2007-01-032022-02-032007-01-032022-02-03https://hdl.handle.net/11124/71564.8 x 3.5 x 2.8 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 Yukon Mine, located near Howardsville in the Cement Creek area northwest of Silverton in the Animas mining district, San Juan County, Colorado. The Yukon was a tungsten mine.Digital image copyright owned by Front Range Minerals, Golden, CO.Mineral and rock specimensManganoan calcite after an unknown mineral with fluorite: Colorado, San Juan County, Silverton, Yukon MineStillImage