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Omphacite
Omphacite

Vesuvianite Idocrase
Vesuvianite Idocrase



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Omphacite
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Vesuvianite Idocrase

Omphacite and Vesuvianite Idocrase Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

Weak: colorless -- very pale green -- very pale green
-

Dispersion

0.020.02
0.005 1
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Transparency

TranslucentAnthony et al
Transparent

Refractive Index

1.662-1.7231.700-1.725
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

TranslucentAnthony et al
Transparent

Omphacite and Vesuvianite Idocrase Optic Character

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

Omphacite and Vesuvianite Idocrase Transparency

Similar to their colors, Omphacite 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, Omphacite is TranslucentAnthony et al while Omphacite is TranslucentAnthony et al in appearance.