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Sylvite
Sylvite

Anthophyllite
Anthophyllite



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Sylvite
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Anthophyllite

Sylvite and Anthophyllite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous, Pearly

Pleochroism

Visible in colored crystals
-

Dispersion

0.010.01
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

1.49031.603-1.690
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

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

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

-
Transparent

Sylvite and Anthophyllite Optic Character

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

Sylvite and Anthophyllite Transparency

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