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Chlorite group
Chlorite group

Anthophyllite
Anthophyllite



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Chlorite group
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Anthophyllite

Chlorite group and Anthophyllite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous, Pearly

Pleochroism

-
-

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.57-1.671.603-1.690
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

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

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

-
Transparent

Chlorite group and Anthophyllite Optic Character

Chlorite group and Anthophyllite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Chlorite group 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 Chlorite group 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.

Chlorite group and Anthophyllite Transparency

Similar to their colors, Chlorite group 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, Chlorite group is while Chlorite group is in appearance.