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Bastnasite
Bastnasite

Chlorapatite
Chlorapatite



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Bastnasite
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Chlorapatite
Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Greasy, Pearly
Faint
0.02
-
1.717-1.722
-
Hexagonal
0.100
TransparentUlrich Henn and Claudio C. Milisenda
 
-
Weak to moderate; in pale colors.
0.03
Transparent
1.665-1.667
-
-
-9999
Transparent