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Brookite
Brookite

Gedrite
Gedrite



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Brookite
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Gedrite

Brookite and Gedrite Optical Properties

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Optical Properties

Luster

Adamantine
Vitreous

Pleochroism

Very weak
Weak to moderate

Dispersion

0.200.02
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

2.583-2.7411.625-1.718
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma

Birefringence

0.117-9999
0 0.296
👆🏻

Clarity

-
Transparent

Brookite and Gedrite Optic Character

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

Similar to their colors, Brookite and Gedrite 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.