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Atacamite
Atacamite

Anthophyllite
Anthophyllite



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Atacamite
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Anthophyllite

Atacamite and Anthophyllite Optical Properties

1 Optical Properties
1.1 Luster
Adamantine, Vitreous
Vitreous, Pearly
1.2 Pleochroism
X = pale green; Y = yellow-green; Z = grass-green
When Fe-rich
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
Transparent
1.5 Refractive Index
1.831
1.603-1.690
1.6 Optic Character
Not Available
Biaxial/+
1.7 Crystal System
Orthorhombic
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma
1.8 Birefringence
0.049
Not Available
1.9 Clarity
Not Available
Transparent

Atacamite and Anthophyllite Optic Character

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

Atacamite and Anthophyllite Transparency

Similar to their colors, Atacamite and Anthophyllite 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.

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