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Powellite
Powellite

Emerald
Emerald



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Powellite
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Emerald

Powellite and Emerald Optical Properties

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1 Optical Properties
1.1 Luster
Greasy, Subadamantine
Vitreous
1.2 Pleochroism
In deeply colored specimens: blue greenAnthony et al
Strong dichroism: yellow green Lazzarelli
1.3 Dispersion
NA0.01
Fluorite Optical Properties
0.007 1
1.4 Transparency
Transparent
Transparent, Translucent, Transparent to translucent
1.5 Refractive Index
1.974-1.9841.565-1.602
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Hexagonal
1.8 Birefringence
Not Available0.0040-0.0070
Achroite
0 0.296
1.9 Clarity
Transparent
Color grading system

Powellite and Emerald Optic Character

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

Similar to their colors, Powellite and Emerald 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.