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Lead Mountain Mine (Main Barite Mine), Lead Mountain [2], Barstow, Barstow District, San Bernardino Co., California, USAi
Regional Level Types
Lead Mountain Mine (Main Barite Mine)Mine
Lead Mountain [2]Mountain
Barstow- not defined -
Barstow DistrictMining District
San Bernardino Co.County
CaliforniaState
USACountry

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Latitude & Longitude (WGS84): 34° 55' 12'' North , 116° 56' 9'' West
Latitude & Longitude (decimal): 34.92000,-116.93611
GeoHash:G#: 9qhyehcxx
USGS MRDS Record:10077227
Locality type:Mine
Köppen climate type:BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Barstow23,692 (2017)8.3km
Barstow Heights24,202 (2006)12.3km
Lenwood3,543 (2011)16.0km
Silver Lakes5,623 (2017)41.7km
Fort Irwin8,845 (2011)44.4km


A former baryte-Pb-Ag-Au-Zn occurrence/mine located in sec. 36, T10N, R1W (SBM), 0.1 km (0.1 mile) SSW of Lead Mountain [2] (coordinates of record), about 9 km ENE of Barstow and SW of Calico (5 miles NW of Yermo), on private (patented) land. The property is comprised of 640 acres. MRDS database stated accuracy for this location is 10 meters. Worked for baryte during the period 1931-1933 with no Pb-Ag production.

Mineralization is hosted in andesite. The ore body is irregular in form, strikes NW, dips 40NE at a Width of 30.48 meters and a length of 396.24 meters. Controls for ore emplacement included a fissure. The vein material is a coarsely crystallized baryte with quartz containing brown iron oxides, Pb carbonate, ochre, manganese oxide and Ag chlorides. Country rock is tuff, limestone and andesitic porphyry. Local rocks include Miocene nonmarine rocks.

Workings include underground openings comprised of a seriers of open cuts and tunnels for a distance of 500 feet. Present workings are confined to a tunnel driven N for 75 feet, crosscutting the ore fissure. Drifts and stoping were excavated above this level. A shaft has been sunk on an incline of 33 degrees for 210 feet, near the portal of the crosscut tunnel. A stope is 25 feet wide by 50 feet long and 30 feet high. At the floor of the stope, there is a vertical winze at 245 feet deep that connects shaft to a tunnel 1,300 feet in length driven from the N.

Mineralization is a baryte vein deposit in metamorphic rocks of Pre-Cretaceous age and sedimentary and volcanic rocks of Tertiary age. The veins follow faults.

Analytical data results: Pb 15-30%, Au $0.40-2.00 (period values)/ton, Ag 6-30 ounces/ton.

Regions containing this locality

North America PlateTectonic Plate

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


18 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

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Sulphur ?1.CC.05S8
Group 2 - Sulphides and Sulfosalts
Galena2.CD.10PbS
Group 3 - Halides
Chlorargyrite3.AA.15AgCl
Murdochite ?3.DB.45PbCu6O8-x(Cl,Br)2x where x<=0.5
Group 4 - Oxides and Hydroxides
Coronadite4.DK.05aPb(Mn4+6Mn3+2)O16
Cryptomelane4.DK.05aK(Mn4+7Mn3+)O16
Hetaerolite4.BB.10ZnMn2O4
Plattnerite4.DB.05PbO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Cerussite5.AB.15PbCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Rosasite5.BA.10(Cu,Zn)2(CO3)(OH)2
Smithsonite5.AB.05ZnCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Alunite7.BC.10KAl3(SO4)2(OH)6
Baryte7.AD.35BaSO4
Fibroferrite7.DC.15Fe3+(SO4)(OH) · 5H2O
Group 8 - Phosphates, Arsenates and Vanadates
Bayldonite8.BH.45PbCu3(AsO4)2(OH)2
Group 9 - Silicates
Hemimorphite9.BD.10Zn4Si2O7(OH)2 · H2O

