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Adularia
Adularia

Pearl
Pearl



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Adularia
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Pearl

Adularia and Pearl Optical Properties

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Optical Properties

Luster

-
Pearly

Pleochroism

-
-

Dispersion

0.010.03
0.005 1
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Transparency

TransparentArthur Thomas
Translucent, Opaque

Refractive Index

1.518-1.5361.52-1.66
1 3.25
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Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

0.005-0.0080.156
0 0.296
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Clarity

TransparentArthur Thomas
Translucent

Adularia and Pearl Optic Character

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

Similar to their colors, Adularia and Pearl 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.