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Anglesite
Anglesite

Umbalite
Umbalite



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Anglesite
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Umbalite

Anglesite and Umbalite Optical Properties

1 Optical Properties
1.1 Luster
Adamantine
Not Available
1.2 Pleochroism
NilArthur Thomas
Not Available
1.3 Dispersion
0.040.02
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
TransparentGemdat.org, Management Team (2012)
1.5 Refractive Index
1.877-1.8941.730-1.820
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Orthorhombic
Not Available
1.8 Birefringence
0.017Not Available
Achroite
0 0.296
1.9 Clarity
Transparent
TransparentGemdat.org

Anglesite and Umbalite Optic Character

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

Anglesite and Umbalite Transparency

Similar to their colors, Anglesite and Umbalite 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, Anglesite is Transparent while Anglesite is Transparent in appearance.