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Little John & Ruth Mine (Little John Mine; Ruth Mine), Sun Valley, Petrified Forest Mining District, Navajo Co., Arizona, USAi
Regional Level Types
Little John & Ruth Mine (Little John Mine; Ruth Mine)Mine
Sun ValleyTown
Petrified Forest Mining District- not defined -
Navajo Co.County
ArizonaState
USACountry

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Latitude & Longitude (WGS84):
34° 54' 25'' North , 109° 52' 42'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Sun Valley316 (2011)18.3km
Woodruff191 (2011)20.5km
Holbrook5,019 (2017)25.5km
Joseph City1,386 (2011)41.9km
Snowflake5,666 (2017)47.4km


A former U-V occurrence/mine located in the N½ sec. 2, T17N, R23E, G&SRM, 18.3 km (11.4 miles) ESE of Sun Valley and 9.3 km (5.8 miles) SSW of Adamana (Apache County), on Bureau of Land Management administered land. Merrill Young was original owner who sold to Bayshore Co. of Canada and called the mine the Little John. The USGS MRDS database stated accuracy for this locality is 100 meters.

Local rocks include rocks of the Chinle formation.

Workings include surface openings comprised of rim stripping and a 10 foot caved adit.

Mineralization is an U channel deposit hosted in gray, medium- to coarse-grained sandstone and bentonitic mudstone in the Petrified Forest Member of the Chinle Formation. Ore includes uraninite, coffinite, zeunerite, schroeckingerite, and torbernite with abundant petrified logs and carbonaceous trash.

Production was 11 tons of ore @0.10% U308; 0.16% V205 (1953-1954). Production was combined with the Ruth Mine.

Radioactivity is 1.5 mr/hour.

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


5 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:

Coffinite
Formula: U(SiO4) · nH2O
Reference: Scarborough, Robert B. (1981), Radioactive occurrences and uranium production in Arizona – Final Report, Arizona Bureau of Geology and Mineral Technology Report for U.S. Department of Energy (Atomic Energy Commission), GJBX-143 (81) (March 1981). RME-2071: 221.
'Petrified Wood'
Reference: Scarborough, Robert B. (1981), Radioactive occurrences and uranium production in Arizona – Final Report, Arizona Bureau of Geology and Mineral Technology Report for U.S. Department of Energy (Atomic Energy Commission), GJBX-143 (81) (March 1981). RME-2071: 221.
Schröckingerite
Formula: NaCa3(UO2)(CO3)3(SO4)F · 10H2O
Reference: Scarborough, Robert B. (1981), Radioactive occurrences and uranium production in Arizona – Final Report, Arizona Bureau of Geology and Mineral Technology Report for U.S. Department of Energy (Atomic Energy Commission), GJBX-143 (81) (March 1981). RME-2071: 221.
Torbernite
Formula: Cu(UO2)2(PO4)2 · 12H2O
Reference: Scarborough, Robert B. (1981), Radioactive occurrences and uranium production in Arizona – Final Report, Arizona Bureau of Geology and Mineral Technology Report for U.S. Department of Energy (Atomic Energy Commission), GJBX-143 (81) (March 1981). RME-2071: 221.
Uraninite
Formula: UO2
Reference: Scarborough, Robert B. (1981), Radioactive occurrences and uranium production in Arizona – Final Report, Arizona Bureau of Geology and Mineral Technology Report for U.S. Department of Energy (Atomic Energy Commission), GJBX-143 (81) (March 1981). RME-2071: 221.
Zeunerite
Formula: Cu(UO2)2(AsO4)2 · 12H2O
Reference: Scarborough, Robert B. (1981), Radioactive occurrences and uranium production in Arizona – Final Report, Arizona Bureau of Geology and Mineral Technology Report for U.S. Department of Energy (Atomic Energy Commission), GJBX-143 (81) (March 1981). RME-2071: 221.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Uraninite4.DL.05UO2
Group 5 - Nitrates and Carbonates
Schröckingerite5.EG.05NaCa3(UO2)(CO3)3(SO4)F · 10H2O
Group 8 - Phosphates, Arsenates and Vanadates
Torbernite8.EB.05Cu(UO2)2(PO4)2 · 12H2O
Zeunerite8.EB.05Cu(UO2)2(AsO4)2 · 12H2O
Group 9 - Silicates
Coffinite9.AD.30U(SiO4) · nH2O
Unclassified Minerals, Rocks, etc.
'Petrified Wood'-

