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Pyrope
Pyrope

Mexican fire opal
Mexican fire opal



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Pyrope
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Mexican fire opal

Pyrope and Mexican fire opal Optical Properties

Optical Properties

Luster

Greasy, Vitreous
-

Pleochroism

None
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.720-1.756-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

cubic
-

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
-

Pyrope and Mexican fire opal Optic Character

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

Similar to their colors, Pyrope and Mexican fire opal 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.