DEMANTOID
Variety: Demantoid
Species: Andradite Group: Garnet Mohs Hardness: 6.5 to 7 out of 10 Color: Green to yellow green, with strong fire RI: OTL Birefringence: None SR/DR/AGG: SR, often with ADR Clarity Type: Type II Pleochroism: None Spectrum: A dark band at 443nm in yellowish green stones, or a cutoff below 443nm with fine lines at 620nm, 632nm, 693nm, and 700nm in rich green stones Fluorescence: Inert Color Filter: Pinkish to inert SG: 3.84 (+/- 0.03) Routine Treatments: None |