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Atacamite
Atacamite

Fayalite
Fayalite



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Atacamite
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Fayalite

Atacamite and Fayalite Optical Properties

1 Optical Properties
1.1 Luster
Adamantine, Vitreous
Vitreous, Resinous
1.2 Pleochroism
X = pale green; Y = yellow-green; Z = grass-green
Faint
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
TransparentAnthony et al, Handbook of mineralogy (2001)
1.5 Refractive Index
1.8311.827-1.879
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Orthorhombic
1.8 Birefringence
0.0490.042-0.051
Achroite
0 0.296
1.9 Clarity
Not Available
TransparentAnthony et al

Atacamite and Fayalite Optic Character

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

Similar to their colors, Atacamite and Fayalite 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.