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Realgar
Realgar

Scheelite
Scheelite



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Realgar
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Scheelite

Realgar and Scheelite Optical Properties

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Optical Properties

Luster

-
Vitreous, Adamantine

Pleochroism

Nearly colorless to pale golden yellowAnthony et al
Definite dichoric in yellow (yellow to orange-brown)

Dispersion

0.060.04
0.005 1
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Transparency

-
Translucent, Transparent

Refractive Index

2.538-2.7041.918-1.936
1 3.25
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Optic Character

-
-

Crystal System

-
tetragonal

Birefringence

0.1660.016
0 0.296
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Clarity

-
Translucent

Realgar and Scheelite Optic Character

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

Realgar and Scheelite Transparency

Similar to their colors, Realgar 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, Realgar is while Realgar is in appearance.