsidian may be mined: Armenia
23mmPoids en gramme: 7
Perles en iolite facettée entre 2 et 7mm Plat facetté 544 / Ne: 1Faceted iolite beads. Color: Dark blue Sizes between 2 and 7mm Country of origin: Brazil Gemological information about iolite: Possible color: Light to dark blue, gray to colorless purple Real name: Cordierite Density: Between 2. 57 and 2. 66 Hardness: 7. 5 Crystal system: Orthorhombic Fracture: Conchoidal Cleavage: Indistinct Polariscope: Anisotropic Refractive index: Np: 1. 530 to 1. 533 Nm: 1. 535 to 1. 561 Ng: 1. 538 to 1. 563 Birefringence: 0.
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