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Beudantite
Beudantite

Spinel
Spinel



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Beudantite
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Spinel

Beudantite and Spinel Optical Properties

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Optical Properties

Luster

Vitreous, Resinous
Vitreous

Pleochroism

visible
Absent

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

-
Transparent, Translucent, Transparent to translucent

Refractive Index

1.9571.73
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
Isometric

Birefringence

0.014-9999
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Beudantite and Spinel Optic Character

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

Beudantite and Spinel Transparency

Similar to their colors, Beudantite 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, Beudantite is while Beudantite is in appearance.