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Scheelite
Scheelite

Realgar
Realgar



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Scheelite
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Realgar

Scheelite and Realgar Optical Properties

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Optical Properties

Luster

Vitreous, Adamantine
-

Pleochroism

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

Dispersion

0.040.06
0.005 1
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Transparency

Translucent, Transparent
-

Refractive Index

1.918-1.9362.538-2.704
1 3.25
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Optic Character

-
-

Crystal System

tetragonal
-

Birefringence

0.0160.166
0 0.296
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Clarity

Translucent
-

Scheelite and Realgar Optic Character

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

Scheelite and Realgar Transparency

Similar to their colors, Scheelite and Realgar 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, Scheelite is Translucent and Transparent while Scheelite is Translucent and Transparent in appearance.