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Manganotantalite and Esperite Optical Properties


Esperite and Manganotantalite Optical Properties


Optical Properties

Luster
Not Available   
Vitreous   

Pleochroism
Sometimes strongArthur Thomas   
colorless.   

Dispersion
Not Available   
Not Available   

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

Refractive Index
2.19-2.34   
1.760-1.774   

Optic Character
Not Available   
Not Available   

Crystal System
Not Available   
monoclinic   

Birefringence
0.015   
0.012   

Clarity
TransparentWalter Schumann   
OpaqueAnthony et al   

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Manganotantalite and Esperite Optic Character

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

Similar to their colors, Manganotantalite and Esperite 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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