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Lizardite
Lizardite

Thulite
Thulite



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Lizardite
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Thulite

Lizardite and Thulite Optical Properties

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Optical Properties

Luster

-
Vitreous

Pleochroism

-
Present

Dispersion

0.010.02
0.005 1
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Transparency

TranslucentAnthony et al
Opaque, Translucent, Opaque . May be translucent in thin backlit sections.

Refractive Index

1.538-1.5601.695
1 3.25
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Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

-99990.006-0.018
0 0.296
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Clarity

TranslucentAnthony et al
OpaqueHerve Nicolas Lazzarelli

Lizardite and Thulite Optic Character

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

Lizardite and Thulite Transparency

Similar to their colors, Lizardite 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, Lizardite is TranslucentAnthony et al while Lizardite is TranslucentAnthony et al in appearance.