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The Plumbago North pegmatite, Maine, USA: a new potential lithium resource
  • February 6, 2020
  • William B. "Skip" Simmons; Alexander U. Falster; Gary Freeman
  • Mineralium Deposita
Giant spodumene and montebrasite crystals from the Plumbago North pegmatite, Oxford County, Maine
  • September 30, 2019
  • William B. "Skip" Simmons; Alexander U. Falster; James W. Nizamoff; Gary Freeman
  • The Canadian Mineralogist

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