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Manganotantalite and Parisite Optical Properties


Parisite and Manganotantalite Optical Properties


Optical Properties

Luster
Not Available   
Not Available   

Pleochroism
Sometimes strongArthur Thomas   
Not Available   

Dispersion
Not Available   
Not Available   

Transparency
TransparentWalter Schumann, Gemstones of the world (2001) More from other references   
Gemmological Tables (2004) More from other references   

Refractive Index
2.19-2.34   
1.671-1.771   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
Not Available   

Birefringence
0.015   
0.099-0.100   

Clarity
TransparentWalter Schumann   
TransparentUlrich Henn and Claudio C. Milisenda   

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Manganotantalite and Parisite Optic Character

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

Similar to their colors, Manganotantalite and Parisite 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, Manganotantalite is Gemstones of the world (2001) More from other references and TransparentWalter Schumann while Manganotantalite is Gemstones of the world (2001) More from other references and TransparentWalter Schumann in appearance.

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Red Gemstones


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