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Mohawkite
Mohawkite

Vivianite
Vivianite



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Mohawkite
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Vivianite

Mohawkite and Vivianite Optical Properties

Optical Properties

Luster

-
Vitreous, Pearly

Pleochroism

-
Anomalous plechroism is strong with colours deep blue/pale yellowish green/yellowish green.Michael O’Donoghue

Dispersion

0.020.03
0.005 1
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Transparency

-
Transparent

Refractive Index

-99991.560-1.640
1 3.25
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Optic Character

-
-

Crystal System

-
-

Birefringence

-99990.054-0.075
0 0.296
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Clarity

-
Transparent

Mohawkite and Vivianite Optic Character

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

Mohawkite and Vivianite Transparency

Similar to their colors, Mohawkite 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, Mohawkite is while Mohawkite is in appearance.