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Atacamite
Atacamite

Amazonite
Amazonite



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X
Atacamite
X
Amazonite

Atacamite and Amazonite Optical Properties

Optical Properties

Luster

Adamantine, Vitreous
Vitreous

Pleochroism

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

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

-
Translucent, Translucent to opaque

Refractive Index

1.8311.522-1.530
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Triclinic

Birefringence

0.0490.008-0.010
0 0.296
👆🏻

Clarity

-
Translucent

Atacamite and Amazonite Optic Character

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

Atacamite and Amazonite Transparency

Similar to their colors, Atacamite and Amazonite 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, Atacamite is while Atacamite is in appearance.