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Manganotantalite
Manganotantalite

Staurolite
Staurolite



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X
Manganotantalite
X
Staurolite

Manganotantalite and Staurolite Optical Properties

1 Optical Properties
1.1 Luster
Not Available
Resinous
1.2 Pleochroism
Sometimes strongArthur Thomas
X = colorless; Y = pale yellow; Z = golden yellow
1.3 Dispersion
NANA
Fluorite Optical Properties
0.007 1
1.4 Transparency
TransparentWalter Schumann, Gemstones of the world (2001) More from other references
Blue Chart Gem Identification (2010) More from other references
1.5 Refractive Index
2.19-2.341.736-1.762
Agate Opal
1 3.25
1.6 Optic Character
Not Available
Not Available
1.7 Crystal System
Not Available
monoclinic
1.8 Birefringence
0.0150.009-0.015
Achroite
0 0.296
1.9 Clarity
TransparentWalter Schumann
Blue Chart Gem Identification (2010) More from other references

Manganotantalite and Staurolite Optic Character

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

Similar to their colors, Manganotantalite and Staurolite 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.