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Turquoise
Turquoise

Zinnwaldite
Zinnwaldite



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Turquoise
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Zinnwaldite

Turquoise and Zinnwaldite Optical Properties

Optical Properties

Luster

Waxy
Pearly, Vitreous

Pleochroism

Weak
Distinct

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

Translucent, Opaque
-

Refractive Index

1.610-1.6501.565-1.625
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Triclinic
monoclinic

Birefringence

0.0400.040-0.050
0 0.296
👆🏻

Clarity

Translucent
-

Turquoise and Zinnwaldite Optic Character

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

Turquoise and Zinnwaldite Transparency

Similar to their colors, Turquoise 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, Turquoise is Translucent and Opaque while Turquoise is Translucent and Opaque in appearance.