Zoisite

Tanzanite

Tanzania, Arusha Region, Lelatema Mountains (Merelani Hills)

Identifier: 35038
Refractive Index: 1.6950
Specific Gravity: 3.36
Optical Character: Biaxial +
Pleochroism: Brown / Reddish violet
Luster: Vitreous

SUN

I

F

LED

Absorption Depth

0.1

0.3

0.6

1.0

1.5

2.5

4.0

Absorption Spectrum