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Goethite
Goethite

Wulfenite
Wulfenite



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Goethite
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Wulfenite

Goethite and Wulfenite Optical Properties

Optical Properties

Luster

Adamantine
Adamantine, Resinous

Pleochroism

VisibleArthur Thomas
Weak

Dispersion

0.050.03
0.005 1
👆🏻

Transparency

-
Transparent

Refractive Index

2.26-2.3982.280-2.405
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
tetragonal

Birefringence

0.1380.122
0 0.296
👆🏻

Clarity

-
Transparent

Goethite and Wulfenite Optic Character

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

Goethite and Wulfenite Transparency

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