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Beryllonite
Beryllonite

Pyromorphite
Pyromorphite



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Beryllonite
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Pyromorphite

Beryllonite and Pyromorphite Optical Properties

Optical Properties

Luster

Vitreous, Adamantine, Pearly
Resinous, Subadamantine

Pleochroism

-
Weak

Dispersion

0.010.03
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.552-1.5622.042-2.059
1 3.25
👆🏻

Optic Character

-
-

Crystal System

monoclinic
Hexagonal

Birefringence

0.0090.010
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
Transparent

Beryllonite and Pyromorphite Optic Character

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

Beryllonite and Pyromorphite Transparency

Similar to their colors, Beryllonite and Pyromorphite 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, Beryllonite is while Beryllonite is in appearance.