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Umbalite
Umbalite

Kornerupine
Kornerupine



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Umbalite
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Kornerupine

Umbalite and Kornerupine Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
Not Available
X = colorless to green; Y = colorless
1.3 Dispersion
0.020.02
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
1.730-1.8201.660-1.685
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Orthorhombic
1.8 Birefringence
Not Available0.012-0.017
Achroite
0 0.296
1.9 Clarity
TransparentGemdat.org
TransparentUlrich Henn and Claudio C. Milisenda

Umbalite and Kornerupine Optic Character

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

Similar to their colors, Umbalite and Kornerupine 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.