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Friedelite
Friedelite

Pyroxmangite
Pyroxmangite



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Pyroxmangite

Friedelite and Pyroxmangite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
NilArthur Thomas
Not Available
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Translucent
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.627-1.663
1.735-1.756
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Monoclinic Prismatic H-M Symbol (2/m) Space Group: C 2/m
Not Available
1.8 Birefringence
0.032-0.035
0.017-0.019
1.9 Clarity
Translucent
TransparentUlrich Henn and Claudio C. Milisenda

Friedelite and Pyroxmangite Optic Character

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

Friedelite and Pyroxmangite Transparency

Similar to their colors, Friedelite 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, Friedelite is Translucent while Friedelite is Translucent in appearance.