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Ramco No. 20 Mine (Ramco No. 20 claim), Cameron, Cameron Mining District, Coconino Co., Arizona, USAi
Regional Level Types
Ramco No. 20 Mine (Ramco No. 20 claim)Mine
CameronTown
Cameron Mining DistrictMining District
Coconino Co.County
ArizonaState
USACountry

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Key
Latitude & Longitude (WGS84):
35° 44' 8'' North , 111° 17' 39'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Cameron885 (2016)18.9km
Moenkopi964 (2011)42.2km
Tuba City8,611 (2011)44.7km


A former U-Mo occurrence/mine located in the NW¼SE¼ sec. 11, T27N, R10E, G&SRM, SSE of Cameron and E of Gray Mountain (town), in the USGS Wupatki NE quadrangle, 1.4 miles E of the Little Colorado River. The USGS MRDS database stated accuracy form this locality is 100 meters

Mineralization is in lenses and pods hosted in mudstone and sandstone in a paleochannel trending NE. The ore body is 30.48 meters wide and 548.64 meters long. All ore bodies in the area are surrounded by light brown to yellowish-brown alteration halos which cut across the normal purple and grey beds of host rock types. Some Ore controls include possible fracturing at a slight angle to the paleochannel. The ore fills intraformational channels and scours within the upper 30 feet of the Shinarump Member and the lower 60 feet of the Petrified Forest Member of the Triassic Chinle Formation. The ore tends to occur in depressions along channels, and changes in channel direction, favoring more carbonaceous layers. Associated rocks include unconsolidated Pleistocene-Late Triassic clay and mud, volcanic ash and basalt. Montmorillonite clay was derived from volcanic ash. Mineralization occurs in scour and fill sediments of a ENE-trending channel in the Petrified Forest Member. Uraninite replaces cell walls and pyrite replaces cell centers in petrified logs. Gypsum coats secondary uranium minerals in fractures. Boltwoodite and cobalt minerals were identified. Same ore body as Ramco #22 and Ryan #2.Local rocks include rocks of the Chinle Formation.

Workings include surface openings comprised of an open pit 70 feet deep, with over 800 drill holes.

Production was 22,642 tons @ 0.22% U3O8; 0.04% V2O5 (1956-1960).

Regions containing this locality

North America PlateTectonic Plate
Colorado Plateau, USAPlateau
Navajo Nation Indian Reservation, USAReservation
Hopi-Navajo Indian Reservations, Colorado Plateau, Apache; Navajo and San Juan Cos., Arizona & Utah, USA

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


12 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:

