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Realgar
Realgar

Pollucite
Pollucite



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Realgar
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Pollucite

Realgar and Pollucite Optical Properties

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Optical Properties

Luster

-
Vitreous, Greasy

Pleochroism

Nearly colorless to pale golden yellowAnthony et al
-

Dispersion

0.060.01
0.005 1
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Transparency

-
Transparent, Translucent

Refractive Index

2.538-2.7041.517-1.525
1 3.25
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Optic Character

-
-

Crystal System

-
Isometric

Birefringence

0.166-9999
0 0.296
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Clarity

-
Transparent

Realgar and Pollucite Optic Character

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

Similar to their colors, Realgar and Pollucite 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.