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Wulfenite
Wulfenite

Omphacite
Omphacite



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Wulfenite
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Omphacite

Wulfenite and Omphacite Optical Properties

Optical Properties

Luster

Adamantine, Resinous
Vitreous

Pleochroism

Weak
Weak: colorless -- very pale green -- very pale green

Dispersion

0.030.02
0.005 1
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Transparency

Transparent
TranslucentAnthony et al

Refractive Index

2.280-2.4051.662-1.723
1 3.25
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Optic Character

-
-

Crystal System

tetragonal
-

Birefringence

0.122-9999
0 0.296
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Clarity

Transparent
TranslucentAnthony et al

Wulfenite and Omphacite Optic Character

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

Wulfenite and Omphacite Transparency

Similar to their colors, Wulfenite and Omphacite 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, Wulfenite is Transparent while Wulfenite is Transparent in appearance.