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Adularia
Adularia

Pargasite
Pargasite



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Adularia
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Pargasite

Adularia and Pargasite Optical Properties

Optical Properties

Luster

-
Vitreous

Pleochroism

-
-

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

TransparentArthur Thomas
Transparent

Refractive Index

1.518-1.5361.613-1.663
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
monoclinic

Birefringence

0.005-0.0080.020
0 0.296
👆🏻

Clarity

TransparentArthur Thomas
Transparent

Adularia and Pargasite Optic Character

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

Similar to their colors, Adularia and Pargasite 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.