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Topaz
Topaz

Lizardite
Lizardite



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Topaz
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Lizardite

Topaz and Lizardite Optical Properties

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Optical Properties

Luster

Vitreous
-

Pleochroism

Weak
-

Dispersion

0.010.01
0.005 1
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Transparency

Transparent
TranslucentAnthony et al

Refractive Index

1.606-1.6441.538-1.560
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
-

Birefringence

0.008-0.011-9999
0 0.296
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Clarity

TransparentUlrich Henn and Claudio C. Milisenda
TranslucentAnthony et al

Topaz and Lizardite Optic Character

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

Topaz and Lizardite Transparency

Similar to their colors, Topaz and Lizardite 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, Topaz is Transparent while Topaz is Transparent in appearance.