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Umbalite
Umbalite

Moissanite
Moissanite



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Umbalite
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Moissanite

Umbalite and Moissanite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Adamantine
1.2 Pleochroism
Not Available
NilArthur Thomas
1.3 Dispersion
0.020.10
Fluorite Optical Properties
0.007 1
1.4 Transparency
TransparentGemdat.org, Management Team (2012)
Gemmological Tables (2004) More from other references
1.5 Refractive Index
1.730-1.8202.648-2.691
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
6H polytype
1.8 Birefringence
Not Available0.043
Achroite
0 0.296
1.9 Clarity
TransparentGemdat.org
TransparentUlrich Henn and Claudio C. Milisenda

Umbalite and Moissanite Optic Character

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

Umbalite and Moissanite Transparency

Similar to their colors, Umbalite and Moissanite 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, Umbalite is Management Team (2012) and TransparentGemdat.org while Umbalite is Management Team (2012) and TransparentGemdat.org in appearance.