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Faustite
Faustite

Lazulite
Lazulite



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Faustite
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Lazulite

Faustite and Lazulite Optical Properties

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Optical Properties

Luster

Waxy
-

Pleochroism

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

Dispersion

0.010.01
0.005 1
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Transparency

Translucent
Transparent, Translucent

Refractive Index

1.6121.604-1.646
1 3.25
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Optic Character

-
-

Crystal System

Triclinic Pinacoidal H-M Symbol ( 1) Space Group: P1
monoclinic

Birefringence

-99990.031-0.036
0 0.296
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Clarity

Translucent
Transparent

Faustite and Lazulite Optic Character

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

Faustite and Lazulite Transparency

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