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Sulphur ?1.3.5.1S8
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Group 4 - SIMPLE OXIDES
AX2
Plattnerite4.4.1.6PbO2
Miscellaneous
Murdochite ?4.6.5.1PbCu6O8-x(Cl,Br)2x where x<=0.5
Group 7 - MULTIPLE OXIDES
AB2X4
Hetaerolite7.2.7.2ZnMn2O4
AB8X16
Coronadite7.9.1.4Pb(Mn4+6Mn3+2)O16
Cryptomelane7.9.1.2K(Mn4+7Mn3+)O16
Group 9 - NORMAL HALIDES
AX
Chlorargyrite9.1.4.1AgCl
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Cerussite14.1.3.4PbCO3
Smithsonite14.1.1.6ZnCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite16a.3.1.1Cu2(CO3)(OH)2
Rosasite16a.3.1.2(Cu,Zn)2(CO3)(OH)2
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Alunite30.2.4.1KAl3(SO4)2(OH)6
Group 31 - HYDRATED SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)(XO4)Zq·xH2O
Fibroferrite31.9.12.1Fe3+(SO4)(OH) · 5H2O
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Bayldonite41.5.14.1PbCu3(AsO4)2(OH)2
Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with cations in [4] coordination
Hemimorphite56.1.2.1Zn4Si2O7(OH)2 · H2O

List of minerals for each chemical element

HHydrogen
H HemimorphiteZn4Si2O7(OH)2 · H2O
H AluniteKAl3(SO4)2(OH)6
H BayldonitePbCu3(AsO4)2(OH)2
H FibroferriteFe3+(SO4)(OH) · 5H2O
H MalachiteCu2(CO3)(OH)2
H Rosasite(Cu,Zn)2(CO3)(OH)2
CCarbon
C CalciteCaCO3
C MalachiteCu2(CO3)(OH)2
C Rosasite(Cu,Zn)2(CO3)(OH)2
C CerussitePbCO3
C SmithsoniteZnCO3
OOxygen
O BaryteBaSO4
O HemimorphiteZn4Si2O7(OH)2 · H2O
O AluniteKAl3(SO4)2(OH)6
O BayldonitePbCu3(AsO4)2(OH)2
O CalciteCaCO3
O FibroferriteFe3+(SO4)(OH) · 5H2O
O MalachiteCu2(CO3)(OH)2
O PlattneritePbO2
O Rosasite(Cu,Zn)2(CO3)(OH)2
O CerussitePbCO3
O CryptomelaneK(Mn74+Mn3+)O16
O CoronaditePb(Mn64+Mn23+)O16
O HetaeroliteZnMn2O4
O SmithsoniteZnCO3
O MurdochitePbCu6O8-x(Cl,Br)2x where x<=0.5
AlAluminium
Al AluniteKAl3(SO4)2(OH)6
SiSilicon
Si HemimorphiteZn4Si2O7(OH)2 · H2O
SSulfur
S BaryteBaSO4
S AluniteKAl3(SO4)2(OH)6
S FibroferriteFe3+(SO4)(OH) · 5H2O
S GalenaPbS
S SulphurS8
ClChlorine
Cl ChlorargyriteAgCl
Cl MurdochitePbCu6O8-x(Cl,Br)2x where x<=0.5
KPotassium
K AluniteKAl3(SO4)2(OH)6
K CryptomelaneK(Mn74+Mn3+)O16
CaCalcium
Ca CalciteCaCO3
MnManganese
Mn CryptomelaneK(Mn74+Mn3+)O16
Mn CoronaditePb(Mn64+Mn23+)O16
Mn HetaeroliteZnMn2O4
FeIron
Fe FibroferriteFe3+(SO4)(OH) · 5H2O
CuCopper
Cu BayldonitePbCu3(AsO4)2(OH)2
Cu MalachiteCu2(CO3)(OH)2
Cu Rosasite(Cu,Zn)2(CO3)(OH)2
Cu MurdochitePbCu6O8-x(Cl,Br)2x where x<=0.5
ZnZinc
Zn HemimorphiteZn4Si2O7(OH)2 · H2O
Zn Rosasite(Cu,Zn)2(CO3)(OH)2
Zn HetaeroliteZnMn2O4
Zn SmithsoniteZnCO3
AsArsenic
As BayldonitePbCu3(AsO4)2(OH)2
BrBromine
Br MurdochitePbCu6O8-x(Cl,Br)2x where x<=0.5
AgSilver
Ag ChlorargyriteAgCl
BaBarium
Ba BaryteBaSO4
PbLead
Pb BayldonitePbCu3(AsO4)2(OH)2
Pb PlattneritePbO2
Pb CerussitePbCO3
Pb GalenaPbS
Pb CoronaditePb(Mn64+Mn23+)O16
Pb MurdochitePbCu6O8-x(Cl,Br)2x where x<=0.5

