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Murphy Mine (Black Point Mine; Black Point-Murphy Mine), Cameron, Cameron Mining District, Coconino Co., Arizona, USAi
Regional Level Types
Murphy Mine (Black Point Mine; Black Point-Murphy Mine)Mine
CameronTown
Cameron Mining DistrictMining District
Coconino Co.County
ArizonaState
USACountry

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Key
Latitude & Longitude (WGS84):
35° 42' 22'' North , 111° 18' 53'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Cameron885 (2016)20.8km
Moenkopi964 (2011)45.8km
Tuba City8,611 (2011)48.1km


An U occurrence/mine located in the NW¼ sec. 22, T27N, R10E, G&SRM.

Mineralization is an U deposit comprised of scattered channel deposits associated with abundant carbonized logs and plant remains in fine- to medium-grained sandstone and mudstone of the basal Petrified Forest Member and upper Shinarump Member. Some migration of uranium mineralization was found in Pleistocene gravels. Minera1s coating grains include, meta-autunite, uranophane, betauranophane, alunite, schoepite, tyuyamunite, betazippeite, cobalt (?) and gypsum.

Workings include surface openings comprised of a pit that has since been destroyed by a gravel operation.

Production was 1,769 tons of ore @ 0.21% U3O8; 0.04% V2O5 (1956-1958).

Regions containing this locality

North America PlateTectonic Plate
Colorado Plateau, USAPlateau

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


7 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Alunite
Formula: KAl3(SO4)2(OH)6
Description: With secondary uranium minerals in Pleistocene gravels.
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 106; Austin, S.R. (1964), Mineralogy of the Cameron area, Coconino Co., AZ, US Atomic Energy Comm. RME 99, Tech. Inf. Serv., Oak Ridge, TN: 99.
Gypsum
Formula: CaSO4 · 2H2O
Description: With secondary uranium minerals in Pleistocene gravels.
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 106; Austin, S.R. (1964), Mineralogy of the Cameron area, Coconino Co., AZ, US Atomic Energy Comm. RME 99, Tech. Inf. Serv., Oak Ridge, TN: 99.
Meta-autunite
Formula: Ca(UO2)2(PO4)2 · 6-8H2O
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 294.
Schoepite
Formula: (UO2)8O2(OH)12 · 12H2O
Description: Sparsely distributed in Pleistocene gravels.
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 364; Austin, S.R. (1964), Mineralogy of the Cameron area, Coconino Co., AZ, US Atomic Energy Comm. RME 99, Tech. Inf. Serv., Oak Ridge, TN: 99.
Tyuyamunite
Formula: Ca(UO2)2(VO4)2 · 5-8H2O
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 405; Austin, S.R. (1964), Mineralogy of the Cameron area, Coconino Co., AZ, US Atomic Energy Comm. RME 99, Tech. Inf. Serv., Oak Ridge, TN: 99.
Uranophane
Formula: Ca(UO2)2(SiO3OH)2 · 5H2O
Description: Intimately mixed with uranophane-beta in Pleistocene gravels.
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 408; Austin, S.R. (1964), Mineralogy of the Cameron area, Coconino Co., AZ, US Atomic Energy Comm. RME 99, Tech. Inf. Serv., Oak Ridge, TN: 99.
Uranophane-β
Formula: Ca(UO2)2(SiO3OH)2 · 5H2O
Description: Intimately mixed with uranophane in Pleistocene gravels.
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 408; Austin, S.R. (1964), Mineralogy of the Cameron area, Coconino Co., AZ, US Atomic Energy Comm. RME 99, Tech. Inf. Serv., Oak Ridge, TN: 99.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Schoepite4.GA.05(UO2)8O2(OH)12 · 12H2O
Tyuyamunite4.HB.25Ca(UO2)2(VO4)2 · 5-8H2O
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Alunite7.BC.10KAl3(SO4)2(OH)6
Gypsum7.CD.40CaSO4 · 2H2O
Group 8 - Phosphates, Arsenates and Vanadates
Meta-autunite8.EB.10Ca(UO2)2(PO4)2 · 6-8H2O
Group 9 - Silicates
Uranophane9.AK.15Ca(UO2)2(SiO3OH)2 · 5H2O
Uranophane-β9.AK.15Ca(UO2)2(SiO3OH)2 · 5H2O

List of minerals arranged by Dana 8th Edition classification

Group 5 - OXIDES CONTAINING URANIUM OR THORIUM
AXO3·xH2O
Schoepite5.2.1.3(UO2)8O2(OH)12 · 12H2O
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Gypsum29.6.3.1CaSO4 · 2H2O
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Alunite30.2.4.1KAl3(SO4)2(OH)6
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
AB2(XO4)2·xH2O, containing (UO2)2+
Meta-autunite40.2a.1.2Ca(UO2)2(PO4)2 · 6-8H2O
Tyuyamunite40.2a.26.1Ca(UO2)2(VO4)2 · 5-8H2O
Group 53 - NESOSILICATES Insular SiO4 Groups and Other Anions or Complex Cations
Insular SiO4 Groups and Other Anions of Complex Cations with (UO2)
Uranophane53.3.1.2Ca(UO2)2(SiO3OH)2 · 5H2O
Uranophane-β53.3.1.9Ca(UO2)2(SiO3OH)2 · 5H2O

List of minerals for each chemical element

HHydrogen
H AluniteKAl3(SO4)2(OH)6
H GypsumCaSO4 · 2H2O
H Meta-autuniteCa(UO2)2(PO4)2 · 6-8H2O
H Schoepite(UO2)8O2(OH)12 · 12H2O
H TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
H UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
H Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2O
OOxygen
O AluniteKAl3(SO4)2(OH)6
O GypsumCaSO4 · 2H2O
O Meta-autuniteCa(UO2)2(PO4)2 · 6-8H2O
O Schoepite(UO2)8O2(OH)12 · 12H2O
O TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
O UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
O Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2O
AlAluminium
Al AluniteKAl3(SO4)2(OH)6
SiSilicon
Si UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Si Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2O
PPhosphorus
P Meta-autuniteCa(UO2)2(PO4)2 · 6-8H2O
SSulfur
S AluniteKAl3(SO4)2(OH)6
S GypsumCaSO4 · 2H2O
KPotassium
K AluniteKAl3(SO4)2(OH)6
CaCalcium
Ca GypsumCaSO4 · 2H2O
Ca Meta-autuniteCa(UO2)2(PO4)2 · 6-8H2O
Ca TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
Ca UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Ca Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2O
VVanadium
V TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
UUranium
U Meta-autuniteCa(UO2)2(PO4)2 · 6-8H2O
U Schoepite(UO2)8O2(OH)12 · 12H2O
U TyuyamuniteCa(UO2)2(VO4)2 · 5-8H2O
U UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
U Uranophane-βCa(UO2)2(SiO3OH)2 · 5H2O

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
U.S. Atomic Energy Commission (1959), RME-14.
Austin, S.R (1957), Recent uranium redistribution in the Cameron, Arizona deposits, in Advances in nuclear engineering: New York, Pergamon Press, volume 2, p. 332-338.
Austin, S.R. (1964), Mineralogy of the Cameron area, Coconino County, Arizona, US Atomic Energy Commission RME 99, Technical Information Service, Oak Ridge, Tennessee: 36-37, 99.
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.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 106, 294, 364, 405, 408.
USGS Hupatki NE, Arizona, quadrangle 7½ minute topo map.
Flagstaff NTMS.


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