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Orphan Mine (Orphan lode), Grand Canyon Village, Orphan Mining District, Coconino County, Arizona, USAi
Regional Level Types
Orphan Mine (Orphan lode)Mine
Grand Canyon VillageVillage
Orphan Mining DistrictMining District
Coconino CountyCounty
ArizonaState
USACountry

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Latitude & Longitude (WGS84):
36° 3' 59'' North , 112° 9' 0'' West
Latitude & Longitude (decimal):
36.06667,-112.15000
GRN:
N25W65
Type:
Mine
Köppen climate type:
BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Grand Canyon1,460(2018)1.7km
Grand Canyon Village1,550(2006)2.3km
Tusayan567(2017)10.6km
Valle832(2011)45.9km
Mindat Locality ID:
19917
Long-form identifier:
mindat:1:2:19917:6
GUID (UUID V4):
0
Other/historical names associated with this locality:
Orphan N.P. 2004; Golden Crown Mining Co. property; Western Gold and Uranium property


A former U-Cu-V-Ag occurrence/mine with minor & trace commodities of Sb-Pb-Co-Au-Mn-Zn-Ag-Mo & baryte, located in the N½ sec. 14, T31N, R2E, G&SRM, 2.0 km (1.24 mi) NNW of Grand Canyon Village on the South Rim of the canyon itself, immediately West of Maricopa Point. Discovered by Daniel L. Hogan in 1893 as a copper claim and dubbed the 'Orphan lode' by him. Converted to a uranium mine in 1956 and closed in 1969. Owned by Western Gold & Uranium, Inc.

Local rocks are Pennsylvanian and Permian. Mineralization involves an ellipsoidal, pipe-like body of collapse breccia developed primarily in the Permian Coconino Sandstone (and Mescal limestone) associated with pyrite and other sulfides and sulfosalts of Cu-Pb-Zn-Co-Ni & Mo, and includes secondary copper minerals. Ore is disseminations and stringers on the pipe's periphery. Bleaching, argillization and carbonization extend into sediments as a function of permeability. Concentration process was bacteriological mobilization and enrichment of deposits from hydrothermal fluids. The strongest mineralization in most permeable areas around the periphery of the pipe.

Uraninite and secondary uranium minerals occur in a nearly vertical, circular, pipe-like body of brecciated, highly fractured Coconino Sandstone and Hermit Shale. The pipe bottoms in Redwa11 Limestone.

Workings include 3 small, original workings, including a main adit. The middle working has a main adit about 25 feet (ca. 8 m) long and about 15 feet (4.57 m) of workings branching off. The lower working adit is about 45 feet (ca. 14 m) long, turns and goes an additional 25 feet (ca. 8 m). There is a 1,600-foot deep shaft and crosscut more than 800 feet (ca. 244 m) long.

Production for the period 1956-1969 was 4,260,000 pounds (ca. 1,932 t) of U3O8, plus 6,680,000 pounds (ca. 3,030 t) of Cu, 107,000 ounces (ca. 4 t) of Ag and 3,400 pounds (1.54 t) of V2O5.

A total of 509,025 tons of ore @ 0.43 U3O8.

Select Mineral List Type

StandardDetailedGalleryStrunzChemical Elements

Detailed Mineral List:

