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Pumpellyite
Pumpellyite

Beryllonite
Beryllonite



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Pumpellyite
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Beryllonite

Pumpellyite and Beryllonite Optical Properties

Optical Properties

Luster

-
Vitreous, Adamantine, Pearly

Pleochroism

-
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.674-1.7641.552-1.562
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
monoclinic

Birefringence

0.014-0.0160.009
0 0.296
👆🏻

Clarity

OpaqueUlrich Henn and Claudio C. Milisenda
TransparentUlrich Henn and Claudio C. Milisenda

Pumpellyite and Beryllonite Optic Character

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

Pumpellyite and Beryllonite Transparency

Similar to their colors, Pumpellyite 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, Pumpellyite is while Pumpellyite is in appearance.