×

Pyroxmangite
Pyroxmangite

Allanite
Allanite



ADD
Compare
X
Pyroxmangite
X
Allanite

Pyroxmangite and Allanite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Not Available
1.5 Refractive Index
1.735-1.7561
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Not Available
1.8 Birefringence
0.017-0.0190.013-0.036
Achroite
0 0.296
1.9 Clarity
TransparentUlrich Henn and Claudio C. Milisenda
Not Available

Pyroxmangite and Allanite Optic Character

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

Similar to their colors, Pyroxmangite and Allanite 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 Gemmological Tables (2004) More from other references while Pyroxmangite is Gemmological Tables (2004) More from other references in appearance.