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Elaeolite
Elaeolite

Opal
Opal



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Elaeolite
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Opal

Elaeolite and Opal Optical Properties

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Optical Properties

Luster

Greasy
Vitreous, Pearly

Pleochroism

-
None

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

-
Transparent, Translucent, Transparent to translucent

Refractive Index

-99991.37-1.52
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Trigonal

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

-
Transparent

Elaeolite and Opal Optic Character

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

Elaeolite and Opal Transparency

Similar to their colors, Elaeolite and 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, Elaeolite is while Elaeolite is in appearance.