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Wulfenite
Wulfenite

Amethyst
Amethyst



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Wulfenite
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Amethyst

Wulfenite and Amethyst Optical Properties

Optical Properties

Luster

Adamantine, Resinous
Vitreous

Pleochroism

Weak
None

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

Transparent
Transparent, Transparent to translucent

Refractive Index

2.280-2.4051.544-1.553
1 3.25
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Optic Character

-
-

Crystal System

tetragonal
Trigonal

Birefringence

0.1220.009
0 0.296
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Clarity

Transparent
Transparent

Wulfenite and Amethyst Optic Character

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

Similar to their colors, Wulfenite and Amethyst 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.