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Pyrope
Pyrope

Realgar
Realgar



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Pyrope
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Realgar

Pyrope and Realgar Optical Properties

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Optical Properties

Luster

Greasy, Vitreous
-

Pleochroism

None
Nearly colorless to pale golden yellowAnthony et al

Dispersion

0.020.06
0.005 1
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Transparency

-
-

Refractive Index

1.720-1.7562.538-2.704
1 3.25
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Optic Character

-
-

Crystal System

cubic
-

Birefringence

-99990.166
0 0.296
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Clarity

TransparentUlrich Henn and Claudio C. Milisenda
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Pyrope and Realgar Optic Character

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

Pyrope and Realgar Transparency

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