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Ships within 48 hours · Estimated delivery Aug 22 - Aug 27
Reserve from the case
Ships within 48 hours · Estimated delivery Aug 22 - Aug 27
Country of origin: United States (Oregon)
Les agrégats noirs sont constitués d'aiguilles d'amphiboles (composition de riebeckite à paragasite)
brittle Cleavage: Along the faces of the octahedron Polariscope: Isotropic
Gemological information on yellow calcite:
Gemological information on charoite:
VENDU Hypersthène 6 bleu Country of origin: United StatesHypersthene cabochon. Color: Grey Shape: Oval Size: 37. 04 x 21. 05mm Weight in grams: 6. 38g Carat weight: 31. 93 carat Country of origin: Canada Gemological information on hypersthene: Possible color: Gray, green, brown, black Density: Between 3. 43 and 3. 90 Hardness: Between 5 and 6 Crystal system: Orthorombic Breakage: Irregular Cleavage: Perfect Polariscope: Anisotropic Refractive index: np: 1. 686 to 1. 755 nm: ? ng: 1. 703 to 1. 772
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