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Friedelite
Friedelite

Pyrope
Pyrope



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Friedelite
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Pyrope

Friedelite and Pyrope Optical Properties

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Optical Properties

Luster

-
Greasy, Vitreous

Pleochroism

-
None

Dispersion

0.040.02
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.627-1.6631.720-1.756
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m
cubic

Birefringence

0.032-0.035-9999
0 0.296
👆🏻

Clarity

Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Friedelite and Pyrope Optic Character

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

Friedelite and Pyrope Transparency

Similar to their colors, Friedelite and Pyrope 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, Friedelite is Translucent while Friedelite is Translucent in appearance.