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Boleite
Boleite

Spinel
Spinel



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Boleite
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Spinel

Boleite and Spinel Optical Properties

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Optical Properties

Luster

Vitreous, Pearly
Vitreous

Pleochroism

-
Absent

Dispersion

0.070.02
0.005 1
👆🏻

Transparency

Transparent
Transparent, Translucent, Transparent to translucent

Refractive Index

2.051.73
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Isometric
Isometric

Birefringence

0.010-9999
0 0.296
👆🏻

Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Boleite and Spinel Optic Character

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

Similar to their colors, Boleite and Spinel 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.