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Spessartine
Spessartine

Garnet
Garnet



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Spessartine
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Garnet

Spessartine and Garnet Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Adamantine

Pleochroism

-
None

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

-
Transparent, Transparent to translucent

Refractive Index

1.789-1.8201.730-1.895
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Isometric
Trigonal

Birefringence

0.027-9999
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Spessartine and Garnet Optic Character

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

Spessartine and Garnet Transparency

Similar to their colors, Spessartine 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, Spessartine is while Spessartine is in appearance.