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Pyromorphite
Pyromorphite

Brazilianite
Brazilianite



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Pyromorphite
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Brazilianite

Pyromorphite and Brazilianite Optical Properties

Optical Properties

Luster

Resinous, Subadamantine
Vitreous

Pleochroism

Weak
Very weakWalter Schumann

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

2.042-2.0591.602-1.625
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
monoclinic

Birefringence

0.0100.019-0.021
0 0.296
👆🏻

Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Pyromorphite and Brazilianite Optic Character

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

Pyromorphite and Brazilianite Transparency

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