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Sinhalite
Sinhalite

Spessartine
Spessartine



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Sinhalite
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Spessartine

Sinhalite and Spessartine Optical Properties

Optical Properties

Luster

-
Vitreous

Pleochroism

Trichroism: green light brown dark brownHerve Nicolas Lazzarelli
-

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.665-1.7121.789-1.820
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Isometric

Birefringence

0.036-0.0420.027
0 0.296
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Clarity

TransparentUlrich Henn and Claudio C. Milisenda
TransparentUlrich Henn and Claudio C. Milisenda

Sinhalite and Spessartine Optic Character

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

Sinhalite and Spessartine Transparency

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