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Mexican fire opal
Mexican fire opal

Sinhalite
Sinhalite



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Mexican fire opal
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Sinhalite

Mexican fire opal and Sinhalite Optical Properties

Optical Properties

Luster

-
-

Pleochroism

-
Trichroism: green light brown dark brownHerve Nicolas Lazzarelli

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

-99991.665-1.712
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

-99990.036-0.042
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Mexican fire opal and Sinhalite Optic Character

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

Mexican fire opal and Sinhalite Transparency

Similar to their colors, Mexican fire opal and Sinhalite 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, Mexican fire opal is while Mexican fire opal is in appearance.