Boltwoodite
Formula: (K,Na)(UO2)(SiO3OH) · 1.5H2O
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 141; 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.
Calcite
Formula: CaCO3
Reference: Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182; 118, 214-234; Hinkley, D.N. (1955), Reconnaissance of the Cameron area, Coconino Co., AZ, US Atomic Energy Comm. USAEC-RME-81; Bollin & Kerr (1958), Guidebook for New Mexico Geol.Soc., 9th. Field Conference F.P.
Carnotite
Formula: K2(UO2)2(VO4)2 · 3H2O
Reference: Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182; 118, 214-234; Hinkley, D.N. (1955), Reconnaissance of the Cameron area, Coconino Co., AZ, US Atomic Energy Comm. USAEC-RME-81; Bollin & Kerr (1958), Guidebook for New Mexico Geol.Soc., 9th. Field Conference F.P.
Gypsum
Formula: CaSO4 · 2H2O
Reference: Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182; 118, 214-234; Hinkley, D.N. (1955), Reconnaissance of the Cameron area, Coconino Co., AZ, US Atomic Energy Comm. USAEC-RME-81; Bollin & Kerr (1958), Guidebook for New Mexico Geol.Soc., 9th. Field Conference F.P.
Jarosite
Formula: KFe3+ 3(SO4)2(OH)6
Reference: Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182; 118, 214-234; Hinkley, D.N. (1955), Reconnaissance of the Cameron area, Coconino Co., AZ, US Atomic Energy Comm. USAEC-RME-81; Bollin & Kerr (1958), Guidebook for New Mexico Geol.Soc., 9th. Field Conference F.P.
Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182; 118, 214-234; Hinkley, D.N. (1955), Reconnaissance of the Cameron area, Coconino Co., AZ, US Atomic Energy Comm. USAEC-RME-81; Bollin & Kerr (1958), Guidebook for New Mexico Geol.Soc., 9th. Field Conference F.P.
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182; 118, 214-234; Hinkley, D.N. (1955), Reconnaissance of the Cameron area, Coconino Co., AZ, US Atomic Energy Comm. USAEC-RME-81; Bollin & Kerr (1958), Guidebook for New Mexico Geol.Soc., 9th. Field Conference F.P.
Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Reference: Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182; 118, 214-234; Hinkley, D.N. (1955), Reconnaissance of the Cameron area, Coconino Co., AZ, US Atomic Energy Comm. USAEC-RME-81; Bollin & Kerr (1958), Guidebook for New Mexico Geol.Soc., 9th. Field Conference F.P.
Pyrite
Formula: FeS2
Reference: 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: 158.
Quartz
Formula: SiO2
Reference: Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182; 118, 214-234; Hinkley, D.N. (1955), Reconnaissance of the Cameron area, Coconino Co., AZ, US Atomic Energy Comm. USAEC-RME-81; Bollin & Kerr (1958), Guidebook for New Mexico Geol.Soc., 9th. Field Conference F.P.
Uraninite
Formula: UO2
Reference: Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182; 118, 214-234; Hinkley, D.N. (1955), Reconnaissance of the Cameron area, Coconino Co., AZ, US Atomic Energy Comm. USAEC-RME-81; Bollin & Kerr (1958), Guidebook for New Mexico Geol.Soc., 9th. Field Conference F.P.
Uranophane
Formula: Ca(UO2)2(SiO3OH)2 · 5H2O
Reference: Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182; 118, 214-234; Hinkley, D.N. (1955), Reconnaissance of the Cameron area, Coconino Co., AZ, US Atomic Energy Comm. USAEC-RME-81; Bollin & Kerr (1958), Guidebook for New Mexico Geol.Soc., 9th. Field Conference F.P.
Zippeite
Formula: K3(UO2)4(SO4)2O3(OH) · 3H2O
Reference: Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, AZ Bur. Mines Bull. 182; 118, 214-234; Hinkley, D.N. (1955), Reconnaissance of the Cameron area, Coconino Co., AZ, US Atomic Energy Comm. USAEC-RME-81; Bollin & Kerr (1958), Guidebook for New Mexico Geol.Soc., 9th. Field Conference F.P.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Carnotite4.HB.05K2(UO2)2(VO4)2 · 3H2O
Quartz4.DA.05SiO2
Uraninite4.DL.05UO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Gypsum7.CD.40CaSO4 · 2H2O
Jarosite7.BC.10KFe3+ 3(SO4)2(OH)6
Zippeite7.EC.05K3(UO2)4(SO4)2O3(OH) · 3H2O
Group 9 - Silicates
Boltwoodite9.AK.15(K,Na)(UO2)(SiO3OH) · 1.5H2O
Kaolinite9.ED.05Al2(Si2O5)(OH)4
Montmorillonite9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Uranophane9.AK.15Ca(UO2)2(SiO3OH)2 · 5H2O
Unclassified Minerals, Rocks, etc.
'Limonite'-(Fe,O,OH,H2O)

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 5 - OXIDES CONTAINING URANIUM OR THORIUM
AXO2·xH2O
Uraninite5.1.1.1UO2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
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
Jarosite30.2.5.1KFe3+ 3(SO4)2(OH)6
Group 31 - HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
Miscellaneous
Zippeite31.10.4.1K3(UO2)4(SO4)2O3(OH) · 3H2O
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
AB2(XO4)2·xH2O, containing (UO2)2+
Carnotite40.2a.28.1K2(UO2)2(VO4)2 · 3H2O
Group 53 - NESOSILICATES Insular SiO4 Groups and Other Anions or Complex Cations
Insular SiO4 Groups and Other Anions of Complex Cations with (UO2)
Boltwoodite53.3.1.5(K,Na)(UO2)(SiO3OH) · 1.5H2O
Uranophane53.3.1.2Ca(UO2)2(SiO3OH)2 · 5H2O
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 clays
Montmorillonite71.3.1a.2(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
Kaolinite-Al2(Si2O5)(OH)4
'Limonite'-(Fe,O,OH,H2O)

