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Vanadinite
Vanadinite

Sogdianite
Sogdianite



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Vanadinite
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Sogdianite

Vanadinite and Sogdianite Optical Properties

Optical Properties

Luster

Resinous
-

Pleochroism

-
-

Dispersion

0.150.01
0.005 1
👆🏻

Transparency

-
-

Refractive Index

2.4161.606-1.608
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
-

Birefringence

0.0660.002
0 0.296
👆🏻

Clarity

-
OpaqueUlrich Henn and Claudio C. Milisenda

Vanadinite and Sogdianite Optic Character

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

Vanadinite and Sogdianite Transparency

Similar to their colors, Vanadinite and Sogdianite 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, Vanadinite is while Vanadinite is in appearance.