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Moonstone
Moonstone

Atacamite
Atacamite



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Moonstone
X
Atacamite

Moonstone and Atacamite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Pearly
-
0.01
Transparent, Transparent to translucent
1.518-1.527
-
monoclinic
0.006-0.007
Transparent
 
Adamantine, Vitreous
X = pale green; Y = yellow-green; Z = grass-green
0.03
-
1.831
-
Orthorhombic
0.049
-

Moonstone and Atacamite Optic Character

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

Moonstone and Atacamite Transparency

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