CHRYSOBERYL
Species: Chrysoberyl
Mohs Hardness: 8.5 out of 10 Color: Non-phenomenal chrysoberyl occurs in various colors, but is commonly yellow to yellowish green, bluish green, brownish green. May show phenomena such as cat's eye or color change RI: 1.746 to 1.755 (+0.004 / -0.006) Birefringence: 0.008 to 0.010 SR/DR/AGG: DR Clarity Type: Type I Optic Character: Biaxial positive Pleochroism: Depends on variety Spectrum: Not diagnostic Fluorescence: Depends on variety SG: 3.73 (+/- 0.02) Routine Treatments: None |