Cat s Eye and Pleonaste Optical Properties

Cat s Eye

Pleonaste

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1 Optical Properties

1.1 Luster

Vitreous

Not Available

1.2 Pleochroism

Not Available

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Translucent

Gemmological Tables (2004)

1.5 Refractive Index

1.744-1.7551.780

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

Gemmological Tables (2004)

Cat s Eye and Pleonaste Optic Character

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

Similar to their colors, Cat s Eye and Pleonaste 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.