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Mimetite
Mimetite

Atacamite
Atacamite



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Mimetite
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Atacamite

Mimetite and Atacamite Optical Properties

1 Optical Properties
1.1 Luster
Resinous, Subadamantine
Adamantine, Vitreous
1.2 Pleochroism
Weak
X = pale green; Y = yellow-green; Z = grass-green
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Not Available
1.5 Refractive Index
2.106-2.2631.831
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Hexagonal
Orthorhombic
1.8 Birefringence
0.0190.049
Achroite
0 0.296
1.9 Clarity
Translucent
Not Available

Mimetite and Atacamite Optic Character

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

Mimetite and Atacamite Transparency

Similar to their colors, Mimetite 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, Mimetite is Translucent while Mimetite is Translucent in appearance.