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Beudantite
Beudantite

Bastnasite
Bastnasite



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Beudantite
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Bastnasite

Beudantite and Bastnasite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Resinous
visible
0.03
-
1.957
-
Trigonal
0.014
-
 
Vitreous, Greasy, Pearly
Faint
0.02
-
1.717-1.722
-
Hexagonal
0.100
TransparentUlrich Henn and Claudio C. Milisenda

Beudantite and Bastnasite Optic Character

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

Beudantite and Bastnasite Transparency

Similar to their colors, Beudantite 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, Beudantite is while Beudantite is in appearance.