List of minerals for each chemical element

HHydrogen
H Boltwoodite(K,Na)(UO2)(SiO3OH) · 1.5H2O
H CarnotiteK2(UO2)2(VO4)2 · 3H2O
H ZippeiteK3(UO2)4(SO4)2O3(OH) · 3H2O
H UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
H KaoliniteAl2(Si2O5)(OH)4
H Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
H JarositeKFe3+ 3(SO4)2(OH)6
H GypsumCaSO4 · 2H2O
H Limonite(Fe,O,OH,H2O)
CCarbon
C CalciteCaCO3
OOxygen
O Boltwoodite(K,Na)(UO2)(SiO3OH) · 1.5H2O
O UraniniteUO2
O CarnotiteK2(UO2)2(VO4)2 · 3H2O
O ZippeiteK3(UO2)4(SO4)2O3(OH) · 3H2O
O UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
O KaoliniteAl2(Si2O5)(OH)4
O CalciteCaCO3
O Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
O JarositeKFe3+ 3(SO4)2(OH)6
O GypsumCaSO4 · 2H2O
O Limonite(Fe,O,OH,H2O)
O QuartzSiO2
NaSodium
Na Boltwoodite(K,Na)(UO2)(SiO3OH) · 1.5H2O
Na Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
MgMagnesium
Mg Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
AlAluminium
Al KaoliniteAl2(Si2O5)(OH)4
Al Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
SiSilicon
Si Boltwoodite(K,Na)(UO2)(SiO3OH) · 1.5H2O
Si UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Si KaoliniteAl2(Si2O5)(OH)4
Si Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Si QuartzSiO2
SSulfur
S ZippeiteK3(UO2)4(SO4)2O3(OH) · 3H2O
S JarositeKFe3+ 3(SO4)2(OH)6
S GypsumCaSO4 · 2H2O
S PyriteFeS2
KPotassium
K Boltwoodite(K,Na)(UO2)(SiO3OH) · 1.5H2O
K CarnotiteK2(UO2)2(VO4)2 · 3H2O
K ZippeiteK3(UO2)4(SO4)2O3(OH) · 3H2O
K JarositeKFe3+ 3(SO4)2(OH)6
CaCalcium
Ca UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Ca CalciteCaCO3
Ca Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Ca GypsumCaSO4 · 2H2O
VVanadium
V CarnotiteK2(UO2)2(VO4)2 · 3H2O
FeIron
Fe JarositeKFe3+ 3(SO4)2(OH)6
Fe Limonite(Fe,O,OH,H2O)
Fe PyriteFeS2
UUranium
U Boltwoodite(K,Na)(UO2)(SiO3OH) · 1.5H2O
U UraniniteUO2
U CarnotiteK2(UO2)2(VO4)2 · 3H2O
U ZippeiteK3(UO2)4(SO4)2O3(OH) · 3H2O
U UranophaneCa(UO2)2(SiO3OH)2 · 5H2O

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Hinkley, D.N. (1955), Reconnaissance of the Cameron area, Coconino County, Arizona, US Atomic Energy Commission USAEC-RME-81.
Isachsen, Y.W., and Evensen, C.G. (1956) Geology of uranium deposits of the Shinarump and Chinle Formations on the Colorado Plateau, in Page, L.R., and others, Contributions to the geology of uranium and thorium by the U.S. Geological Survey and Atomic Energy Commission for the United Nations International Conference on Peaceful Uses of Atomic Energy, Geneva, Switzerland, 1955: U.S. Geological Survey Professional Paper 300, p. 263-280.
Bollin, E.M., and Kerr, P.F. (1958) Uranium mineralization near Cameron, Arizona, in Anderson, R.Y., and Harshbarger, J.W., eds., Guidebook of the Black Mesa Basin, northeastern Arizona: New Mexico Geological Society 9th Field Conference Guidebook, p. 164-168.
Austin, S.R. (1964), Mineralogy of the Cameron area, Coconino County, Arizona, US Atomic Energy Commission RME 99, Technical Information Service, Oak Ridge, Tennessee: 82-83.
Peirce, H.W., S.B. Keith and J.C.Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, Arizona Bureauof Mines Bulletin 182: 118, 214-234 (Table 1).
Chenoweth, W.L. and Malan, Roger C. (1973), The Uranium deposits of northeastern Arizona, in: Monument Valley (Arizona, Utah and New Mexico), James, H. L.; [ed.], New Mexico Geological Society 24th. Annual Fall Field Conference Guidebook, 232 p. : 139-149.
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: 158.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 141.
U.S. Bureau of Mines (1995), Minerals Availability System/Mineral Industry Location System (MAS/MILS), U.S. Bureau of Mines, file ID #0040050413.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, deposit ID #10027344.
USGS MRDS ID #M002912.
U.S. Atomic Energy Commission (1959), Guidebook to Uranium Depsoits of Western United States, RME-141.
USGS Wupatki NE, Arizona, quadrangle 7½ minute topo map.
Flagstaff NTMS.

USGS MRDS Record:10027344
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