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Pollucite
Pollucite

Powellite
Powellite



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Pollucite
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Powellite

Pollucite and Powellite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous, Greasy
Greasy, Subadamantine
1.2 Pleochroism
Not Available
In deeply colored specimens: blue greenAnthony et al
1.3 Dispersion
0.01NA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent, Translucent
Transparent
1.5 Refractive Index
1.517-1.5251.974-1.984
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Isometric
Not Available
1.8 Birefringence
Not AvailableNot Available
Achroite
0 0.296
1.9 Clarity
Transparent
Transparent

Pollucite and Powellite Optic Character

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

Pollucite and Powellite Transparency

Similar to their colors, Pollucite 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, Pollucite is Translucent and Transparent while Pollucite is Translucent and Transparent in appearance.