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Beryl
Beryl

Adamite
Adamite



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Beryl
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Adamite

Beryl and Adamite Optical Properties

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Optical Properties

Luster

Vitreous, Resinous
Vitreous

Pleochroism

Weak to distinct
-

Dispersion

0.010.06
0.005 1
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Transparency

Transparent, Transparent to opaque
Transparent

Refractive Index

1.560-1.6041.708-1.722
1 3.25
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Optic Character

-
Biaxial/+

Crystal System

Hexagonal
Orthorhombic

Birefringence

0.0040-0.00700.031-0.050
0 0.296
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Clarity

Transparent
Transparent

Beryl and Adamite Optic Character

Beryl and Adamite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Beryl and Adamite 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 Adamite 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. Adamite has Biaxial/+ character.

Beryl and Adamite Transparency

Similar to their colors, Beryl and Adamite 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.