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Boleite
Boleite

Andalusite
Andalusite



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Boleite
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Andalusite

Boleite and Andalusite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous, Greasy

Pleochroism

-
strongly trichroic

Dispersion

0.070.02
0.005 1
👆🏻

Transparency

Transparent
Transparent, Translucent

Refractive Index

2.051.627-1.650
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Isometric
Orthorhombic

Birefringence

0.0100.009-0.010
0 0.296
👆🏻

Clarity

Transparent
Transparent

Boleite and Andalusite Optic Character

Boleite and Andalusite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Boleite and Andalusite Physical Properties like crystallographic symmetry, pleochroism,etc. in the crystal. Some of the optical properties are refractive index, luster, optic character, pleochroism etc. Prominent among these is Boleite and Andalusite optic character. You might have noticed your gemologist rotating the gemstone while testing it. Rotating a gemstone along its optic axis helps in determining its optic character.

Boleite and Andalusite Transparency

Similar to their colors, Boleite and Andalusite transparency can also be used as criteria for their primary identification. Although transparency cannot be the only criteria for gemstone identification, it can efficiently used in gemstone grading. Talking about their transparency, Boleite is Transparent while Boleite is Transparent in appearance.