| References: | Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 278; Schaller, W.T. (1932), Chemical composition of cuprotungstite, Am.Min.: 17: 234-237; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 82; Hess, Frank L. (1917), Tungsten minerals and deposits, USGS Bull. 652: 25 (Plate XVII). |