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Common Opal
Common Opal

Vesuvianite Idocrase
Vesuvianite Idocrase



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Common Opal
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Vesuvianite Idocrase

Common Opal and Vesuvianite Idocrase Optical Properties

Optical Properties

Luster

-
-

Pleochroism

-
-

Dispersion

0.010.02
0.005 1
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Transparency

Translucent
Transparent

Refractive Index

1.37-1.521.700-1.725
1 3.25
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Optic Character

-
Uniaxial/-

Crystal System

-
-

Birefringence

-99990.002-0.012
0 0.296
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Clarity

Translucent
Transparent

Common Opal and Vesuvianite Idocrase Optic Character

Common Opal and Vesuvianite Idocrase optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Common Opal and Vesuvianite Idocrase 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 Common Opal and Vesuvianite Idocrase 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. Vesuvianite Idocrase has Uniaxial/- character.

Common Opal and Vesuvianite Idocrase Transparency

Similar to their colors, Common Opal and Vesuvianite Idocrase 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, Common Opal is Translucent while Common Opal is Translucent in appearance.