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Brookite
Brookite

Vesuvianite
Vesuvianite



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Brookite
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Vesuvianite

Brookite and Vesuvianite Optical Properties

Optical Properties

Luster

Adamantine
Vitreous, Resinous

Pleochroism

Very weak
slight in colored varieties

Dispersion

0.200.03
0.005 1
👆🏻

Transparency

-
-

Refractive Index

2.583-2.7411.703-1.752
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
tetragonal

Birefringence

0.1170.004-0.006
0 0.296
👆🏻

Clarity

-
-

Brookite and Vesuvianite Optic Character

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

Brookite and Vesuvianite Transparency

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