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Bikolite
Bikolite

Andalusite
Andalusite



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Bikolite
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Andalusite

Bikolite and Andalusite Optical Properties

Optical Properties

Luster

-
Vitreous, Greasy

Pleochroism

-
strongly trichroic

Dispersion

-0.02
0.005 1
👆🏻

Transparency

-
Transparent, Translucent

Refractive Index

1.490-1.5201.627-1.650
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

-99990.009-0.010
0 0.296
👆🏻

Clarity

-
Transparent

Bikolite and Andalusite Optic Character

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

Bikolite and Andalusite Transparency

Similar to their colors, Bikolite 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, Bikolite is while Bikolite is in appearance.