ⓘAlum-(K)
Formula:KAl(SO4)2 · 12H2O
ⓘAnglesite
Formula:PbSO4
ⓘAnhydrite
Formula:CaSO4
ⓘAnkerite
Formula:Ca(Fe2+,Mg)(CO3)2
ⓘAragonite
Formula:CaCO3
ⓘArsenopyrite
Formula:FeAsS
Description: Occurs as impregnations in sandstone - lower adit.
ⓘAzurite
Formula:Cu3(CO3)2(OH)2
ⓘBaryte
Formula:BaSO4
Habit: Coarse crystals
Colour: Yellow
ⓘBieberite
Formula:CoSO4 · 7H2O
ⓘBornite
Formula:Cu5FeS4
Description: Rimmed by chalcopyrite or with chalcopyrite grains oriented bladed along (100) bornite cleavages.
ⓘBrochantite
Formula:Cu4(SO4)(OH)6
ⓘCalcite
Formula:CaCO3
ⓘCarnotite
Formula:K2(UO2)2(VO4)2 · 3H2O
ⓘCerussite
Formula:PbCO3
ⓘChalcanthite
Formula:CuSO4 · 5H2O
Description: Occurs as efflorescences - lower adit.
ⓘChalcocite
Formula:Cu2S
ⓘChalcopyrite
Formula:CuFeS2
Description: Occurs as impregnations in sandstone - lower adit; also disseminated grains, oriented bladed along (100) bornite cleavages, and as rims around bornite.
ⓘChrysocolla
Formula:Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x< 1
ⓘCovellite
Formula:CuS
ⓘDigenite
Formula:Cu9S5
ⓘDolomite
Formula:CaMg(CO3)2
ⓘEnargite
Formula:Cu3AsS4
ⓘErythrite
Formula:Co3(AsO4)2 · 8H2O
ⓘGalena
Formula:PbS
ⓘGersdorffite
Formula:NiAsS
ⓘGoethite
Formula:Fe3+O(OH)
ⓘGypsum
Formula:CaSO4 · 2H2O
Description: On adit walls with efflorescent Fe & Cu minerals.
ⓘHalotrichite
Formula:FeAl2(SO4)4 · 22H2O
ⓘHematite
Formula:Fe2O3
Description: As impregnations in sandstone - lower adit.
ⓘHexahydrite
Formula:MgSO4 · 6H2O
ⓘIlsemannite
Formula:Mo3O8 · nH2O
ⓘJarosite
Formula:KFe3+3(SO4)2(OH)6
ⓘKaolinite
Formula:Al2(Si2O5)(OH)4
ⓘLaumontite
Formula:CaAl2Si4O12 · 4H2O
ⓘ'Limonite'
ⓘMalachite
Formula:Cu2(CO3)(OH)2
ⓘMarcasite
Formula:FeS2
ⓘMetatorbernite
Formula:Cu(UO2)2(PO4)2 · 8H2O
ⓘMetazeunerite
Formula:Cu(UO2)2(AsO4)2 · 8H2O
ⓘMillerite
Formula:NiS
Description: Occurs in cavities in barite.
ⓘMolybdenite
Formula:MoS2
ⓘMuscovite
Formula:KAl2(AlSi3O10)(OH)2
ⓘMuscovite var. Illite
Formula:K0.65Al2.0[Al0.65Si3.35O10](OH)2
ⓘNative Copper
Formula:Cu
ⓘNickeline
Formula:NiAs
ⓘPararammelsbergite
Formula:NiAs2
ⓘ'Plagioclase'
Formula:(Na,Ca)[(Si,Al)AlSi2]O8
ⓘPyrite
Formula:FeS2
Description: Associated with Cu-U-Pb ores in Coconino Sandstone. Most abundant sulfide mineral. Early stage = finely-disseminated, strongly-zoned cubes, with cores of bravoite and siegenite. Later stage of massive, often highly-fractured material.
References:
(United States), 25(CONF-9305259-).
Isachsen, Y.T., et al (1955), Age and sedimentary environments of uranium host rocks, Colorado Plateau, Econ.Geol.: 50: 127-134
Granger, H.C. & R.B. Raup (1962), Reconnaissance study of uranium deposits in AZ, USGS Bull. 1147-A, A7-A12
Gornitz, V., et al (1988), Origin of the Orphan Mine breccia pipe uranium deposit, Grand Canyon, AZ, Process Mineralogy VII: Applications to Mineral Benficiation Technology and Mineral Exploration, A.H. Vassiliou, Hausen, D.M., and Carson, D.J.T., editors, The Metallurgical Society, Warrendale, PA: 281-301.
