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Ekanite
Ekanite

Sinhalite
Sinhalite



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Ekanite
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Sinhalite

Ekanite and Sinhalite Optical Properties

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Optical Properties

Luster

Vitreous
-

Pleochroism

-
Trichroism: green light brown dark brownHerve Nicolas Lazzarelli

Dispersion

0.030.02
0.005 1
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Transparency

Transparent
-

Refractive Index

1.593-1.5961.665-1.712
1 3.25
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Optic Character

-
-

Crystal System

Tetragonal Trapezohedral H-M Symbol (4 2 2) Space Group: I 422
Orthorhombic

Birefringence

0.0010.036-0.042
0 0.296
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Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Ekanite and Sinhalite Optic Character

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

Ekanite and Sinhalite Transparency

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