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Sinhalite
Sinhalite

Andradite Garnet
Andradite Garnet



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Sinhalite
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Andradite Garnet

Sinhalite and Andradite Garnet Optical Properties

Optical Properties

Luster

-
Adamantine

Pleochroism

Trichroism: green light brown dark brownHerve Nicolas Lazzarelli
-

Dispersion

0.020.03
0.005 1
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Transparency

-
Transparent, Opaque, Transparent to opaque

Refractive Index

1.665-1.7121.888-1.889
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
Isometric

Birefringence

0.036-0.042-9999
0 0.296
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Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent to opaque

Sinhalite and Andradite Garnet Optic Character

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

Sinhalite and Andradite Garnet Transparency

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