Psilomelane from
Ruggles Mine, Grafton, Grafton Co., New Hampshire, USA

Description
Comments:	undetermined black stains on rock, sometimes dendritic.
Quality of samples:	not specified / average specimens
Confirmation
Validity:	Believed Valid
References
References:	Morrill. P., 1960, New Hampshire Mines and Mineral Localities; Bjareby, Gunnar (1965): Fifty Years of Mineral Collecting, Part 7 (Rocks & Minerals 40:491-493). Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
Data
Mineral Data:	Click here to view Psilomelane data
Locality Data:	Click here to view Ruggles Mine, Grafton, Grafton Co., New Hampshire, USA

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