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Pyrope
Pyrope

Franklinite
Franklinite



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Pyrope
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Franklinite

Pyrope and Franklinite Optical Properties

Optical Properties

Luster

Greasy, Vitreous
-

Pleochroism

None
-

Dispersion

0.020.19
0.005 1
👆🏻

Transparency

-
Translucent

Refractive Index

1.720-1.756-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

cubic
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Pyrope and Franklinite Optic Character

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

Similar to their colors, Pyrope and Franklinite 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.