Ref.: Reed, Juliet C. (1976), Annotated Biblio. of Minerals New to the PA List 1965-1974, The Min. Soc. of PA, Inc.: 51; Smith, R.C., II (1974), "Interesting Mins. from PA Zinc-Lead Occurrences," PA Geol., Vol. 5(3):9; Grant, RAymond W. (Sep, 1974), "Pennsylvania Minerals (PM),", PM(141), Keystone Newsletter. Host rock is limestone breccia, Trenton Group (?) (Ordovician).
