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Atacamite
Atacamite

Obsidian
Obsidian



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Atacamite
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Obsidian

Atacamite and Obsidian Optical Properties

1 Optical Properties
1.1 Luster
Adamantine, Vitreous
Vitreous
1.2 Pleochroism
X = pale green; Y = yellow-green; Z = grass-green
AbsentWalter Schumann
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Transparent, Translucent
1.5 Refractive Index
1.8311.450-1.550
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Amorphous
1.8 Birefringence
0.049Not Available
Achroite
0 0.296
1.9 Clarity
Not Available
Transparent

Atacamite and Obsidian Optic Character

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

Similar to their colors, Atacamite and Obsidian 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 Not Available while Atacamite is Not Available in appearance.