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Serpentine
Serpentine

Dravite
Dravite



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Serpentine
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Dravite

Serpentine and Dravite Optical Properties

Optical Properties

Luster

Vitreous, Greasy, Silky
Vitreous

Pleochroism

-
Very strong: pale yellow colorless

Dispersion

0.010.02
0.005 1
👆🏻

Transparency

Translucent
Transparent

Refractive Index

1.560-1.5711.614-1.666
1 3.25
👆🏻

Optic Character

-
-

Crystal System

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

Birefringence

0.008-0.0140.014-0.032
0 0.296
👆🏻

Clarity

Translucent
Transparent

Serpentine and Dravite Optic Character

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

Serpentine and Dravite Transparency

Similar to their colors, Serpentine 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, Serpentine is Translucent while Serpentine is Translucent in appearance.