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Blue spinel
Blue spinel

Vesuvianite
Vesuvianite



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Blue spinel
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Vesuvianite

Blue spinel and Vesuvianite Optical Properties

Optical Properties

Luster

-
Vitreous, Resinous

Pleochroism

-
slight in colored varieties

Dispersion

-0.03
0.005 1
👆🏻

Transparency

-
-

Refractive Index

-99991.703-1.752
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
tetragonal

Birefringence

-99990.004-0.006
0 0.296
👆🏻

Clarity

-
-

Blue spinel and Vesuvianite Optic Character

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

Blue spinel and Vesuvianite Transparency

Similar to their colors, Blue spinel and Vesuvianite 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, Blue spinel is while Blue spinel is in appearance.