Cat s Eye and Powellite Optical Properties

Cat s Eye

Powellite

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1 Optical Properties

1.1 Luster

Vitreous

Greasy, Subadamantine

1.2 Pleochroism

Not Available

In deeply colored specimens: blue greenAnthony et al

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Translucent

Transparent

1.5 Refractive Index

1.744-1.7551.974-1.984

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

Orthorhombic

Not Available

1.8 Birefringence

Not AvailableNot Available

0 0.296

1.9 Clarity

Translucent

Transparent

Cat s Eye and Powellite Optic Character

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

Similar to their colors, Cat s Eye 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, Cat s Eye is Translucent while Cat s Eye is Translucent in appearance.