hessonite
Photo courtesy of Watchlink
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Variety: Hessonite
Species: Grossularite Group: Garnet Mohs Hardness: 6.5 to 7.5 out of 10 Color: Medium to dark orange to brownish orange RI: 1.740 (+0.020 / -0.010) Birefringence: None SR/DR/AGG: SR Clarity Type: Type II Pleochroism: None Spectrum: Not diagnostic Fluorescence: Yellow stones are inert to weak orange under LW and SW SG: 3.61 (+0.12 / - 0.04) Routine Treatments: None |