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Albite
Albite

Andalusite
Andalusite



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Albite
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Andalusite

Albite and Andalusite Optical Properties

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Optical Properties

Luster

Vitreous, Pearly
Vitreous, Greasy

Pleochroism

colorless.
strongly trichroic

Dispersion

1.000.02
0.005 1
👆🏻

Transparency

Transparent, Translucent
Transparent, Translucent

Refractive Index

1.525-1.5421.627-1.650
1 3.25
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Optic Character

-
-

Crystal System

Triclinic
Orthorhombic

Birefringence

0.008-0.0110.009-0.010
0 0.296
👆🏻

Clarity

Transparent
Transparent

Albite and Andalusite Optic Character

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

Albite and Andalusite Transparency

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