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Sinhalite
Sinhalite

Emerald
Emerald



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Sinhalite
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Emerald

Sinhalite and Emerald Optical Properties

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Optical Properties

Luster

-
Vitreous

Pleochroism

Trichroism: green light brown dark brownHerve Nicolas Lazzarelli
Strong dichroism: yellow green Lazzarelli

Dispersion

0.020.01
0.005 1
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Transparency

-
Transparent, Translucent, Transparent to translucent

Refractive Index

1.665-1.7121.565-1.602
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
Hexagonal

Birefringence

0.036-0.0420.0040-0.0070
0 0.296
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Clarity

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

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

Similar to their colors, Sinhalite and Emerald 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.