BERYL
Species: Beryl
Mohs Hardness: 7.5 to 8 out of 10 Color: Occurs in many colors including green, yellow, greenish yellow, blue, blue-green, red, pink and colorless. RI: Depends on variety Birefringence: Depends on variety SR/DR/AGG: DR Clarity Type: Type I (Heliodor), Type III (Emerald, Green Beryl & Bixbite) Pleochroism: Depends on variety Spectrum: Not diagnostic Fluorescence: Variable, not diagnostic SG: Depends on variety Routine Treatments: Heating Additional Enhancements: Irradiation |