Kyanite

Switzerland, Ticino Canton, Leventina (Sponda Mountain)

Identifier: 34964
Refractive Index: 1.7210
Specific Gravity: 3.78
Optical Character: Biaxial −
Pleochroism: Violetish blue / Grayish blue
Luster: Vitreous

SUN

I

F

LED

Absorption Depth

0.1

0.3

0.6

1.0

1.5

2.5

4.0

Absorption Spectrum