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Povondraite
Povondraite

Sinhalite
Sinhalite



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Povondraite
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Sinhalite

Povondraite and Sinhalite Optical Properties

Optical Properties

Luster

Resinous
-

Pleochroism

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

Dispersion

0.020.02
0.005 1
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Transparency

Translucent
-

Refractive Index

-99991.665-1.712
1 3.25
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Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

-99990.036-0.042
0 0.296
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Clarity

Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Povondraite and Sinhalite Optic Character

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

Povondraite and Sinhalite Transparency

Similar to their colors, Povondraite 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, Povondraite is Translucent while Povondraite is Translucent in appearance.