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Wulfenite
Wulfenite

Apophyllite
Apophyllite



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Wulfenite
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Apophyllite

Wulfenite and Apophyllite Optical Properties

Optical Properties

Luster

Adamantine, Resinous
Vitreous, Pearly

Pleochroism

Weak
Dichroic (colorless)

Dispersion

0.030.01
0.005 1
👆🏻

Transparency

Transparent
Transparent, Translucent

Refractive Index

2.280-2.4051.530-1.543
1 3.25
👆🏻

Optic Character

-
Uniaxial/-

Crystal System

tetragonal
tetragonal

Birefringence

0.1220.000-0.003
0 0.296
👆🏻

Clarity

Transparent
Transparent

Wulfenite and Apophyllite Optic Character

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

Wulfenite and Apophyllite Transparency

Similar to their colors, Wulfenite and Apophyllite 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.