Woodruffite from selected localities.
USA | |
| Frondel, C. (1953): New manganese oxides: hydrohausmannite and woodruffite. American Mineralogist, 38, 761-769.; Dunn (1995): Pt4: 606. |
Frondel, C. (1953): New manganese oxides: hydrohausmannite and woodruffite. American Mineralogist, 38, 761-769.; Baum, J.L.: The Sterling Hill mud zone: The Picking Table: 3(2): 8-10.; Dunn (1995): Pt4: 606. | |
Frondel, C. (1953): New manganese oxides: hydrohausmannite and woodruffite. American Mineralogist, 38, 761-769.; The Mineralogical Record, 19, 274.; Dunn (1995): Pt4: 606. |
Sterling Mine, Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA