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Lazulite
Lazulite

Pyrite
Pyrite



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Lazulite
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Pyrite

Lazulite and Pyrite Optical Properties

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Optical Properties

Luster

-
-

Pleochroism

Transparent crystals show a strong pleochroism: colorless light blue dark (violet) blueHerve Nicolas Lazzarelli
-

Dispersion

0.010.04
0.005 1
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Transparency

Transparent, Translucent
OpaqueHerve Nicolas Lazzarelli

Refractive Index

1.604-1.646-9999
1 3.25
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Optic Character

-
-

Crystal System

monoclinic
Isometric

Birefringence

0.031-0.036-9999
0 0.296
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Clarity

Transparent
OpaqueHerve Nicolas Lazzarelli

Lazulite and Pyrite Optic Character

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

Lazulite and Pyrite Transparency

Similar to their colors, Lazulite and Pyrite 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, Lazulite is Transparent and Translucent while Lazulite is Transparent and Translucent in appearance.