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White Opal
White Opal

Almandine
Almandine



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White Opal
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Almandine

White Opal and Almandine Optical Properties

Optical Properties

Luster

-
Greasy, Vitreous

Pleochroism

-
None

Dispersion

0.010.03
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.37-1.521.770-1.820
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
cubic

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

Translucent
TransparentUlrich Henn and Claudio C. Milisenda

White Opal and Almandine Optic Character

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

White Opal and Almandine Transparency

Similar to their colors, White Opal and Almandine 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, White Opal is Translucent while White Opal is Translucent in appearance.