Sillimanite

Sri Lanka, Sabaragamuwa Province, Eheliyagoda

Identifier: 34916
Refractive Index: 1.6635
Specific Gravity: 3.25
Optical Character: Biaxial +
Pleochroism: Pink / Greenish blue / Yellowish brown
Luster: Vitreous

SUN

I

F

LED

Absorption Depth

0.1

0.3

0.6

1.0

1.5

2.5

4.0

Absorption Spectrum