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Moonstone
Moonstone

Zinnwaldite
Zinnwaldite



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Moonstone
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Zinnwaldite

Moonstone and Zinnwaldite Optical Properties

Optical Properties

Luster

Pearly
Pearly, Vitreous

Pleochroism

-
Distinct

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Transparent, Transparent to translucent
-

Refractive Index

1.518-1.5271.565-1.625
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
monoclinic

Birefringence

0.006-0.0070.040-0.050
0 0.296
👆🏻

Clarity

Transparent
-

Moonstone and Zinnwaldite Optic Character

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

Moonstone and Zinnwaldite Transparency

Similar to their colors, Moonstone and Zinnwaldite 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, Moonstone is Transparent and Transparent to translucent while Moonstone is Transparent and Transparent to translucent in appearance.