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Clinozoisite
Clinozoisite

Thulite
Thulite



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Clinozoisite
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Thulite

Clinozoisite and Thulite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

StrongArthur Thomas
Present

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

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

Refractive Index

1.670-1.7341.695
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Orthorhombic

Birefringence

0.006-0.0110.006-0.018
0 0.296
👆🏻

Clarity

Transparent
OpaqueHerve Nicolas Lazzarelli

Clinozoisite and Thulite Optic Character

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

Clinozoisite and Thulite Transparency

Similar to their colors, Clinozoisite 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, Clinozoisite is Transparent while Clinozoisite is Transparent in appearance.