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Faustite
Faustite

Tugtupite
Tugtupite



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Faustite
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Tugtupite

Faustite and Tugtupite Optical Properties

Optical Properties

Luster

Waxy
-

Pleochroism

-
ModerateArthur Thomas

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

Translucent
OpaqueHerve Nicolas Lazzarelli

Refractive Index

1.6121.494-1.504
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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

Birefringence

-99990.008
0 0.296
👆🏻

Clarity

Translucent
OpaqueHerve Nicolas Lazzarelli

Faustite and Tugtupite Optic Character

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

Similar to their colors, Faustite and Tugtupite 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.