Chrysoprase and Powellite Optical Properties

Chrysoprase

Powellite

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1 Optical Properties

1.1 Luster

Vitreous, Vitreous, Waxy

Greasy, Subadamantine

1.2 Pleochroism

AbsentWalter Schumann

In deeply colored specimens: blue greenAnthony et al

1.3 Dispersion

Albite Optical ..

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None

Rank: N/A (Overall)▶

Not Available

Rank: N/A (Overall)▶

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Fluorite Optical Properties

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0.044 (Anglesite Opt..)

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1.4 Transparency

Translucent, Translucent, Opaque, Translucent to nearly opaque

Transparent

1.5 Refractive Index

1.530-1.543

1.974-1.984

1.6 Optic Character

Not Available

1.7 Crystal System

Trigonal

Not Available

1.8 Birefringence

0.004

Not Available

1.9 Clarity

Translucent

Transparent

Chrysoprase and Powellite Optic Character

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

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Chrysoprase and Powellite Transparency

Similar to their colors, Chrysoprase 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, Chrysoprase is Opaque, Translucent, Translucent and Translucent to nearly opaque while Chrysoprase is Opaque, Translucent, Translucent and Translucent to nearly opaque in appearance.