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Wulfenite
Wulfenite

Axinite
Axinite



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Wulfenite
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Axinite

Wulfenite and Axinite Optical Properties

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Optical Properties

Luster

Adamantine, Resinous
Vitreous

Pleochroism

Weak
Strong

Dispersion

0.030.02
0.005 1
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Transparency

Transparent
-

Refractive Index

2.280-2.4051.656-1.704
1 3.25
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Optic Character

-
Biaxial/+

Crystal System

tetragonal
Triclinic

Birefringence

0.1220.009-0.012
0 0.296
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Clarity

Transparent
TransparentUlrich Henn and Claudio C. Milisenda

Wulfenite and Axinite Optic Character

Wulfenite and Axinite optical properties play a significant role while distinguishing these gemstones from each other. These properties are influenced by the Wulfenite and Axinite 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 Axinite 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. Axinite has Biaxial/+ character.

Wulfenite and Axinite Transparency

Similar to their colors, Wulfenite and Axinite 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.