List of minerals arranged by Dana 8th Edition classification

Group 5 - OXIDES CONTAINING URANIUM OR THORIUM
AXO2·xH2O
Uraninite5.1.1.1UO2
Group 17 - COMPOUND CARBONATES
Miscellaneous
Schröckingerite17.1.5.1NaCa3(UO2)(CO3)3(SO4)F · 10H2O
Group 40 - HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
AB2(XO4)2·xH2O, containing (UO2)2+
Torbernite40.2a.13.1Cu(UO2)2(PO4)2 · 12H2O
Zeunerite40.2a.14.1Cu(UO2)2(AsO4)2 · 12H2O
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in >[6] coordination
Coffinite51.5.2.4U(SiO4) · nH2O
Unclassified Minerals, Mixtures, etc.
'Petrified Wood'-

List of minerals for each chemical element

HHydrogen
H CoffiniteU(SiO4) · nH2O
H ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
H SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
H TorberniteCu(UO2)2(PO4)2 · 12H2O
CCarbon
C SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
OOxygen
O UraniniteUO2
O CoffiniteU(SiO4) · nH2O
O ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
O SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
O TorberniteCu(UO2)2(PO4)2 · 12H2O
FFluorine
F SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
NaSodium
Na SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
SiSilicon
Si CoffiniteU(SiO4) · nH2O
PPhosphorus
P TorberniteCu(UO2)2(PO4)2 · 12H2O
SSulfur
S SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
CaCalcium
Ca SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
CuCopper
Cu ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
Cu TorberniteCu(UO2)2(PO4)2 · 12H2O
AsArsenic
As ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
UUranium
U UraniniteUO2
U CoffiniteU(SiO4) · nH2O
U ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
U SchröckingeriteNaCa3(UO2)(CO3)3(SO4)F · 10H2O
U TorberniteCu(UO2)2(PO4)2 · 12H2O

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Early Jurassic - Late Triassic
174.1 - 237 Ma



ID: 3185972
Mesozoic sedimentary rocks

Age: Mesozoic (174.1 - 237 Ma)

Lithology: Sandstone-conglomerate

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Norian - Carnian
208.5 - 237 Ma



ID: 2719040
Chinle Formation

Age: Late Triassic (208.5 - 237 Ma)

Stratigraphic Name: Chinle Formation

Description: Colorful mudstone, such as in the Painted Desert, and less abundant lenses of sandstone and conglomerate, deposited by a large river system. This unit typically is eroded into badlands topography and contains clays that are prone to shrinking and swelling. (210-230 Ma)

Comments: Original map source: Arizona Geological Survey, DI-8 Geologic Map of Arizona, Digital Spatial data for the Geologic Map of Arizona, v. 3.0, edited by S.M. Richard and S.M. Kneale, 2002, 10 p., 2 DOS HD disks. Arc/INFO export file (.e00) format, scale 1:1,000,000.

Lithology: Major:{mudstone}, Minor:{sandstone,conglomerate}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Peirce, H.W., S.B. Keith and J. C. Wilt (1970), Coal, oil, natural gas, helium, and uranium in Arizona, Arizona Bureau of Mines Bulletin 182: 231.
Scarborough, Robert B. (1981), Radioactive occurrences and uranium production in Arizona – Final Report, Arizona Bureau of Geology and Mineral Technology Report for U.S. Department of Energy (Atomic Energy Commission), GJBX-143 (81) (March 1981). RME-2071: 221.
U.S. Bureau of Mines (1995), Minerals Availability System/Mineral Industry Location System (MAS/MILS), U.S. Bureau of Mines, file ID #0040170156.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, deposit ID #10259231.
USGS Crib file # W016165.
Arizona Department of Mineral Resources card files.
USGS 15 minute Petrified Forest quadrangle topo map.


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