Eumanite

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Name:	Named by Charles Upham Shepard in 1851 from the Greek eu and manos for "good" and "rare". Dana (1851) suggested that eumanite was brookite, but the crystallographic and physical descriptions suggest that the mineral was actually columbite-(Mn) or tantalite-(Mn), which would have been new species if properly characterized.
Synonym of:	Manganocolumbite-Manganotantalite series

Minute crystals occurring with rubellite and microlite in pegmatite, Chesterfield, MA.

References for Eumanite
Reference List: - +	Shepard, Charles Upham, 1850, Eumanite. An Account of Several New Mineral Species, Proceedings of the American Association for the Advancement of Science, third meeting, p. 317-318. Shepard, Charles Upham, 1851, Eumanite, Treatise on Mineralogy, part one, p. 285. Dana, James D., 1851, On the Crystallographic Identity of Eumanite and Brookite, American Journal of Science, v. 12, second series, p. 397-398. Palache, Charles, Harry Berman & Clifford Frondel, 1944, The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 588.
Internet Links for Eumanite
Search Engines:	Look for Eumanite on Google Look for Eumanite images on Google
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Mineral:
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Eumanite

References for Eumanite

Internet Links for Eumanite