Wenrich, K. J., & Hlava, P. F. (1993). Nickel-cobalt-iron-copper sulfides and arsenides in solution-collapse breccia pipes, northwestern Arizona. Geological Society of America, Abstracts with Programs
Anthony, John W., Williams, Sidney A., Bideaux, Richard A., Grant, Raymond W. (1995)Mineralogy of Arizona (3rd ed.). University of Arizona Press.p.340
Gornitz, V. (2004), Grand Canyon Uranium: The Orphan Mine, Mineral News: 20(6): 1 & 3-5, 7..
Van Gosen, Bradley S., Hall, Susan M., Johnson, Craig A., Benzel, William M. (2025) Solution-collapse breccia pipe uranium deposits of the southern Colorado Plateau, northwestern Arizona, USA.Ore Geology Reviews, 181. 106590doi:10.1016/j.oregeorev.2025.106590
ⓘPyrite var. Bravoite
Formula:(Fe,Ni)S2
Description: As cores of cubic pyrite crystals with siegenite.
References:
(United States), 25(CONF-9305259-).
Gornitz, V., et al (1988), Origin of the Orphan Mine breccia pipe uranium deposit, Grand Canyon, AZ, Process Mineralogy VII: Applications to Mineral Benficiation Technology and Mineral Exploration, A.H. Vassiliou, Hausen, D.M., and Carson, D.J.T., editors, The Metallurgical Society, Warrendale, PA: 281-301.
Wenrich, K. J., & Hlava, P. F. (1993). Nickel-cobalt-iron-copper sulfides and arsenides in solution-collapse breccia pipes, northwestern Arizona. Geological Society of America, Abstracts with Programs
Gornitz, V. (2004), Grand Canyon Uranium: The Orphan Mine, Mineral News: 20(6): 1 & 3-5, 7..
Van Gosen, Bradley S., Hall, Susan M., Johnson, Craig A., Benzel, William M. (2025) Solution-collapse breccia pipe uranium deposits of the southern Colorado Plateau, northwestern Arizona, USA.Ore Geology Reviews, 181. 106590doi:10.1016/j.oregeorev.2025.106590
ⓘPyrolusite
Formula:Mn4+O2
ⓘQuartz
Formula:SiO2
ⓘQuartz var. Chalcedony
Formula:SiO2
ⓘRameauite
Formula:K2Ca(UO2)6O6(OH)4 · 6H2O
Description: Occurs among ores.
ⓘRammelsbergite
Formula:NiAs2
ⓘRhodochrosite
Formula:MnCO3
ⓘSiderite
Formula:FeCO3
ⓘSiegenite
Formula:CoNi2S4
Description: As cores of cubic pyrite crystals with bravoite.
ⓘSkutterudite
Formula:CoAs3
ⓘSmithsonite
Formula:ZnCO3
ⓘSphalerite
Formula:ZnS
ⓘ'Tennantite Subgroup'
Formula:Cu6(Cu4C2+2)As4S12S
ⓘTorbernite
Formula:Cu(UO2)2(PO4)2 · 12H2O
Description: Occurs in a vertical shear zone at portal of lower adit.
ⓘTyuyamunite
Formula:Ca(UO2)2(VO4)2 · 5-8H2O
ⓘUraninite
Formula:UO2
Description: Occurs fairly pure as disseminations and as veins & lenses up to several inches thick; as thin coatings around quartz grains; botryoidal clusters in massive ore.
ⓘUranophane
Formula:Ca(UO2)2(SiO3OH)2 · 5H2O
ⓘUranospinite
Formula:Ca(UO2)2(AsO4)2 · 10H2O
ⓘVaesite
Formula:NiS2
Habit: Brilliant, tiny (to 2 mm diameter)
Colour: White
Description: Tiny crystals perched on coarse, yellow barite crystals.
ⓘVillamanínite
Formula:(Cu,Ni,Co,Fe)S2
ⓘWulfenite
Formula:Pb(MoO4)
ⓘWupatkiite ?
Formula:(Co,Mg,Ni)Al2(SO4)4 · 22H2O
Description: Unconfirmed - analyses by Anatoly Kasatkin showed no trace of Co; the material was a mixture of halotrichite and potassium alum (http://www.mindat.org/mesg-7-155381.html).
ⓘZeunerite
Formula:Cu(UO2)2(AsO4)2 · 12H2O

