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Adamite
Adamite

Topaz
Topaz



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Adamite
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Topaz

Adamite and Topaz Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

-
Weak

Dispersion

0.060.01
0.005 1
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Transparency

Transparent
Transparent

Refractive Index

1.708-1.7221.606-1.644
1 3.25
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Optic Character

Biaxial/+
-

Crystal System

Orthorhombic
Orthorhombic

Birefringence

0.031-0.0500.008-0.011
0 0.296
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Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Adamite and Topaz Optic Character

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

Adamite and Topaz Transparency

Similar to their colors, Adamite and Topaz 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, Adamite is Transparent while Adamite is Transparent in appearance.