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Les couleurs sont liées à la présente d'inclusions de limonite ou de goethite
Crystal system: Monoclinic Breakage: Splinter Cleavage: Imperfect Polariscope: Anisotropic (constantly restores) Refractive index: 1
52mm de diamètre
Carat weight: 31
5 et 7Système cristallin: Trigonal / microscristallinCassure: Subconchoïdale
Préhnite 15 unakite Les couleurs sont liées àPrehnite cabochon with some episode inclusions. Color: Green and some black Shape: Square Size: 21. 79 x 21. 11mm Weight in grams: 7. 52g Carat weight: 37. 60 carat Country of origin: Mali Gemological information about prehnite: Possible colors: Colorless, white, green, yellow, brown Density: between 2. 80 and 2. 95 Hardness: between 6 and 6. 5 Crystal system: Orthorhombic Breakage: Irregular Cleavage: Distinct Polariscope: Anisotropic Refractive
US$ 1350.50
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