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Schultenite
Schultenite

Tortoiseshell
Tortoiseshell



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Schultenite
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Tortoiseshell

Schultenite and Tortoiseshell Optical Properties

Optical Properties

Luster

Vitreous, Adamantine
-

Pleochroism

-
-

Dispersion

0.020.01
0.005 1
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Transparency

TransparentAnthony et al
-

Refractive Index

1.890-1.9761.540-1.560
1 3.25
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Optic Character

-
-

Crystal System

-
-

Birefringence

-9999-9999
0 0.296
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Clarity

TransparentAnthony et al
OpaqueUlrich Henn and Claudio C. Milisenda

Schultenite and Tortoiseshell Optic Character

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

Schultenite and Tortoiseshell Transparency

Similar to their colors, Schultenite and Tortoiseshell 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, Schultenite is TransparentAnthony et al while Schultenite is TransparentAnthony et al in appearance.