2007-01-032022-02-032007-01-032022-02-03https://hdl.handle.net/11124/72263.9 x 3.6 x 2.4 in.Copy of image held in the Russell L. and Lyn Wood Mining History Archive, Arthur Lakes Library, Colorado School of Mines.Donor: Front Range Minerals, Golden, CO.The mineral specimen comes from the Calumet Iron Mine in the Calumet district, Chaffee County, Colorado. The Mine was located in 1880 and operated for iron by the Colorado Fuel & Iron Company from 1881-1889.Digital image copyright owned by Front Range Minerals, Golden, CO.Mineral and rock specimensStillImage