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Copper1.AA.05Cu
Group 2 - Sulphides and Sulfosalts
ⓘChalcocite2.BA.05Cu2S
ⓘDigenite2.BA.10Cu9S5
ⓘBornite2.BA.15Cu5FeS4
ⓘCovellite2.CA.05aCuS
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘNickeline2.CC.05NiAs
ⓘMillerite2.CC.20NiS
ⓘGalena2.CD.10PbS
ⓘSiegenite2.DA.05CoNi2S4
ⓘMolybdenite2.EA.30MoS2
ⓘPyrite
var. Bravoite		2.EB.05a(Fe,Ni)S2
ⓘ2.EB.05aFeS2
ⓘVaesite2.EB.05aNiS2
ⓘVillamanínite2.EB.05a(Cu,Ni,Co,Fe)S2
ⓘMarcasite2.EB.10aFeS2
ⓘPararammelsbergite2.EB.10eNiAs2
ⓘRammelsbergite2.EB.15aNiAs2
ⓘArsenopyrite2.EB.20FeAsS
ⓘGersdorffite2.EB.25NiAsS
ⓘSkutterudite2.EC.05CoAs3
ⓘ'Tennantite Subgroup'2.GB.05Cu6(Cu4C2+2)As4S12S
ⓘEnargite2.KA.05Cu3AsS4
Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.Fe3+O(OH)
ⓘHematite4.CB.05Fe2O3
ⓘQuartz
var. Chalcedony		4.DA.05SiO2
ⓘ4.DA.05SiO2
ⓘPyrolusite4.DB.05Mn4+O2
ⓘUraninite4.DL.05UO2
ⓘIlsemannite4.FJ.15Mo3O8 · nH2O
ⓘRameauite4.GB.05K2Ca(UO2)6O6(OH)4 · 6H2O
ⓘCarnotite4.HB.05K2(UO2)2(VO4)2 · 3H2O
ⓘTyuyamunite4.HB.25Ca(UO2)2(VO4)2 · 5-8H2O
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘRhodochrosite5.AB.05MnCO3
ⓘSiderite5.AB.05FeCO3
ⓘSmithsonite5.AB.05ZnCO3
ⓘAnkerite5.AB.10Ca(Fe2+,Mg)(CO3)2
ⓘDolomite5.AB.10CaMg(CO3)2
ⓘAragonite5.AB.15CaCO3
ⓘCerussite5.AB.15PbCO3
ⓘAzurite5.BA.05Cu3(CO3)2(OH)2
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘAnhydrite7.AD.30CaSO4
ⓘAnglesite7.AD.35PbSO4
ⓘBaryte7.AD.35BaSO4
ⓘBrochantite7.BB.25Cu4(SO4)(OH)6
ⓘJarosite7.BC.10KFe3+3(SO4)2(OH)6
ⓘChalcanthite7.CB.20CuSO4 · 5H2O
ⓘHexahydrite7.CB.25MgSO4 · 6H2O
ⓘBieberite7.CB.35CoSO4 · 7H2O
ⓘHalotrichite7.CB.85FeAl2(SO4)4 · 22H2O
ⓘWupatkiite ?7.CB.85(Co,Mg,Ni)Al2(SO4)4 · 22H2O
ⓘAlum-(K)7.CC.20KAl(SO4)2 · 12H2O
ⓘGypsum7.CD.40CaSO4 · 2H2O
ⓘWulfenite7.GA.05Pb(MoO4)
Group 8 - Phosphates, Arsenates and Vanadates
ⓘErythrite8.CE.40Co3(AsO4)2 · 8H2O
ⓘTorbernite8.EB.05Cu(UO2)2(PO4)2 · 12H2O
ⓘUranospinite8.EB.05Ca(UO2)2(AsO4)2 · 10H2O
ⓘZeunerite8.EB.05Cu(UO2)2(AsO4)2 · 12H2O
ⓘMetatorbernite8.EB.10Cu(UO2)2(PO4)2 · 8H2O
ⓘMetazeunerite8.EB.10Cu(UO2)2(AsO4)2 · 8H2O
Group 9 - Silicates
ⓘUranophane9.AK.15Ca(UO2)2(SiO3OH)2 · 5H2O
ⓘMuscovite
var. Illite		9.EC.15K0.65Al2.0[Al0.65Si3.35O10](OH)2
ⓘ9.EC.15KAl2(AlSi3O10)(OH)2
ⓘKaolinite9.ED.05Al2(Si2O5)(OH)4
ⓘChrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
ⓘLaumontite9.GB.10CaAl2Si4O12 · 4H2O
Unclassified
ⓘ'Limonite'-
ⓘ'Plagioclase'-(Na,Ca)[(Si,Al)AlSi2]O8

