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Faustite
Faustite

Beryllonite
Beryllonite



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Faustite
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Beryllonite

Faustite and Beryllonite Optical Properties

Optical Properties

Luster

Waxy
Vitreous, Adamantine, Pearly

Pleochroism

-
-

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.6121.552-1.562
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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

Birefringence

-99990.009
0 0.296
👆🏻

Clarity

Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Faustite and Beryllonite Optic Character

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

Similar to their colors, Faustite and Beryllonite 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.