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St. Patrick's group (St. Patrick claim; Alger Creek claims), Forest Falls (Fallsvale; Fallsville; Forest Home), San Bernardino Mountains, San Bernardino Co., California, USAi
Regional Level Types
St. Patrick's group (St. Patrick claim; Alger Creek claims)- not defined -
Forest Falls (Fallsvale; Fallsville; Forest Home)- not defined -
San Bernardino MountainsMountain Range
San Bernardino Co.County
CaliforniaState
USACountry

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Key
Latitude & Longitude (WGS84):
34° 5' 30'' North , 116° 54' 23'' West
Latitude & Longitude (decimal):
Nearest Settlements:
PlacePopulationDistance
Oak Glen638 (2011)6.0km
Yucaipa53,328 (2017)14.1km
Cherry Valley6,362 (2011)14.8km
Big Bear Lake5,213 (2017)16.9km
Calimesa8,542 (2017)17.3km


A former U-Th-REE occurrence/group of claims/mine located in secs. 7 & 8, T1S, R1E, SBM, approximately 1.3 km (0.8 mile) ENE of Forest Falls, along Alger Creek, on National Forest land (located claim). MRDS database stated accuracy for this location is 1,000 meters.

Local rocks include Precambrian igneous and metamorphic rock complex.

Workings include unspecified surface openings.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


3 valid minerals.

Detailed Mineral List:

'Allanite Group'
Formula: {A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
Reference: Hewett, Donnel Foster & Jerome Stone (1957), Uranothorite near Forest Home, San Bernardino County, California: American Mineralogist: 42: 104-107; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 366.
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Reference: Hewett, Donnel Foster & Jerome Stone (1957), Uranothorite near Forest Home, San Bernardino County, California: American Mineralogist: 42: 104-107; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 366.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Hewett, Donnel Foster & Jerome Stone (1957), Uranothorite near Forest Home, San Bernardino County, California: American Mineralogist: 42: 104-107; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 366.
Thorite
Formula: Th(SiO4)
Colour: Dark brown
Description: Occurs as grains and subhedral crystals in magnetite, etc.
Reference: Hewett, Donnel Foster & Jerome Stone (1957), Uranothorite near Forest Home, San Bernardino County, California: American Mineralogist: 42: 104-107; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 366.
Thorite var: Uranothorite
Formula: (Th,U)SiO4
Colour: Dark brown
Description: Occurs as grains and subhedral crystals in magnetite, etc.
Reference: Hewett, Donnel Foster & Jerome Stone (1957), Uranothorite near Forest Home, San Bernardino County, California: American Mineralogist: 42: 104-107; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 366.
Uraninite ?
Formula: UO2
Reference: Walker, G.W., Lovering, T.G., and Stephens, H.G. (1956), Radioactive Deposits in California: Special Report 49 of the Californnia Division of Mines & Geology: 23; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 378.

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Magnetite4.BB.05Fe2+Fe3+2O4
Uraninite ?4.DL.05UO2
Group 9 - Silicates
Thorite9.AD.30Th(SiO4)
var: Uranothorite9.AD.30(Th,U)SiO4
Unclassified Minerals, Rocks, etc.
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2

List of minerals arranged by Dana 8th Edition classification

Group 5 - OXIDES CONTAINING URANIUM OR THORIUM
AXO2·xH2O
Uraninite ?5.1.1.1UO2
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in >[6] coordination
Thorite51.5.2.3Th(SiO4)
Unclassified Minerals, Mixtures, etc.
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Thorite
var: Uranothorite
-(Th,U)SiO4

List of minerals for each chemical element

HHydrogen
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
H Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
OOxygen
O Thorite (var: Uranothorite)(Th,U)SiO4
O MagnetiteFe2+Fe23+O4
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
O Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
O ThoriteTh(SiO4)
O UraniniteUO2
FFluorine
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
MgMagnesium
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
AlAluminium
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
SiSilicon
Si Thorite (var: Uranothorite)(Th,U)SiO4
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Si Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
Si ThoriteTh(SiO4)
KPotassium
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
FeIron
Fe MagnetiteFe2+Fe23+O4
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
ThThorium
Th Thorite (var: Uranothorite)(Th,U)SiO4
Th ThoriteTh(SiO4)
UUranium
U Thorite (var: Uranothorite)(Th,U)SiO4
U UraniniteUO2

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Walker, G.W., Lovering, T.G., and Stephens, H.G. (1956), Radioactive Deposits in California: Special Report 49 of the Californnia Division of Mines & Geology: 23.
Hewett, Donnel Foster & Jerome Stone (1957), Uranothorite near Forest Home, San Bernardino County, California: American Mineralogist: 42: 104-107.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 366, 378.
USGS map MF-1161-C (1983): site 2.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10188886.
U.S. Bureau of Mines (1995), Minerals Availability System/Mineral Industry Location System (MAS/MILS): file #0060711426.

Other Databases

USGS MRDS Record:10188886

Other Regions, Features and Areas containing this locality

North America
Pacific PlateTectonic Plate
USA

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