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Demantoid
Demantoid

Beudantite
Beudantite



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Demantoid
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Beudantite

Demantoid and Beudantite Optical Properties

Optical Properties

Luster

Adamantine
Vitreous, Resinous

Pleochroism

None
visible

Dispersion

0.060.03
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.880-1.8901.957
1 3.25
👆🏻

Optic Character

-
-

Crystal System

cubic
Trigonal

Birefringence

-99990.014
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
-

Demantoid and Beudantite Optic Character

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

Demantoid and Beudantite Transparency

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