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Poudretteite
Poudretteite

Pearl
Pearl



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Poudretteite
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Pearl

Poudretteite and Pearl Optical Properties

Optical Properties

Luster

Vitreous
Pearly

Pleochroism

Colorless
-

Dispersion

0.020.03
0.005 1
👆🏻

Transparency

-
Translucent, Opaque

Refractive Index

1.511-1.5321.52-1.66
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
Orthorhombic

Birefringence

0.0210.156
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Translucent

Poudretteite and Pearl Optic Character

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

Poudretteite and Pearl Transparency

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