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this is the case for example of certain microclines
- Marcasite
Size: 2 x 3mm
Line in the Red at around 688 nm and Weak and broad band centered at around 650 nm
Nombre de perles sur un rang de 4mm: Entre 94 et 95 perles
VENDU Rhodonite 23 Rond facettée this is the case forRhodonite cabochon. Color: Pink Shape: Drop Size: 39. 60 x 36. 51mm Weight in grams: 16. 74g Carat weight: 83. 72 carat Country of origin: Brazil Gemological information about rhodonite: Density: Between 3. 40 and 3. 70 Hardness: Between 5. 5 and 6 Crystal system: Triclinic Fracture: Conchoidal, irregular, splintery Cleavage: Perfect Polariscope: Anisotropic (does not restore if opaque) Refractive index: No: 1. 711 to 1. 738 Nm: 1. 714 to 1. 741 Ng:
US$ 69.00
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US$ 118.00
