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Eschwegite

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Colour:	Dark reddish gray; dark ...	Hardness:	5½
Name:	After Baron W.L. von Eschwege (1777-1855).

A doubtful species. Probably related to euxenite series.

Found as pebbles in the upper Rio Doce, Minas Gerais, Brazil.

Classification of Eschwegite
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Physical Properties of Eschwegite
Colour:	Dark reddish gray; dark red (transmitted light)
Hardness (Mohs):	5½
Fracture:	Conchoidal
Density (measured):	5.87 g/cm³
Optical Data of Eschwegite
Type:	Isotropic
Other Information
Health Warning:	No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.
References for Eschwegite
Reference List: - +	Guimarães (1926), Bol. Inst. Brasil. Sc.: 2: 1. 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: 792-793.
Internet Links for Eschwegite
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