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Eudialyte
Eudialyte

Bastnasite
Bastnasite



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Eudialyte
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Bastnasite

Eudialyte and Bastnasite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous
Weak: O= colorless
0.01
Translucent
1.591-1.633
-
Trigonal
0.003-0.010
Translucent
 
Vitreous, Greasy, Pearly
Faint
0.02
-
1.717-1.722
-
Hexagonal
0.100
TransparentUlrich Henn and Claudio C. Milisenda

Eudialyte and Bastnasite Optic Character

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

Eudialyte and Bastnasite Transparency

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