List of minerals for each chemical element

HHydrogen
HⓘAzuriteCu3(CO3)2(OH)2
HⓘBieberiteCoSO4 · 7H2O
HⓘBrochantiteCu4(SO4)(OH)6
HⓘCarnotiteK2(UO2)2(VO4)2 · 3H2O
HⓘChalcanthiteCuSO4 · 5H2O
HⓘChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x< 1
HⓘErythriteCo3(AsO4)2 · 8H2O
HⓘGoethiteFe3+O(OH)
HⓘGypsumCaSO4 · 2H2O
HⓘHalotrichiteFeAl2(SO4)4 · 22H2O
HⓘHexahydriteMgSO4 · 6H2O
HⓘMuscovite var.IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
HⓘIlsemanniteMo3O8 · nH2O
HⓘJarositeKFe33+(SO4)2(OH)6
HⓘKaoliniteAl2(Si2O5)(OH)4
HⓘLaumontiteCaAl2Si4O12 · 4H2O
HⓘMalachiteCu2(CO3)(OH)2
HⓘMetatorberniteCu(UO2)2(PO4)2 · 8H2O
HⓘMetazeuneriteCu(UO2)2(AsO4)2 · 8H2O
HⓘMuscoviteKAl2(AlSi3O10)(OH)2
HⓘAlum-(K)KAl(SO4)2 · 12H2O
HⓘRameauiteK2Ca(UO2)6O6(OH)4 · 6H2O
HⓘTorberniteCu(UO2)2(PO4)2 · 12H2O
HⓘTyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
HⓘUranophaneCa(UO2)2(SiO3OH)2 · 5H2O
HⓘUranospiniteCa(UO2)2(AsO4)2 · 10H2O
HⓘZeuneriteCu(UO2)2(AsO4)2 · 12H2O
HⓘWupatkiite(Co,Mg,Ni)Al2(SO4)4 · 22H2O
CCarbon
CⓘAnkeriteCa(Fe2+,Mg)(CO3)2
CⓘAragoniteCaCO3
CⓘAzuriteCu3(CO3)2(OH)2
CⓘCalciteCaCO3
CⓘCerussitePbCO3
CⓘDolomiteCaMg(CO3)2
CⓘMalachiteCu2(CO3)(OH)2
CⓘRhodochrositeMnCO3
CⓘSideriteFeCO3
CⓘSmithsoniteZnCO3
OOxygen
OⓘAnglesitePbSO4
OⓘAnhydriteCaSO4
OⓘAnkeriteCa(Fe2+,Mg)(CO3)2
OⓘAragoniteCaCO3
OⓘAzuriteCu3(CO3)2(OH)2
OⓘBaryteBaSO4
OⓘBieberiteCoSO4 · 7H2O
OⓘBrochantiteCu4(SO4)(OH)6
OⓘCalciteCaCO3
OⓘCarnotiteK2(UO2)2(VO4)2 · 3H2O
OⓘCerussitePbCO3
OⓘChalcanthiteCuSO4 · 5H2O
OⓘQuartz var.ChalcedonySiO2
OⓘChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x< 1
OⓘDolomiteCaMg(CO3)2
OⓘErythriteCo3(AsO4)2 · 8H2O
OⓘGoethiteFe3+O(OH)
OⓘGypsumCaSO4 · 2H2O
OⓘHalotrichiteFeAl2(SO4)4 · 22H2O
OⓘHematiteFe2O3
OⓘHexahydriteMgSO4 · 6H2O
OⓘMuscovite var.IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
OⓘIlsemanniteMo3O8 · nH2O
OⓘJarositeKFe33+(SO4)2(OH)6
OⓘKaoliniteAl2(Si2O5)(OH)4
OⓘLaumontiteCaAl2Si4O12 · 4H2O
OⓘMalachiteCu2(CO3)(OH)2
OⓘMetatorberniteCu(UO2)2(PO4)2 · 8H2O
OⓘMetazeuneriteCu(UO2)2(AsO4)2 · 8H2O
OⓘMuscoviteKAl2(AlSi3O10)(OH)2
OⓘAlum-(K)KAl(SO4)2 · 12H2O
OⓘPyrolusiteMn4+O2
OⓘQuartzSiO2
OⓘRameauiteK2Ca(UO2)6O6(OH)4 · 6H2O
OⓘRhodochrositeMnCO3
OⓘSideriteFeCO3
OⓘSmithsoniteZnCO3
OⓘTorberniteCu(UO2)2(PO4)2 · 12H2O
OⓘTyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
OⓘUraniniteUO2
OⓘUranophaneCa(UO2)2(SiO3OH)2 · 5H2O
OⓘUranospiniteCa(UO2)2(AsO4)2 · 10H2O
