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Manganotantalite
Manganotantalite

Zincite
Zincite



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Manganotantalite
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Zincite

Manganotantalite and Zincite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Subadamantine, Resinous
1.2 Pleochroism
Sometimes strongArthur Thomas
Very weak
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
TransparentRobert C. Kammerling, The Journal of Gemmology (1995) More from other references
1.5 Refractive Index
2.19-2.342.013-2.029
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Hexagonal
1.8 Birefringence
0.0150.016
Achroite
0 0.296
1.9 Clarity
TransparentWalter Schumann
TransparentRobert C. Kammerling

Manganotantalite and Zincite Optic Character

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

Manganotantalite and Zincite Transparency

Similar to their colors, Manganotantalite and Zincite 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.