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Title: Psilomelane
Item Name: Mineral


Nodule of Psilomelane (a mixture of manganese oxides), from Georgia. Part of the T.H. Riley collection, transferred from Doncaster Museum in 1963. Psilomelane is a secondary mineral, dark grey to black in colour, found in sediments or in quartz veins.

ID_Number: ERYMS : 1996.1186.32