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Cat s Eye
Cat s Eye

Dravite
Dravite



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Cat s Eye
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Dravite

Cat s Eye and Dravite Optical Properties

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Optical Properties

Luster

Vitreous
Vitreous

Pleochroism

-
Very strong: pale yellow colorless

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

Translucent
Transparent

Refractive Index

1.744-1.7551.614-1.666
1 3.25
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Optic Character

-
-

Crystal System

Orthorhombic
Trigonal Ditrigonal Pyramidal H-M Symbol (3m) Space Group: R 3m

Birefringence

-99990.014-0.032
0 0.296
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Clarity

Translucent
Transparent

Cat s Eye and Dravite Optic Character

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

Cat s Eye and Dravite Transparency

Similar to their colors, Cat s Eye and Dravite 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.