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Ekanite
Ekanite

Thulite
Thulite



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Ekanite
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Thulite

Ekanite and Thulite Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

-
Present

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

Transparent
Opaque, Translucent, Opaque . May be translucent in thin backlit sections.

Refractive Index

1.593-1.5961.695
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

0.0010.006-0.018
0 0.296
👆🏻

Clarity

Transparent
OpaqueHerve Nicolas Lazzarelli

Ekanite and Thulite Optic Character

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

Similar to their colors, Ekanite and Thulite 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.