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Grossular
Grossular

Erythrite
Erythrite



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Grossular
X
Erythrite

Grossular and Erythrite Optical Properties

Optical Properties

Luster

Greasy, Vitreous
Subadamantine, Pearly

Pleochroism

None
Visible: X = pale pinkish to pale rose; Y = pale violet to pale violet-rose; Z = deep red

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.730-1.7601.626-1.629
1 3.25
👆🏻

Optic Character

-
-

Crystal System

cubic
monoclinic

Birefringence

0.020-9999
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
-

Grossular and Erythrite Optic Character

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

Similar to their colors, Grossular and Erythrite 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.