OⓘWulfenitePb(MoO4)
OⓘZeuneriteCu(UO2)2(AsO4)2 · 12H2O
OⓘWupatkiite(Co,Mg,Ni)Al2(SO4)4 · 22H2O
OⓘPlagioclase(Na,Ca)[(Si,Al)AlSi2]O8
NaSodium
NaⓘPlagioclase(Na,Ca)[(Si,Al)AlSi2]O8
MgMagnesium
MgⓘAnkeriteCa(Fe2+,Mg)(CO3)2
MgⓘDolomiteCaMg(CO3)2
MgⓘHexahydriteMgSO4 · 6H2O
MgⓘWupatkiite(Co,Mg,Ni)Al2(SO4)4 · 22H2O
AlAluminium
AlⓘChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x< 1
AlⓘHalotrichiteFeAl2(SO4)4 · 22H2O
AlⓘMuscovite var.IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
AlⓘKaoliniteAl2(Si2O5)(OH)4
AlⓘLaumontiteCaAl2Si4O12 · 4H2O
AlⓘMuscoviteKAl2(AlSi3O10)(OH)2
AlⓘAlum-(K)KAl(SO4)2 · 12H2O
AlⓘWupatkiite(Co,Mg,Ni)Al2(SO4)4 · 22H2O
AlⓘPlagioclase(Na,Ca)[(Si,Al)AlSi2]O8
SiSilicon
SiⓘQuartz var.ChalcedonySiO2
SiⓘChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x< 1
SiⓘMuscovite var.IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
SiⓘKaoliniteAl2(Si2O5)(OH)4
SiⓘLaumontiteCaAl2Si4O12 · 4H2O
SiⓘMuscoviteKAl2(AlSi3O10)(OH)2
SiⓘQuartzSiO2
SiⓘUranophaneCa(UO2)2(SiO3OH)2 · 5H2O
SiⓘPlagioclase(Na,Ca)[(Si,Al)AlSi2]O8
PPhosphorus
PⓘMetatorberniteCu(UO2)2(PO4)2 · 8H2O
PⓘTorberniteCu(UO2)2(PO4)2 · 12H2O
SSulfur
SⓘAnglesitePbSO4
SⓘAnhydriteCaSO4
SⓘArsenopyriteFeAsS
SⓘBaryteBaSO4
SⓘBieberiteCoSO4 · 7H2O
SⓘBorniteCu5FeS4
SⓘPyrite var.Bravoite(Fe,Ni)S2
SⓘBrochantiteCu4(SO4)(OH)6
SⓘChalcopyriteCuFeS2
SⓘChalcanthiteCuSO4 · 5H2O
SⓘChalcociteCu2S
SⓘCovelliteCuS
SⓘDigeniteCu9S5
SⓘEnargiteCu3AsS4
SⓘGalenaPbS
SⓘGersdorffiteNiAsS
SⓘGypsumCaSO4 · 2H2O
SⓘHalotrichiteFeAl2(SO4)4 · 22H2O
SⓘHexahydriteMgSO4 · 6H2O
SⓘJarositeKFe33+(SO4)2(OH)6
SⓘMarcasiteFeS2
SⓘMilleriteNiS
SⓘMolybdeniteMoS2
SⓘAlum-(K)KAl(SO4)2 · 12H2O
SⓘPyriteFeS2
SⓘSiegeniteCoNi2S4
SⓘSphaleriteZnS
SⓘTennantite SubgroupCu6(Cu4C22+)As4S12S
SⓘVaesiteNiS2
SⓘVillamanínite(Cu,Ni,Co,Fe)S2
SⓘWupatkiite(Co,Mg,Ni)Al2(SO4)4 · 22H2O
KPotassium
KⓘCarnotiteK2(UO2)2(VO4)2 · 3H2O
KⓘMuscovite var.IlliteK0.65Al2.0[Al0.65Si3.35O10](OH)2
KⓘJarositeKFe33+(SO4)2(OH)6
KⓘMuscoviteKAl2(AlSi3O10)(OH)2
KⓘAlum-(K)KAl(SO4)2 · 12H2O
KⓘRameauiteK2Ca(UO2)6O6(OH)4 · 6H2O
CaCalcium
CaⓘAnhydriteCaSO4
CaⓘAnkeriteCa(Fe2+,Mg)(CO3)2
CaⓘAragoniteCaCO3
CaⓘCalciteCaCO3
CaⓘDolomiteCaMg(CO3)2
CaⓘGypsumCaSO4 · 2H2O
CaⓘLaumontiteCaAl2Si4O12 · 4H2O
CaⓘRameauiteK2Ca(UO2)6O6(OH)4 · 6H2O
CaⓘTyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
CaⓘUranophaneCa(UO2)2(SiO3OH)2 · 5H2O
CaⓘUranospiniteCa(UO2)2(AsO4)2 · 10H2O
