×

Atacamite
Atacamite

Anthophyllite
Anthophyllite



ADD
Compare
X
Atacamite
X
Anthophyllite

Atacamite and Anthophyllite Optical Properties

Optical Properties

Luster

Adamantine, Vitreous
Vitreous, Pearly

Pleochroism

X = pale green; Y = yellow-green; Z = grass-green
-

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.8311.603-1.690
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

Orthorhombic
Orthorhombic Dipyramidal H-M Symbol (2/m 2/m 2/m) Space Group: P nma

Birefringence

0.049-9999
0 0.296
👆🏻

Clarity

-
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 while Atacamite is in appearance.