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Astrophyllite
Astrophyllite

Pyroxmangite
Pyroxmangite



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Astrophyllite
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Pyroxmangite

Astrophyllite and Pyroxmangite Optical Properties

Optical Properties

Luster

Greasy, Pearly
Vitreous

Pleochroism

Strong: X= deep red-orange Y= orange-yellow Z= lemon-yellow
-

Dispersion

0.120.02
0.005 1
👆🏻

Transparency

Translucent
-

Refractive Index

1.678-1.7581.735-1.756
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Triclinic
-

Birefringence

0.0500.017-0.019
0 0.296
👆🏻

Clarity

Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Astrophyllite and Pyroxmangite Optic Character

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

Astrophyllite and Pyroxmangite Transparency

Similar to their colors, Astrophyllite and Pyroxmangite 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, Astrophyllite is Translucent while Astrophyllite is Translucent in appearance.