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Moissanite
Moissanite

Common Opal
Common Opal



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Moissanite
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Common Opal

Moissanite and Common Opal Optical Properties

Optical Properties

Luster

Adamantine
-

Pleochroism

-
-

Dispersion

0.100.01
0.005 1
👆🏻

Transparency

-
Translucent

Refractive Index

2.648-2.6911.37-1.52
1 3.25
👆🏻

Optic Character

-
-

Crystal System

6H polytype
-

Birefringence

0.043-9999
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Moissanite and Common Opal Optic Character

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

Moissanite and Common Opal Transparency

Similar to their colors, Moissanite and Common 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, Moissanite is while Moissanite is in appearance.