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Ammolite
Ammolite

Manganotantalite
Manganotantalite



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Ammolite
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Manganotantalite

Ammolite and Manganotantalite Optical Properties

1 Optical Properties
1.1 Luster
Silky, Vitreous
Not Available
1.2 Pleochroism
None
Sometimes strongArthur Thomas
1.3 Dispersion
Albite Optical ..
Not Available
Rank: N/A (Overall)
Not Available
Rank: N/A (Overall)
Fluorite Optical Properties
1.4 Transparency
Not Available
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
1.5 Refractive Index
1.520-1.670
2.19-2.34
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Trigonal
Not Available
1.8 Birefringence
0.135-0.145
0.015
1.9 Clarity
Not Available
TransparentWalter Schumann

Ammolite and Manganotantalite Optic Character

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

Ammolite and Manganotantalite Transparency

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

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