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Pyroxmangite
Pyroxmangite

Cordierite
Cordierite



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Pyroxmangite
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Cordierite

Pyroxmangite and Cordierite Optical Properties

Optical Properties

Luster

Vitreous
Greasy, Vitreous

Pleochroism

-
X = pale yellow

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.735-1.756-9999
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Orthorhombic

Birefringence

0.017-0.019-9999
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
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Pyroxmangite and Cordierite Optic Character

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

Pyroxmangite and Cordierite Transparency

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