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Narsarsukite
Narsarsukite

Bastnasite
Bastnasite



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Narsarsukite
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Bastnasite

Narsarsukite and Bastnasite Optical Properties

Optical Properties

Luster

Pleochroism

Dispersion

Transparency

Refractive Index

Optic Character

Crystal System

Birefringence

Clarity

 
Vitreous, Pearly
Weak; O = colorless to yellow; E = colorless to honey-yellow
0.02
Transparent, Translucent
1.610-1.647
-
tetragonal
0.021
Transparent
 
Vitreous, Greasy, Pearly
Faint
0.02
-
1.717-1.722
-
Hexagonal
0.100
TransparentUlrich Henn and Claudio C. Milisenda

Narsarsukite and Bastnasite Optic Character

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

Narsarsukite and Bastnasite Transparency

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