Tourmaline

Elbaite

Namibia, Erongo Region (Karibib District), Karibib

Identifier: 34239
Refractive Index: 1.6350
Specific Gravity: 3.07
Optical Character: Uniaxial −
Pleochroism: (Blue) Green / Bluish green; (Red-Orange) Brownish yellow / Brownish red
Luster: Vitreous

SUN

LED

Absorption Depth

0.1

0.3

0.6

1.0

1.5

2.5

4.0