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Umbalite
Umbalite

Ekanite
Ekanite



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Umbalite
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Ekanite

Umbalite and Ekanite Optical Properties

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1 Optical Properties
1.1 Luster
Not Available
Vitreous
1.2 Pleochroism
Not Available
Not Available
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
TransparentGemdat.org, Management Team (2012)
Transparent
1.5 Refractive Index
1.730-1.8201.593-1.596
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Tetragonal Trapezohedral H-M Symbol (4 2 2) Space Group: I 422
1.8 Birefringence
Not Available0.001
Achroite
0 0.296
1.9 Clarity
TransparentGemdat.org
Transparent

Umbalite and Ekanite Optic Character

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

Similar to their colors, Umbalite and Ekanite 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.