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Grossular Garnet
Grossular Garnet

Cassiterite
Cassiterite



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Grossular Garnet
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Cassiterite

Grossular Garnet and Cassiterite Optical Properties

Optical Properties

Luster

Vitreous, Adamantine
Adamantine, Greasy

Pleochroism

-
Pleochroic haloes have been observed. Dichroic in yellow

Dispersion

0.030.07
0.005 1
👆🏻

Transparency

Transparent
Transparent, Translucent

Refractive Index

1.738-1.7451.990-2.105
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Isometric
tetragonal

Birefringence

-99990.096-0.098
0 0.296
👆🏻

Clarity

Transparent
Transparent

Grossular Garnet and Cassiterite Optic Character

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

Similar to their colors, Grossular Garnet and Cassiterite 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 Garnet is Transparent while Grossular Garnet is Transparent in appearance.