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Pleonast
Pleonast

Anthophyllite
Anthophyllite



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Pleonast
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Anthophyllite

Pleonast and Anthophyllite Optical Properties

Optical Properties

Luster

-
Vitreous, Pearly

Pleochroism

-
-

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

-99991.603-1.690
1 3.25
👆🏻

Optic Character

-
Biaxial/+

Crystal System

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

Birefringence

-9999-9999
0 0.296
👆🏻

Clarity

-
Transparent

Pleonast and Anthophyllite Optic Character

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

Pleonast and Anthophyllite Transparency

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