AT A GLANCE
Diaphaneity:
Refractive Index:
Luster:
Mohs Hardness:
Transparent – Translucent
1.716 – 1.731
Vitreous
4.5 – 7.0
MORE INFORMATION
Color Range:
Light To Dark Blue To Green; Zoned With Blue, Green, Colorless Bands
Major Sources:
Nepal, Brazil, Kenya, Switzerland, Yugoslavia, India, Myanmar, Kenya, Australia, United States