AT A GLANCE
Diaphaneity:
Refractive Index:
Luster:
Mohs Hardness:
Transparent – Translucent
1.718
Vitreous
7.5 – 8.0
MORE INFORMATION
Color Range:
Red And Pink To Blue To Mauve, Dark Green, Brown, Black
Major Sources:
Burma, Afghanistan, Pakistan, Sri Lanka, Cambodia, Vietnam, Tanzania, Thailand, Tajikistan, And Madagascar.