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Beudantite
Beudantite

Sugilite
Sugilite



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Beudantite
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Sugilite

Beudantite and Sugilite Optical Properties

Optical Properties

Luster

Vitreous, Resinous
Vitreous

Pleochroism

visible
Weak

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

-
Translucent

Refractive Index

1.9571.607-1.612
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
Hexagonal

Birefringence

0.0140.003
0 0.296
👆🏻

Clarity

-
Translucent

Beudantite and Sugilite Optic Character

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

Similar to their colors, Beudantite and Sugilite 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.