| Reference List: | Emmerling.
Karsten (1800): 54.
Karsten (1808): 100.
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: 668 (psilomelane); 712 (hausmannite).
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