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Anthophyllite
Anthophyllite

Vesuvianite
Vesuvianite



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Anthophyllite
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Vesuvianite

Anthophyllite and Vesuvianite Optical Properties

Optical Properties

Luster

Vitreous, Pearly
Vitreous, Resinous

Pleochroism

-
slight in colored varieties

Dispersion

0.010.03
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

1.603-1.6901.703-1.752
1 3.25
👆🏻

Optic Character

Biaxial/+
-

Crystal System

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

Birefringence

-99990.004-0.006
0 0.296
👆🏻

Clarity

Transparent
-

Anthophyllite and Vesuvianite Optic Character

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

Anthophyllite and Vesuvianite Transparency

Similar to their colors, Anthophyllite and Vesuvianite 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, Anthophyllite is Transparent while Anthophyllite is Transparent in appearance.