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

Quaternary - Miocene
0 - 23.03 Ma



ID: 3185380
Cenozoic sedimentary rocks

Age: Cenozoic (0 - 23.03 Ma)

Lithology: Sedimentary rocks

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]

Pleistocene - Oligocene
0.0117 - 33.9 Ma



ID: 2904462
Miocene nonmarine rocks

Age: Cenozoic (0.0117 - 33.9 Ma)

Stratigraphic Name: Barstow Formation; Bena Gravels; Bissell Formation; Bopesta Formation; Caliente Formation; Clews Fanglomerate; Coachella Fanglomerate; Fiss Fanglomerate; Mint Canyon Formation; Oso Canyon Formation; Pickhandle Formation; Punchbowl Formation; San Pablo Group; Santa Barbara Formation; Split Mountain Formation; Tick Canyon Formation; Tropico Group; Valley Springs Formation

Description: Sandstone, shale, conglomerate, and fanglomerate; in part Pliocene and Oligocene.

Comments: Original map source: Saucedo, G.J., Bedford, D.R., Raines, G.L., Miller, R.J., and Wentworth, C.M., 2000, GIS Data for the Geologic Map of California, California Department of Conservation, Division of Mines and Geology, CD-ROM 2000-07, scale 1:750,000.

Lithology: Major:{sandstone,conglomerate}, Minor:{siltstone,mudstone}, Incidental:{sedimentary breccia, limestone, dolostone, felsic volcanic, basalt, chert}

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)
Tucker, W. Burling (1921), Los Angeles field division: California Mining Bureau Report 17: 334.
Tucker, W. Burling (1924a), San Bernardino County: California Mining Bureau. Report 20: 95, 199-200.
Tucker, W. Burling & Reid J. Sampson (1930), Los Angeles field division: California Journal of Mines and Geology, California Mining Bureau. (Report 26): 26: 298.
Tucker, W. Burling & Reid J. Sampson (1931), Los Angeles Field Division; 27th Report of the State Mineralogist; San Bernardino County: California Journal of Mines and Geology, California Mining Bureau. (Report 27): 27: 351-352, 372.
Erwin, H.D. & D.L. Gardner (1940), Notes on the geology of a portion of the Calico Mountains, San Bernardino County, California: California Division Mines Report 36: 245, 249-250.
Murdoch, Joseph & Robert W. Webb (1942), Notes on some minerals from southern California, III: American Mineralogist: 27: 327.
Tucker, W. Burling & Reid J. Sampson (1943b), Mineral resources of San Bernardino County: California Division Mines Report 39: 484.
Wright, L.A., et al (1953), Mines and mineral deposits of San Bernardino County, California: California Journal of Mines & Geology: 49(1&2): 79 table - tabulated list No. 261, p. 79; No. 395, p. 134, 155.
Durrell, C. (1954), Barite deposits near Barstow, San Bernardino County, California: California Division of Mines Special Report 39: 7-8.
Goodwin, Joseph Grant (1957) Lead and zinc in California. California Journal of Mines and Geology, Division of Mines (Report 53): 53(3&4): 646-647.
Brobst, D.A. (1958), Barite Resources of the United States, USGS Bull. 1072-B: 108 (Table 10).
Gamble, J., and Danehy, E. A. (1959), Geology and Mineral Resources of Township 10 North, Range 1 and 2 West, San Bernardino County, California, San Francisco, Southern Pacific Land Company (unpublished map) No. X-0102-10, scale 1:24,000. In part after Bowen (1954) and McCulloch (1956).
Oesterling, W.A. and Spurck, W.H. (1964), Minerals for Industry, Summary of Geological Survey 1955 - 1961: Vol III - 242 pp., Southern California, Southern Pacific Company, San Francisco, CA 94105: p. 58, No. 56.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 98, 126, 191, 218.
Pemberton, H. Earl (1983), Minerals of California: 195, 233, 514.
Buchanan, L. J. (1987), Precious Metal Deposits in Detachment Terrains, Southeastern California and Western Arizona, in: Johnson, J.L., editor, Bulk Mineable Precious Metal Deposits of the Western United States - Guidebook for Field Trips: Geological Society of Nevada 1987 Symposium: 7.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10077227 & 10140678.
U.S. Bureau of Mines (1995), Minerals Availability System/Mineral Industry Location System (MAS/MILS): file #0060710261.
Housley, Robert, private communication to Michael B. Moore.


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