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Purpurite
Purpurite

Violane
Violane



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Purpurite
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Violane

Purpurite and Violane Optical Properties

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Optical Properties

Luster

-
-

Pleochroism

StrongArthur Thomas
-

Dispersion

0.010.03
0.005 1
👆🏻

Transparency

TranslucentWalter Schumann
Translucent

Refractive Index

1.85-1.921.668-1.703
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
-

Birefringence

0.0700.024-0.030
0 0.296
👆🏻

Clarity

TranslucentWalter Schumann
Translucent

Purpurite and Violane Optic Character

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

Purpurite and Violane Transparency

Similar to their colors, Purpurite and Violane 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, Purpurite is TranslucentWalter Schumann while Purpurite is TranslucentWalter Schumann in appearance.