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Bastnasite and Datolite Optical Properties


Datolite and Bastnasite Optical Properties


Optical Properties

Luster
Vitreous, Greasy, Pearly   
Vitreous   

Pleochroism
Faint   
NilArthur Thomas   

Dispersion
Not Available   
0.02   
23

Transparency
Gemmological Tables (2004) More from other references   
Transparent   

Refractive Index
1.717-1.722   
1.621-1.675   

Optic Character
Not Available   
Not Available   

Crystal System
Hexagonal   
monoclinic   

Birefringence
0.100   
0.044   

Clarity
TransparentUlrich Henn and Claudio C. Milisenda   
Transparent   

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Bastnasite and Datolite Optic Character

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

Similar to their colors, Bastnasite and Datolite 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, Bastnasite is Gemmological Tables (2004) More from other references while Bastnasite is Gemmological Tables (2004) More from other references in appearance.

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