Serpentine and Vivianite Optical Properties

Serpentine

Vivianite

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1 Optical Properties

1.1 Luster

Vitreous, Greasy, Silky

Vitreous, Pearly

1.2 Pleochroism

AbsentWalter Schumann

Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael OâDonoghue

1.3 Dispersion

NoneNA

0.007 1

1.4 Transparency

Translucent

Transparent

1.5 Refractive Index

1.560-1.5711.560-1.640

1 3.25

1.6 Optic Character

Not Available

1.7 Crystal System

monoclinic

Not Available

1.8 Birefringence

0.008-0.0140.054-0.075

0 0.296

1.9 Clarity

Translucent

Transparent

Serpentine and Vivianite Optic Character

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

Similar to their colors, Serpentine and Vivianite 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.