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Arfvedsonite
Arfvedsonite

Manganotantalite
Manganotantalite



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Arfvedsonite
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Manganotantalite

Arfvedsonite and Manganotantalite Optical Properties

1 Optical Properties
1.1 Luster
Vitreous
Not Available
1.2 Pleochroism
Strong: Blue-greens
Sometimes strongArthur Thomas
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
Not Available
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
1.5 Refractive Index
1.652-1.6992.19-2.34
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
monoclinic
Not Available
1.8 Birefringence
Not Available0.015
Achroite
0 0.296
1.9 Clarity
Not Available
TransparentWalter Schumann

Arfvedsonite and Manganotantalite Optic Character

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

Arfvedsonite and Manganotantalite Transparency

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