| References: | Peterson, Nels P. & Swanson (1956), USGS Bull. 1027-H, Geology of the Christmas Copper Mine, Gila Co., AZ: 351, 363; Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 163, 166; Perry, D.V. (1969), Skarn genesis at the Christmas mine, Gila Co., AZ, Econ.Geol.: 64: 255-270; Galbraith, F.W. (1947), Minerals of AZ, AZ Bur. of Mines Bull. 153: 21; Knoerr, A. & M. Eigo (1963), Arizona's newest copper producer - The Christmas mine, Engr. Mining Jour.: 164: 55; Ross, C.P. (1925b), Geology of the Saddle Mountain and Banner mining districts, USGS Bull. 771; Tainter, S.L. (1948), Christmas copper deposit, Gila Co., AZ, US Bur. of Mines Rept. Inv. 4293; Galbraith, F.W. (1947), Minerals of AZ, AZ Bur. of Mines Bull. 153: 19. |