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Beryl
Beryl

Chromite
Chromite



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Beryl
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Chromite

Beryl and Chromite Optical Properties

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Optical Properties

Luster

Vitreous, Resinous
-

Pleochroism

Weak to distinct
none.

Dispersion

0.010.04
0.005 1
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Transparency

Transparent, Transparent to opaque
-

Refractive Index

1.560-1.6042.08-2.16
1 3.25
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Optic Character

-
-

Crystal System

Hexagonal
Isometric

Birefringence

0.0040-0.0070-9999
0 0.296
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Clarity

Transparent
-

Beryl and Chromite Optic Character

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

Beryl and Chromite Transparency

Similar to their colors, Beryl and Chromite 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, Beryl is Transparent and Transparent to opaque while Beryl is Transparent and Transparent to opaque in appearance.