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Pyrope
Pyrope

Agrellite
Agrellite



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Pyrope
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Agrellite

Pyrope and Agrellite Optical Properties

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Optical Properties

Luster

Greasy, Vitreous
Pearly

Pleochroism

None
colorless.

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.720-1.7561.567
1 3.25
👆🏻

Optic Character

-
-

Crystal System

cubic
Triclinic

Birefringence

-99990.014
0 0.296
👆🏻

Clarity

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

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

Similar to their colors, Pyrope and Agrellite 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.