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Adularia
Adularia

Topaz
Topaz



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Adularia
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Topaz

Adularia and Topaz Optical Properties

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Optical Properties

Luster

-
Vitreous

Pleochroism

-
Weak

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

TransparentArthur Thomas
Transparent

Refractive Index

1.518-1.5361.606-1.644
1 3.25
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Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

0.005-0.0080.008-0.011
0 0.296
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Clarity

TransparentArthur Thomas
TransparentUlrich Henn and Claudio C. Milisenda

Adularia and Topaz Optic Character

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

Adularia and Topaz Transparency

Similar to their colors, Adularia 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, Adularia is TransparentArthur Thomas while Adularia is TransparentArthur Thomas in appearance.