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Pyrrhotite from Middlesex Co., Massachusetts, USA

USA
 
  • Massachusetts
    • Middlesex Co.
      • Ashland
Gleba, 1978. Massachusetts Mineral & Fossil Localities
      • Chelmsford
Gleba, P. (1978) Massachusetts Mineral and Fossil Localities. Barton, W.R., Goldsmith, C.E. (1968) New England Beryllium Investigations. U.S. Depaartment of the Interior, Bureau of Mines Report of investigations 7070. 177 pages and maps.
      • Dracut
Skehan, James. Roadside Geology of Massachusetts, 2001.; American Mineralogist (1930) 15: 1-22
 
Mineral and/or Locality  
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