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Brookite
Brookite

Euclase
Euclase



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Brookite
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Euclase

Brookite and Euclase Optical Properties

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Optical Properties

Luster

Adamantine
Vitreous

Pleochroism

Very weak
Weak: colorless-(greenish) yellow

Dispersion

0.200.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

2.583-2.7411.650-1.677
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Monoclinic Prismatic H-M Symbol (2/m) Space Group: P 21/a

Birefringence

0.1170.019-0.025
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Brookite and Euclase Optic Character

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

Similar to their colors, Brookite and Euclase 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.