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Beryllonite
Beryllonite

Grossular
Grossular



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Beryllonite
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Grossular

Beryllonite and Grossular Optical Properties

Optical Properties

Luster

Vitreous, Adamantine, Pearly
Greasy, Vitreous

Pleochroism

-
None

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.552-1.5621.730-1.760
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
cubic

Birefringence

0.0090.020
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
TransparentUlrich Henn and Claudio C. Milisenda

Beryllonite and Grossular Optic Character

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

Beryllonite and Grossular Transparency

Similar to their colors, Beryllonite and Grossular 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, Beryllonite is while Beryllonite is in appearance.