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Umbalite
Umbalite

Eosphorite
Eosphorite



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Umbalite
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Eosphorite

Umbalite and Eosphorite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Vitreous, Resinous
1.2 Pleochroism
Not Available
Visible: X = yellow; Y = pink; Z = pale pink to colorless
1.3 Dispersion
0.02NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
TransparentGemdat.org, Management Team (2012)
Transparent
1.5 Refractive Index
1.730-1.8201.639-1.672
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Orthorhombic
1.8 Birefringence
Not Available0.029-0.032
Achroite
0 0.296
1.9 Clarity
TransparentGemdat.org
Transparent

Umbalite and Eosphorite Optic Character

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

Similar to their colors, Umbalite and Eosphorite 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.