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Grossular
Grossular

Jasper
Jasper



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Grossular
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Jasper

Grossular and Jasper Optical Properties

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Optical Properties

Luster

Greasy, Vitreous
Vitreous

Pleochroism

None
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
Opaque

Refractive Index

1.730-1.7601.540
1 3.25
👆🏻

Optic Character

-
-

Crystal System

cubic
Trigonal

Birefringence

0.020-9999
0 0.296
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Clarity

TransparentUlrich Henn and Claudio C. Milisenda
OpaqueHerve Nicolas Lazzarelli

Grossular and Jasper Optic Character

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

Grossular and Jasper Transparency

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