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Bastnasite and Linarite Optical Properties


Linarite and Bastnasite Optical Properties


Optical Properties

Luster
Vitreous, Greasy, Pearly   
Sub-Adamantine, Vitreous   

Pleochroism
Faint   
X = pale blue; Y = blue; Z = Prussian blue   

Dispersion
Not Available   
Not Available   

Transparency
Gemmological Tables (2004) More from other references   
Transparent   

Refractive Index
1.717-1.722   
1.809-1.859   

Optic Character
Not Available   
Not Available   

Crystal System
Hexagonal   
monoclinic   

Birefringence
0.100   
0.050   

Clarity
TransparentUlrich Henn and Claudio C. Milisenda   
Transparent   

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Bastnasite and Linarite Optic Character

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

Similar to their colors, Bastnasite and Linarite 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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Red Gemstones


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