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Annabergite
Annabergite

Anthophyllite
Anthophyllite



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Annabergite
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Anthophyllite

Annabergite and Anthophyllite Optical Properties

Optical Properties

Luster

Subadamantine, Pearly
Vitreous, Pearly

Pleochroism

-
-

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.6221.603-1.690
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

0.065-9999
0 0.296
👆🏻

Clarity

-
Transparent

Annabergite and Anthophyllite Optic Character

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

Annabergite and Anthophyllite Transparency

Similar to their colors, Annabergite 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, Annabergite is while Annabergite is in appearance.