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Povondraite
Povondraite

Powellite
Powellite



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Povondraite
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Powellite

Povondraite and Powellite Optical Properties

1 Optical Properties
1.1 Luster
Resinous
Greasy, Subadamantine
1.2 Pleochroism
Strong: yellow-brown
In deeply colored specimens: blue greenAnthony et al
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Translucent
Transparent
1.5 Refractive Index
Not Available1.974-1.984
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Not Available
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Translucent
Transparent

Povondraite and Powellite Optic Character

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

Povondraite and Powellite Transparency

Similar to their colors, Povondraite and Powellite 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, Povondraite is Translucent while Povondraite is Translucent in appearance.