Covellite from selected localities.
||Minerals of the Ground Hog Mine Grant County Ron Gibbs Rocks & Minerals 67:5 pp 294-297; Lasky, S. G., (1930) Geology and Ore Deposits of the Ground Hog Mine, Central District, Grant County, New Mexico. NMBMGMR Circular 2|
|Lasky, Samuel Grossman (1936) Geology and ore deposits of the Bayard area, Central Mining District, New Mexico. USGS Bulletin 870|