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Nuummite
Nuummite

Hibschite
Hibschite



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Hibschite

Nuummite and Hibschite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous
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
Semitransparent
1.5 Refractive Index
1.635-1.663Not Available
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: I a3d
1.8 Birefringence
0.0170-0.230Not Available
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
TranslucentAnthony et al

Nuummite and Hibschite Optic Character

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

Nuummite and Hibschite Transparency

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