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Sinhalite
Sinhalite

Gyrolite
Gyrolite



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Sinhalite
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Gyrolite

Sinhalite and Gyrolite Optical Properties

Optical Properties

Luster

-
Vitreous, Pearly

Pleochroism

Trichroism: green light brown dark brownHerve Nicolas Lazzarelli
-

Dispersion

0.02-
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.665-1.7121.535
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Triclinic

Birefringence

0.036-0.0420.0140
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
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Sinhalite and Gyrolite Optic Character

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

Similar to their colors, Sinhalite and Gyrolite 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.