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Realgar
Realgar

Vesuvianite Idocrase
Vesuvianite Idocrase



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Realgar
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Vesuvianite Idocrase

Realgar and Vesuvianite Idocrase Optical Properties

Optical Properties

Luster

-
-

Pleochroism

Nearly colorless to pale golden yellowAnthony et al
-

Dispersion

0.060.02
0.005 1
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Transparency

-
Transparent

Refractive Index

2.538-2.7041.700-1.725
1 3.25
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Optic Character

-
Uniaxial/-

Crystal System

-
-

Birefringence

0.1660.002-0.012
0 0.296
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Clarity

-
Transparent

Realgar and Vesuvianite Idocrase Optic Character

Realgar and Vesuvianite Idocrase optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Realgar and Vesuvianite Idocrase 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 Vesuvianite Idocrase 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. Vesuvianite Idocrase has Uniaxial/- character.

Realgar and Vesuvianite Idocrase Transparency

Similar to their colors, Realgar and Vesuvianite Idocrase 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.