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Powellite
Powellite

Serpentine
Serpentine



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Powellite
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Serpentine

Powellite and Serpentine Optical Properties

Optical Properties

Luster

Greasy, Subadamantine
Vitreous, Greasy, Silky

Pleochroism

In deeply colored specimens: blue greenAnthony et al
-

Dispersion

0.030.01
0.005 1
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Transparency

Transparent
Translucent

Refractive Index

1.974-1.9841.560-1.571
1 3.25
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Optic Character

-
-

Crystal System

-
monoclinic

Birefringence

-99990.008-0.014
0 0.296
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Clarity

Transparent
Translucent

Powellite and Serpentine Optic Character

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

Similar to their colors, Powellite and Serpentine 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.