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Wulfenite
Wulfenite

Bastnsite
Bastnsite



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Wulfenite
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Bastnsite

Wulfenite and Bastnsite Optical Properties

Optical Properties

Luster

Adamantine, Resinous
-

Pleochroism

Weak
-

Dispersion

0.030.02
0.005 1
👆🏻

Transparency

Transparent
-

Refractive Index

2.280-2.4051.72-1.82
1 3.25
👆🏻

Optic Character

-
-

Crystal System

tetragonal
-

Birefringence

0.122-9999
0 0.296
👆🏻

Clarity

Transparent
-

Wulfenite and Bastnsite Optic Character

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

Similar to their colors, Wulfenite and Bastnsite 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.