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Beudantite
Beudantite

Poudretteite
Poudretteite



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Beudantite
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Poudretteite

Beudantite and Poudretteite Optical Properties

Optical Properties

Luster

Vitreous, Resinous
Vitreous

Pleochroism

visible
Colorless

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.9571.511-1.532
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Trigonal
Hexagonal

Birefringence

0.0140.021
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Beudantite and Poudretteite Optic Character

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

Beudantite and Poudretteite Transparency

Similar to their colors, Beudantite and Poudretteite 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, Beudantite is while Beudantite is in appearance.