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Cryolite
Cryolite

Vesuvianite Idocrase
Vesuvianite Idocrase



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Cryolite
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Vesuvianite Idocrase

Cryolite and Vesuvianite Idocrase Optical Properties

Optical Properties

Luster

Vitreous, Greasy, Pearly
-

Pleochroism

colorless.
-

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.338-1.3391.700-1.725
1 3.25
👆🏻

Optic Character

-
Uniaxial/-

Crystal System

monoclinic
-

Birefringence

0.0010.002-0.012
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Cryolite and Vesuvianite Idocrase Optic Character

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

Cryolite and Vesuvianite Idocrase Transparency

Similar to their colors, Cryolite 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, Cryolite is while Cryolite is in appearance.