×

Pyroxmangite
Pyroxmangite

Bertrandite
Bertrandite



ADD
Compare
X
Pyroxmangite
X
Bertrandite

Pyroxmangite and Bertrandite Optical Properties

Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

-
none.

Dispersion

0.020.01
0.005 1
👆🏻

Transparency

-
TransparentAnthony et al

Refractive Index

1.735-1.7561.583-1.614
1 3.25
👆🏻

Optic Character

-
-

Crystal System

-
Orthorhombic Pyramidal H-M Symbol (mm2) Space Group: Ccm21

Birefringence

0.017-0.019-9999
0 0.296
👆🏻

Clarity

TransparentUlrich Henn and Claudio C. Milisenda
TransparentAnthony et al

Pyroxmangite and Bertrandite Optic Character

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

Similar to their colors, Pyroxmangite and Bertrandite 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.