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Pennsylvania Uranium Mining Company Shaft, Shanesville, Earl Township, Berks Co., Pennsylvania, USA

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Latitude & Longitude (WGS84): 40° 22' 16'' North , 75° 42' 13'' West
Latitude & Longitude (decimal): 40.37111,-75.70361
GeoHash:G#: dr4jtm66f
Locality type:Group of Shafts
Köppen climate type:Cfa : Humid subtropical climate


Mining shaft in precambrian hornblend-plagioclase gneiss. Thorite and it’s alteration product thorogummite associated with hydroxyl-apatite and yttrium rich titanite. Boulders up to 40 cm across containing about 1/3 thorite, and with surface radioactives of 25 mR / hr., are common.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


3 valid minerals.

Detailed Mineral List:

Hydroxylapatite
Formula: Ca5(PO4)3(OH)
Reference: Smith, Robert C., 1976, Mineralogy of Pennsylvania 1966-1976, pgs. 38, 44
Thorite
Formula: Th(SiO4)
Reference: Smith, Robert C., 1976, Mineralogy of Pennsylvania 1966-1976, pgs. 38, 44
'Thorogummite'
Formula: (Th,U)(SiO4)1-x(OH)4x
Reference: Smith, Robert C., 1976, Mineralogy of Pennsylvania 1966-1976, pgs. 38, 44
Titanite
Formula: CaTi(SiO4)O
Reference: Smith, Robert C., 1976, Mineralogy of Pennsylvania 1966-1976, pgs. 38, 44

List of minerals arranged by Strunz 10th Edition classification

Group 8 - Phosphates, Arsenates and Vanadates
'Hydroxylapatite'8.BN.05Ca5(PO4)3(OH)
Group 9 - Silicates
'Thorite'9.AD.30Th(SiO4)
'Titanite'9.AG.15CaTi(SiO4)O
Unclassified Minerals, Rocks, etc.
'Thorogummite'-(Th,U)(SiO4)1-x(OH)4x

List of minerals arranged by Dana 8th Edition classification

Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Hydroxylapatite41.8.1.3Ca5(PO4)3(OH)
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in >[6] coordination
Thorite51.5.2.3Th(SiO4)
'Thorogummite'51.5.2.5(Th,U)(SiO4)1-x(OH)4x
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Titanite52.4.3.1CaTi(SiO4)O

List of minerals for each chemical element

HHydrogen
H HydroxylapatiteCa5(PO4)3(OH)
H Thorogummite(Th,U)(SiO4)1-x(OH)4x
OOxygen
O HydroxylapatiteCa5(PO4)3(OH)
O ThoriteTh(SiO4)
O Thorogummite(Th,U)(SiO4)1-x(OH)4x
O TitaniteCaTi(SiO4)O
SiSilicon
Si ThoriteTh(SiO4)
Si Thorogummite(Th,U)(SiO4)1-x(OH)4x
Si TitaniteCaTi(SiO4)O
PPhosphorus
P HydroxylapatiteCa5(PO4)3(OH)
CaCalcium
Ca HydroxylapatiteCa5(PO4)3(OH)
Ca TitaniteCaTi(SiO4)O
TiTitanium
Ti TitaniteCaTi(SiO4)O
ThThorium
Th ThoriteTh(SiO4)
Th Thorogummite(Th,U)(SiO4)1-x(OH)4x
UUranium
U Thorogummite(Th,U)(SiO4)1-x(OH)4x

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

Precambrian
541 - 4000 Ma



ID: 2758834
Felsic to mafic gneiss

Age: Precambrian (541 - 4000 Ma)

Description: Light, medium grained; predominantly quartz and feldspar of igneous origin.

Comments: Digital map differences from 1980 printed map: name changed from (Granitic gneiss). Original map source: Pennsylvania Bureau of Topographic and Geologic Survey, Department of Conservation and Natural Resources, Miles, C.E., and Whitfield, T.G., compilers, 2001, Bedrock Geology of Pennsylvania, edition: 1.0, digital map, scale 1:250,000.

Lithology: Major:{gneiss}

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]

Mesoproterozoic
1000 - 1600 Ma



ID: 3188605
Mesoproterozoic crystalline metamorphic rocks

Age: Mesoproterozoic (1000 - 1600 Ma)

Lithology: Paragneiss; paragneiss

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]

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)
Smith, Robert C., 1976, Mineralogy of Pennsylvania 1966-1976, pgs. 38, 44
McCauley, John F., 1961, Uranium in Pennsylvania: Pennsylvania Geological Survey, Bulletin M43, 71 p.
Buckwalter, T. V., 1959, Geology of the Precambrian rocks and Hardyston formation of the Boyertown quadrangle, PA Geol. Survey, 4th ser., Atlas 197


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