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Axinite
Axinite

Vesuvianite Idocrase
Vesuvianite Idocrase



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Axinite
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Vesuvianite Idocrase

Axinite and Vesuvianite Idocrase Optical Properties

Optical Properties

Luster

Vitreous
-

Pleochroism

Strong
-

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.656-1.7041.700-1.725
1 3.25
👆🏻

Optic Character

Biaxial/+
Uniaxial/-

Crystal System

Triclinic
-

Birefringence

0.009-0.0120.002-0.012
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Axinite and Vesuvianite Idocrase Optic Character

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

Axinite and Vesuvianite Idocrase Transparency

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