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Spodumene and Manganotantalite Optical Properties


Manganotantalite and Spodumene Optical Properties


Optical Properties

Luster
Vitreous   
Not Available   

Pleochroism
Strong in kunzite: α-purple   
Sometimes strongArthur Thomas   

Dispersion
0.02   
22
Not Available   

Transparency
Transparent   
TransparentWalter Schumann, Gemstones of the world (2001) More from other references   

Refractive Index
1.657-1.681   
2.19-2.34   

Optic Character
Not Available   
Not Available   

Crystal System
monoclinic   
Not Available   

Birefringence
0.014-0.018   
0.015   

Clarity
Gems   
TransparentWalter Schumann   

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Spodumene and Manganotantalite Optic Character

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

Similar to their colors, Spodumene and Manganotantalite 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, Spodumene is Transparent while Spodumene is Transparent in appearance.

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