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Jadeite and Bastnasite Optical Properties


Bastnasite and Jadeite Optical Properties


Optical Properties

Luster
Pearly   
Vitreous, Greasy, Pearly   

Pleochroism
NilArthur Thomas   
Faint   

Dispersion
Not Available   
Not Available   

Transparency
Translucent   
Gemmological Tables (2004) More from other references   

Refractive Index
1.652-1.688   
1.717-1.722   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
Hexagonal   

Birefringence
0.013-0.020   
0.100   

Clarity
Translucent   
TransparentUlrich Henn and Claudio C. Milisenda   

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Jadeite and Bastnasite Optic Character

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

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Jadeite and Bastnasite Transparency

Similar to their colors, Jadeite 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, Jadeite is Translucent while Jadeite is Translucent in appearance.

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