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Atacamite
Atacamite

Danburite
Danburite



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Atacamite
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Danburite

Atacamite and Danburite Optical Properties

1 Optical Properties
1.1 Luster
Adamantine, Vitreous
Vitreous, Greasy
1.2 Pleochroism
X = pale green; Y = yellow-green; Z = grass-green
Weak: pale yellow yellow
1.3 Dispersion
NA0.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.8311.627-1.639
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Orthorhombic
Orthorhombic
1.8 Birefringence
0.0490.006
Achroite
0 0.296
1.9 Clarity
Not Available
TransparentUlrich Henn and Claudio C. Milisenda

Atacamite and Danburite Optic Character

Atacamite and Danburite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Atacamite and Danburite 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 Danburite 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. Danburite has Biaxial/+ character.

Atacamite and Danburite Transparency

Similar to their colors, Atacamite and Danburite 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.