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Faustite
Faustite

Danburite
Danburite



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Faustite
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Danburite

Faustite and Danburite Optical Properties

Optical Properties

Luster

Waxy
Vitreous, Greasy

Pleochroism

-
Weak: pale yellow yellow

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.6121.627-1.639
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

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

Birefringence

-99990.006
0 0.296
👆🏻

Clarity

Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Faustite and Danburite Optic Character

Faustite and Danburite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Faustite and Danburite 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 Danburite 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. Danburite has Biaxial/+ character.

Faustite and Danburite Transparency

Similar to their colors, Faustite and Danburite 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.