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Willemite
Willemite

Garnet
Garnet



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Willemite
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Garnet

Willemite and Garnet Optical Properties

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Optical Properties

Luster

Vitreous, Resinous
Vitreous, Adamantine

Pleochroism

-
None

Dispersion

0.170.02
0.005 1
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Transparency

Transparent, Translucent
Transparent, Transparent to translucent

Refractive Index

1.687-1.7231.730-1.895
1 3.25
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Optic Character

-
-

Crystal System

Trigonal
Trigonal

Birefringence

0.028-0.030-9999
0 0.296
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Clarity

Transparent
Transparent

Willemite and Garnet Optic Character

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

Willemite and Garnet Transparency

Similar to their colors, Willemite and Garnet 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, Willemite is Transparent and Translucent while Willemite is Transparent and Translucent in appearance.