CaⓘPlagioclase(Na,Ca)[(Si,Al)AlSi2]O8
VVanadium
VⓘCarnotiteK2(UO2)2(VO4)2 · 3H2O
VⓘTyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
MnManganese
MnⓘPyrolusiteMn4+O2
MnⓘRhodochrositeMnCO3
FeIron
FeⓘAnkeriteCa(Fe2+,Mg)(CO3)2
FeⓘArsenopyriteFeAsS
FeⓘBorniteCu5FeS4
FeⓘPyrite var.Bravoite(Fe,Ni)S2
FeⓘChalcopyriteCuFeS2
FeⓘGoethiteFe3+O(OH)
FeⓘHalotrichiteFeAl2(SO4)4 · 22H2O
FeⓘHematiteFe2O3
FeⓘJarositeKFe33+(SO4)2(OH)6
FeⓘMarcasiteFeS2
FeⓘPyriteFeS2
FeⓘSideriteFeCO3
FeⓘVillamanínite(Cu,Ni,Co,Fe)S2
CoCobalt
CoⓘBieberiteCoSO4 · 7H2O
CoⓘErythriteCo3(AsO4)2 · 8H2O
CoⓘSiegeniteCoNi2S4
CoⓘSkutteruditeCoAs3
CoⓘVillamanínite(Cu,Ni,Co,Fe)S2
CoⓘWupatkiite(Co,Mg,Ni)Al2(SO4)4 · 22H2O
NiNickel
NiⓘPyrite var.Bravoite(Fe,Ni)S2
NiⓘGersdorffiteNiAsS
NiⓘMilleriteNiS
NiⓘNickelineNiAs
NiⓘPararammelsbergiteNiAs2
NiⓘRammelsbergiteNiAs2
NiⓘSiegeniteCoNi2S4
NiⓘVaesiteNiS2
NiⓘVillamanínite(Cu,Ni,Co,Fe)S2
NiⓘWupatkiite(Co,Mg,Ni)Al2(SO4)4 · 22H2O
CuCopper
CuⓘAzuriteCu3(CO3)2(OH)2
CuⓘBorniteCu5FeS4
CuⓘBrochantiteCu4(SO4)(OH)6
CuⓘChalcopyriteCuFeS2
CuⓘChalcanthiteCuSO4 · 5H2O
CuⓘChalcociteCu2S
CuⓘChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x< 1
CuⓘCovelliteCuS
CuⓘNative CopperCu
CuⓘDigeniteCu9S5
CuⓘEnargiteCu3AsS4
CuⓘMalachiteCu2(CO3)(OH)2
CuⓘMetatorberniteCu(UO2)2(PO4)2 · 8H2O
CuⓘMetazeuneriteCu(UO2)2(AsO4)2 · 8H2O
CuⓘTennantite SubgroupCu6(Cu4C22+)As4S12S
CuⓘTorberniteCu(UO2)2(PO4)2 · 12H2O
CuⓘVillamanínite(Cu,Ni,Co,Fe)S2
CuⓘZeuneriteCu(UO2)2(AsO4)2 · 12H2O
ZnZinc
ZnⓘSmithsoniteZnCO3
ZnⓘSphaleriteZnS
AsArsenic
AsⓘArsenopyriteFeAsS
AsⓘEnargiteCu3AsS4
AsⓘErythriteCo3(AsO4)2 · 8H2O
AsⓘGersdorffiteNiAsS
AsⓘMetazeuneriteCu(UO2)2(AsO4)2 · 8H2O
AsⓘNickelineNiAs
AsⓘPararammelsbergiteNiAs2
AsⓘRammelsbergiteNiAs2
AsⓘSkutteruditeCoAs3
AsⓘTennantite SubgroupCu6(Cu4C22+)As4S12S
AsⓘUranospiniteCa(UO2)2(AsO4)2 · 10H2O
AsⓘZeuneriteCu(UO2)2(AsO4)2 · 12H2O
MoMolybdenum
MoⓘIlsemanniteMo3O8 · nH2O
MoⓘMolybdeniteMoS2
MoⓘWulfenitePb(MoO4)
BaBarium
BaⓘBaryteBaSO4
PbLead
PbⓘAnglesitePbSO4
PbⓘCerussitePbCO3
PbⓘGalenaPbS
PbⓘWulfenitePb(MoO4)
UUranium
UⓘCarnotiteK2(UO2)2(VO4)2 · 3H2O
UⓘMetatorberniteCu(UO2)2(PO4)2 · 8H2O
UⓘMetazeuneriteCu(UO2)2(AsO4)2 · 8H2O
UⓘRameauiteK2Ca(UO2)6O6(OH)4 · 6H2O
UⓘTorberniteCu(UO2)2(PO4)2 · 12H2O
UⓘTyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
UⓘUraniniteUO2
UⓘUranophaneCa(UO2)2(SiO3OH)2 · 5H2O
UⓘUranospiniteCa(UO2)2(AsO4)2 · 10H2O
UⓘZeuneriteCu(UO2)2(AsO4)2 · 12H2O

