Tourmaline

Elbaite

Brazil, Minas Gerais State, Itambacuri

Identifier: 34311
Refractive Index: 1.6350
Specific Gravity: 3.05
Optical Character: Uniaxial −
Pleochroism: (Yellowish-Green) Yellowish green / Green; (Purplish-Red) Brown / Reddish brown
Luster: Vitreous

SUN

LED

Absorption Depth

0.1

0.3

0.6

1.0

1.5

2.5

4.0