Cat s Eye and Norbergite Optical Properties

Cat s Eye

Norbergite

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1 Optical Properties

1.1 Luster

Vitreous

1.2 Pleochroism

Not Available

Pale yellow very pale yellow colorlessAnthony et al

1.3 Dispersion

NANA

0.007 1

1.4 Transparency

Translucent

Transparent

1.5 Refractive Index

1.744-1.7551.563-1.593

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 Norbergite Optic Character

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

Similar to their colors, Cat s Eye and Norbergite 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.