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Nuummite
Nuummite

Bytownite
Bytownite



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Nuummite
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Bytownite

Nuummite and Bytownite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous, Pearly
1.2 Pleochroism
Not Available
colorless.
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Gemmological Tables (2004) More from other references
Transparent
1.5 Refractive Index
1.635-1.6631.561-1.583
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Triclinic
1.8 Birefringence
0.0170-0.2300.010-0.011
Achroite
0 0.296
1.9 Clarity
Gemmological Tables (2004) More from other references
Transparent

Nuummite and Bytownite Optic Character

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

Similar to their colors, Nuummite and Bytownite 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.