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Omphacite
Omphacite

Scheelite
Scheelite



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Omphacite
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Scheelite

Omphacite and Scheelite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Adamantine

Pleochroism

Weak: colorless -- very pale green -- very pale green
Definite dichoric in yellow (yellow to orange-brown)

Dispersion

0.020.04
0.005 1
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Transparency

TranslucentAnthony et al
Translucent, Transparent

Refractive Index

1.662-1.7231.918-1.936
1 3.25
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Optic Character

-
-

Crystal System

-
tetragonal

Birefringence

-99990.016
0 0.296
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Clarity

TranslucentAnthony et al
Translucent

Omphacite and Scheelite Optic Character

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

Omphacite and Scheelite Transparency

Similar to their colors, Omphacite and Scheelite 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, Omphacite is TranslucentAnthony et al while Omphacite is TranslucentAnthony et al in appearance.