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Dark reddish gray; dark ...
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 URL:
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Physical Properties of Eschwegite

Dark reddish gray; dark red (transmitted light)
Hardness (Mohs):
5.87 g/cm3 (Measured)    

Optical Data of Eschwegite


Other Information

Health Risks:
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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