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Scheelite
Scheelite

Brookite
Brookite



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Scheelite
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Brookite

Scheelite and Brookite Optical Properties

Optical Properties

Luster

Vitreous, Adamantine
Adamantine

Pleochroism

Definite dichoric in yellow (yellow to orange-brown)
Very weak

Dispersion

0.040.20
0.005 1
👆🏻

Transparency

Translucent, Transparent
-

Refractive Index

1.918-1.9362.583-2.741
1 3.25
👆🏻

Optic Character

-
-

Crystal System

tetragonal
Orthorhombic

Birefringence

0.0160.117
0 0.296
👆🏻

Clarity

Translucent
-

Scheelite and Brookite Optic Character

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

Scheelite and Brookite Transparency

Similar to their colors, Scheelite and Brookite 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, Scheelite is Translucent and Transparent while Scheelite is Translucent and Transparent in appearance.