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Powellite
Powellite

Bytownite
Bytownite



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Powellite
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Bytownite

Powellite and Bytownite Optical Properties

1 Optical Properties
1.1 Luster
Greasy, Subadamantine
Vitreous, Pearly
1.2 Pleochroism
In deeply colored specimens: blue greenAnthony et al
colorless.
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Transparent
1.5 Refractive Index
1.974-1.9841.561-1.583
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Triclinic
1.8 Birefringence
Not Available0.010-0.011
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Powellite and Bytownite Optic Character

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

Powellite and Bytownite Transparency

Similar to their colors, Powellite and Bytownite 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, Powellite is Transparent while Powellite is Transparent in appearance.