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Beudantite
Beudantite

Andalusite
Andalusite



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Beudantite
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Andalusite

Beudantite and Andalusite Optical Properties

Optical Properties

Luster

Vitreous, Resinous
Vitreous, Greasy

Pleochroism

visible
strongly trichroic

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

-
Transparent, Translucent

Refractive Index

1.9571.627-1.650
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
Orthorhombic

Birefringence

0.0140.009-0.010
0 0.296
👆🏻

Clarity

-
Transparent

Beudantite and Andalusite Optic Character

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

Beudantite and Andalusite Transparency

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