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

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References

Adler, H.H., 1963, Concepts of genesis of sandstone-type uranium ore deposits: Economic Geology: 58(6): 839-852.
Adler, H., Economic Geology: 58(6): 849-850.
US Atomic Energy Commission Preliminary Reconnaissance Report PRR-A-P-52.
Arizona Department of Mineral Resources Orphan Mine file.
U.S. Bureau of Land Management Mining District sheet 62.
US Atomic Energy Commission Preliminary Report 172-479: 2, 8, 9.
USGS Bright Angel, Arizona, quadrangle 15 minute topo map.
Grand Canyon NTMS.
Isachsen, Y.T., et al (1955), Age and sedimentary environments of uranium host rocks, Colorado Plateau, Economic Geology: 50: 127-134.
Kerr, P.F. (1958), Uranium emplacement in the Colorado Plateau: Geological Society of America Bulletin: 69(10): 1075-1111.
U.S. Atomic Energy Commission (1959), Guidebook to Uranium Deposits of Western United States, RME-141.
Magleby, D.N. (1961), Orphan lode uranium mine, Grand Canyon, Arizona: U.S. Atomic Energy Commission Report TM-134, 17 p.
Granger, H.C. & R.B. Raup (1962), Reconnaissance study of uranium deposits in Arizona, USGS Bulletin 1147-A: A7-A12.
Hiller, D. and Kulp, J. (1963).
Kofford (1969), Four Corners Geological Society Guidebook: 190-194.
Gornitz, V. & P.F. Kerr (1970), Uranium mineralization and alteration, Orphan Mine, Grand Canyon, Arizona, Economic Geology: 65: 751-768.
Keith (1970) Arizona Bureau of Mines Bulletin 182: 103-159, 202-289.
Rich, E. A., Holland, H. D., and Petersen, U. (1977) Hydrothermal Uranium Deposits, Elsevier, pp. 264.
Bowles (1977), USGS Circular 753: 25-27.
[1]Scarborough, Robert B. (1981), Radioactive occurrences and uranium production in Arizona, Arizona Bureau of Geology and Mineral Technology Report for U.S. Department of Energy (Atomic Energy Commission), GJBX-143. RME-2071: 157.
Chenoweth, W.L. (1986), The Orphan Lode mine, Grand Canyon, Arizona, a case history of a mineralized collapse-breccia pipe, USGS Open File Report 86-510.
Gornitz, V. (1986), Uranium mineralization at the Orphan mine breccia pipe, Grand Canyon, Arizona (abs.), Geological Society of America Abstracts with Programs: 18: 357.
Gornitz, V., et al (1988), Origin of the Orphan Mine breccia pipe uranium deposit, Grand Canyon, Arizona, Process Mineralogy VII: Applications to Mineral Benificiation Technology and Mineral Exploration, A.H. Vassiliou, Hausen, D.M., and Carson, D.J.T., editors, The Metallurgical Society, Warrendale, Pennsylvania: 281-301.
Wenrich, K.J., et al (1989), Uranium in Arizona, in: Geologic evolution of Arizona, J.P. Penney and S.J. Reynolds, editors, Arizona Geological Society Digest 17, Tucson: 759-794.
Niemuth, Nyal J., Phillips, Ken A. (1992, July) Copper Oxide Resources.Open-file Report 92-10. Arizona Department of Mines and Mineral Resourcesp.6 - Table 1
Wenrich, K.J., et al (1992), USGS Bulletin 1683-D: D2.
Wenrich, K. J., & Hlava, P. F. (1993). Nickel-cobalt-iron-copper sulfides and arsenides in solution-collapse breccia pipes, northwestern Arizona. Geological Society of America, Abstracts with Programs;(United States), 25(CONF-9305259-).
Anthony, John W., Williams, Sidney A., Bideaux, Richard A., Grant, Raymond W. (1995)Mineralogy of Arizona (3rd ed.). University of Arizona Press.
Gornitz, V. (2004), Grand Canyon Uranium: The Orphan Mine, Mineral News: 20(6): 1 & 3-5
Lewis, S.R., Simonetti, A., Corcoran, L., Simonetti, S.S., Dorais, C., Burns, P.C. (2020) The Role of Continental Crust in the Formation of Uraninite-Based Ore Deposits. Minerals: 10: 136.
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