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Manganotantalite
Manganotantalite

Ammolite
Ammolite



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Manganotantalite
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Ammolite

Manganotantalite and Ammolite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Silky, Vitreous
1.2 Pleochroism
Sometimes strongArthur Thomas
None
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
Not Available
1.5 Refractive Index
2.19-2.341.520-1.670
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
Trigonal
1.8 Birefringence
0.0150.135-0.145
Achroite
0 0.296
1.9 Clarity
TransparentWalter Schumann
Not Available

Manganotantalite and Ammolite Optic Character

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

Similar to their colors, Manganotantalite and Ammolite 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.