Description
Robert T. Ellis
Commodities
PrimaryFluorine-Fluorite
SecondaryManganese, Tungsten, Copper, Gold, Silver
TertiaryBeryllium
Commodity typeB
Deposit
Deposit sizeS
WorkingsSurface/Underground
Orebody formLENSES
Ore controlFluorspar Minerals Form Lenticular Veins And Pockets Along Fault Breccia Zones And Fissures In Basalt
Materials
Ore mineralsBertrandite, Fluorite, Psilomelane
GangueOlivine, Quartz
Geology
Host rockBasalt
Associated rockBasalt · Tertiary Volcanic Flows
StructureWell-Jointed Basalt In Northerly And Easterly Directions; Undulating Contact Between Upper Dark Red Basaltic Flow And Underlying Greenish Basaltic Flow, Fluorspar Occurs In Fissure Veins Interlaced With Network Of Iron-Stained Quartz Veinlets
Tectonic settingMule Creek Mountain Foothills
AlterationFerromagnesian Minerals Alterred To Iron Oxide And Carbonate Of Dolomitic Composition; Devitrified And Hydrothermally Alterred Rhyolitic Tuff On Claim No. 2
Economic & production
Development statusPast Producer
First production1917
Last production1955
Discovery year1937
Identification
Deposit ID10048298
MRDS IDM800430
Alternate namesEllis Shaft, Sydney Mine, Billingsley Fluorspar Mines
RegionNA
Data scoreA
Coordinates32.86039, -109.0762
References
USGS STRATEGIC MINERALS INVESTIGATION PRELIMINARY REPORT 3-207.USBM FILES, FOURTH OF JULY MINE.ARIZONA DEPARTMENT OF MINERAL RESOURCES, P. 23-24.ARIZONA DEPARTMENT OF MINERAL RESOURCES, MINERAL AVAILABILITY SYSTEM, ARIZONA FLUORSPAR; FOURTH OF JULY MINE; 1976.ARIZONA DEPARTMENT OF MINERAL RESOURCES FILE DATA FOURTH OF JULY MINE (SYDNEY, BILLINGSLEY FLUORSPAR MINES AND MILL, ARIZONA EASTERN FLUORSPAR CORPORATION).ABGMT CLIPPINGS FILE, ARIZONA EASTERN FLUORSPAR CO.ARIZ BUR MINES BULL 180, P. 349-352.HEWITT, D.F., AND FLEISCHER, M., 1960, DEPOSITS OF MANGANESE OXIDES: ECON. GEOL., V. 55, P. 1-55.LEMMON, D.M., AND TWETO, O.L., 1962, TUNGSTEN IN THE U.S.: USGS MAP MR-25.SAWYER, M.B., GURMENDI, A.C., DALEY, M.R., AND HOWELL, S.B., 1992, PRINCIPAL DEPOSITS OF STRATEGIC AND CRITICAL MINERALS IN ARIZONA: UNITED STATES BUREAU OF MINES SPECIAL PUBLICATION, 334 P.PHILLIPS, K.A., 1987, ARIZONA INDUSTRIAL MINERALS: ARIZONA DEPARTMENT OF MINES AND MINERAL RESOURCES MINERAL REPORT 4, 185 P.CIMRIU.S.G.S. STRATEGIC MINERALS INVESTIGATION PRELIMINARY REPORT 3-207.