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Atacamite
Atacamite

Gahnospinel
Gahnospinel



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Atacamite and Gahnospinel 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
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Not Available
Gemmological Tables (2004)
1.5 Refractive Index
1.831
1.735-1.790
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Isometric
1.8 Birefringence
0.049
Not Available
1.9 Clarity
Not Available
TransparentUlrich Henn and Claudio C. Milisenda

Atacamite and Gahnospinel Optic Character

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

Similar to their colors, Atacamite and Gahnospinel 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.