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Franklinite
Franklinite

Serpentine
Serpentine



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Franklinite
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Serpentine

Franklinite and Serpentine Optical Properties

Optical Properties

Luster

-
Vitreous, Greasy, Silky

Pleochroism

-
-

Dispersion

0.190.01
0.005 1
👆🏻

Transparency

Translucent
Translucent

Refractive Index

-99991.560-1.571
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Isometric Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
monoclinic

Birefringence

-99990.008-0.014
0 0.296
👆🏻

Clarity

Translucent
Translucent

Franklinite and Serpentine Optic Character

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

Franklinite and Serpentine Transparency

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