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Druzy
Druzy

Powellite
Powellite



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Druzy
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Powellite

Druzy and Powellite Optical Properties

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Optical Properties

Luster

-
Greasy, Subadamantine

Pleochroism

-
In deeply colored specimens: blue greenAnthony et al

Dispersion

0.010.03
0.005 1
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Transparency

Opaque
Transparent

Refractive Index

-99991.974-1.984
1 3.25
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Optic Character

-
-

Crystal System

Isometric
-

Birefringence

-9999-9999
0 0.296
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Clarity

Opaque
Transparent

Druzy and Powellite Optic Character

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

Druzy and Powellite Transparency

Similar to their colors, Druzy 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, Druzy is Opaque while Druzy is Opaque in appearance.