Strongly oxidizing, low-temperature hydrothermal alteration. Found as an overgrowth on collinsite, fairfieldite, whitlockite, and other phosphates on a fracture surface the cuts an altered nodule of lithophllite.
Approved IMA 1999 (Dana # Added)
Tanco pegmatite at Bernic Lake, southeastern Maitoba, Canada. Link to MinDat.org Location Data.
Named for mineralogist T. Scott Ercit (1957-) of the Canadian Museum of Nature, Ottawa, Canada.