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Pyromorphite
Pyromorphite

Atacamite
Atacamite



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Pyromorphite
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Atacamite

Pyromorphite and Atacamite Optical Properties

Optical Properties

Luster

Resinous, Subadamantine
Adamantine, Vitreous

Pleochroism

Weak
X = pale green; Y = yellow-green; Z = grass-green

Dispersion

0.030.03
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

2.042-2.0591.831
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Hexagonal
Orthorhombic

Birefringence

0.0100.049
0 0.296
👆🏻

Clarity

Transparent
-

Pyromorphite and Atacamite Optic Character

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

Similar to their colors, Pyromorphite and Atacamite 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.