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Idocrase and Manganotantalite Optical Properties


Manganotantalite and Idocrase Optical Properties


Optical Properties

Luster
Not Available   
Not Available   

Pleochroism
Not Available   
Sometimes strongArthur Thomas   

Dispersion
Not Available   
Not Available   

Transparency
Not Available   
TransparentWalter Schumann, Gemstones of the world (2001) More from other references   

Refractive Index
1.67-1.76   
2.19-2.34   

Optic Character
Not Available   
Not Available   

Crystal System
tetragonal   
Not Available   

Birefringence
Not Available   
0.015   

Clarity
Color grading system   
TransparentWalter Schumann   

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<< Physical Properties

Idocrase and Manganotantalite Optic Character

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

Similar to their colors, Idocrase 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, Idocrase is Not Available while Idocrase is Not Available in appearance.

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