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Bronzite
Bronzite

Andalusite
Andalusite



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Bronzite
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Andalusite

Bronzite and Andalusite Optical Properties

Optical Properties

Luster

-
Vitreous, Greasy

Pleochroism

-
strongly trichroic

Dispersion

0.020.02
0.005 1
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Transparency

Transparent, Translucent
Transparent, Translucent

Refractive Index

1.6681.627-1.650
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
Orthorhombic

Birefringence

0.0140.009-0.010
0 0.296
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Clarity

Transparent
Transparent

Bronzite and Andalusite Optic Character

Bronzite and Andalusite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Bronzite 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 Bronzite 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.

Bronzite and Andalusite Transparency

Similar to their colors, Bronzite 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, Bronzite is Transparent and Translucent while Bronzite is Transparent and Translucent in appearance.