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Brookite
Brookite

Rutile
Rutile



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Brookite
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Rutile

Brookite and Rutile Optical Properties

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Optical Properties

Luster

Adamantine
Adamantine

Pleochroism

Very weak
Weak to distinct brownish red-green-yellow

Dispersion

0.200.33
0.005 1
👆🏻

Transparency

-
Transparent, Translucent

Refractive Index

2.583-2.7412.609-2.903
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
tetragonal

Birefringence

0.1170.296
0 0.296
👆🏻

Clarity

-
Transparent

Brookite and Rutile Optic Character

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

Similar to their colors, Brookite and Rutile 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.