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Sellaite
Sellaite

Jasper
Jasper



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Sellaite
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Jasper

Sellaite and Jasper Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

-
-

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

Transparent
Opaque

Refractive Index

1.378-1.3901.540
1 3.25
👆🏻

Optic Character

-
-

Crystal System

tetragonal
Trigonal

Birefringence

0.012-9999
0 0.296
👆🏻

Clarity

Transparent
OpaqueHerve Nicolas Lazzarelli

Sellaite and Jasper Optic Character

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

Sellaite and Jasper Transparency

Similar to their colors, Sellaite and Jasper 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, Sellaite is Transparent while Sellaite is Transparent in appearance.