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Wavellite
Wavellite

Bastnasite
Bastnasite



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Wavellite
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Bastnasite

Wavellite and Bastnasite Optical Properties

Optical Properties

Luster

Vitreous, Resinous, Pearly
Vitreous, Greasy, Pearly

Pleochroism

Weak
Faint

Dispersion

0.020.02
0.005 1
👆🏻

Transparency

-
-

Refractive Index

1.518-1.5611.717-1.722
1 3.25
👆🏻

Optic Character

-
-

Crystal System

Orthorhombic
Hexagonal

Birefringence

0.0250.100
0 0.296
👆🏻

Clarity

-
TransparentUlrich Henn and Claudio C. Milisenda

Wavellite and Bastnasite Optic Character

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

Wavellite and Bastnasite Transparency

Similar to their colors, Wavellite and Bastnasite 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, Wavellite is while Wavellite is in appearance.