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Boleite
Boleite

Topaz
Topaz



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Boleite
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Topaz

Boleite and Topaz Optical Properties

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Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

-
Weak

Dispersion

0.070.01
0.005 1
👆🏻

Transparency

Transparent
Transparent

Refractive Index

2.051.606-1.644
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Isometric
Orthorhombic

Birefringence

0.0100.008-0.011
0 0.296
👆🏻

Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Boleite and Topaz Optic Character

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

Boleite and Topaz Transparency

Similar to their colors, Boleite and Topaz 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, Boleite is Transparent while Boleite is Transparent in appearance.