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Lead Mountain Mine (Main Barite Mine), Lead Mountain [2], Barstow, Barstow Mining District, San Bernardino County, California, USAi
Regional Level Types
Lead Mountain Mine (Main Barite Mine)Mine
Lead Mountain [2]Mountain
Barstow- not defined -
Barstow Mining DistrictMining District
San Bernardino CountyCounty
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
GRN:
N24W69
Type:
Mine
KΓΆppen 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
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Mojave Desert Gem & Mineral SocietyBarstow, California8km
Mindat Locality ID:
18931
Long-form identifier:
mindat:1:2:18931:9
GUID (UUID V4):
40b99a6d-b8ff-4f9f-accb-0e125a07fbad


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, Mn 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 series 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.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


21 valid minerals. 1 erroneous literature entry.

Rock Types Recorded

Note: 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:

β“˜ Alunite
Formula: KAl3(SO4)2(OH)6
β“˜ Baryte
Formula: BaSO4
Description: Occurs in veins in and around Lead Mountain.
β“˜ Bayldonite
Formula: PbCu3(AsO4)2(OH)2
Description: The bayldonite/duftite specimens came from the Hope/Lower Copper prospect, not from the Lead Mountain mine.
β“˜ Calcite
Formula: CaCO3
β“˜ Cerussite
Formula: PbCO3
β“˜ Chlorargyrite
Formula: AgCl
β“˜ Cinnabar
Formula: HgS
β“˜ Coronadite
Formula: Pb(Mn4+6Mn3+2)O16
β“˜ Cryptomelane
Formula: K(Mn4+7Mn3+)O16
β“˜ Fibroferrite
Formula: Fe3+(SO4)(OH) · 5H2O
β“˜ Galena
Formula: PbS
β“˜ Goethite
Formula: Ξ±-Fe3+O(OH)
Habit: translucent blades on barite
Colour: red, reddish brown, black, silver
β“˜ Hemimorphite
Formula: Zn4Si2O7(OH)2 · H2O
Description: Occurs as crusts and radiating clusters of slender crystals in cavities in Baryte.
β“˜ Hetaerolite
Formula: ZnMn2O4
β“˜ Malachite
Formula: Cu2(CO3)(OH)2
β“˜ Mimetite
Formula: Pb5(AsO4)3Cl
β“˜ Murdochite ?
Formula: Cu12Pb2O15Cl2
β“˜ Plattnerite
Formula: PbO2
β“˜ Rosasite
Formula: (Cu,Zn)2(CO3)(OH)2
β“˜ Smithsonite
Formula: ZnCO3
β“˜ Sulphur ?
Formula: S8
β“˜ Willemite
Formula: Zn2SiO4
Habit: white blob on barite, 100um in diameter
Colour: white
Fluorescence: very strong white fluorescence

Gallery:

BaSO4β“˜ Baryte
Pb(Mn4+6Mn3+2)O16β“˜ Coronadite
Zn4Si2O7(OH)2 · H2Oβ“˜ Hemimorphite
ZnMn2O4β“˜ Hetaerolite

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Sulphur ?1.CC.05S8
Group 2 - Sulphides and Sulfosalts
β“˜Galena2.CD.10PbS
β“˜Cinnabar2.CD.15aHgS
Group 3 - Halides
β“˜Chlorargyrite3.AA.15AgCl
β“˜Murdochite ?3.DB.45Cu12Pb2O15Cl2
Group 4 - Oxides and Hydroxides
β“˜Goethite4.00.Ξ±-Fe3+O(OH)
β“˜Hetaerolite4.BB.10ZnMn2O4
β“˜Plattnerite4.DB.05PbO2
β“˜Coronadite4.DK.05aPb(Mn4+6Mn3+2)O16
β“˜Cryptomelane4.DK.05aK(Mn4+7Mn3+)O16
Group 5 - Nitrates and Carbonates
β“˜Calcite5.AB.05CaCO3
β“˜Smithsonite5.AB.05ZnCO3
β“˜Cerussite5.AB.15PbCO3
β“˜Rosasite5.BA.10(Cu,Zn)2(CO3)(OH)2
β“˜Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
β“˜Baryte7.AD.35BaSO4
β“˜Alunite7.BC.10KAl3(SO4)2(OH)6
β“˜Fibroferrite7.DC.15Fe3+(SO4)(OH) Β· 5H2O
Group 8 - Phosphates, Arsenates and Vanadates
β“˜Bayldonite ?8.BH.45PbCu3(AsO4)2(OH)2
β“˜Mimetite8.BN.05Pb5(AsO4)3Cl
Group 9 - Silicates
β“˜Willemite9.AA.05Zn2SiO4
β“˜Hemimorphite9.BD.10Zn4Si2O7(OH)2 Β· H2O

List of minerals for each chemical element

HHydrogen
Hβ“˜ AluniteKAl3(SO4)2(OH)6
Hβ“˜ BayldonitePbCu3(AsO4)2(OH)2
Hβ“˜ FibroferriteFe3+(SO4)(OH) · 5H2O
Hβ“˜ GoethiteΞ±-Fe3+O(OH)
Hβ“˜ HemimorphiteZn4Si2O7(OH)2 · H2O
Hβ“˜ MalachiteCu2(CO3)(OH)2
Hβ“˜ Rosasite(Cu,Zn)2(CO3)(OH)2
CCarbon
Cβ“˜ CalciteCaCO3
Cβ“˜ CerussitePbCO3
Cβ“˜ MalachiteCu2(CO3)(OH)2
Cβ“˜ Rosasite(Cu,Zn)2(CO3)(OH)2
Cβ“˜ SmithsoniteZnCO3
OOxygen
Oβ“˜ AluniteKAl3(SO4)2(OH)6
Oβ“˜ BaryteBaSO4
Oβ“˜ BayldonitePbCu3(AsO4)2(OH)2
Oβ“˜ CalciteCaCO3
Oβ“˜ CerussitePbCO3
Oβ“˜ CoronaditePb(Mn64+Mn23+)O16
Oβ“˜ CryptomelaneK(Mn74+Mn3+)O16
Oβ“˜ FibroferriteFe3+(SO4)(OH) · 5H2O
Oβ“˜ GoethiteΞ±-Fe3+O(OH)
Oβ“˜ HemimorphiteZn4Si2O7(OH)2 · H2O
Oβ“˜ HetaeroliteZnMn2O4
Oβ“˜ MalachiteCu2(CO3)(OH)2
Oβ“˜ MimetitePb5(AsO4)3Cl
Oβ“˜ MurdochiteCu12Pb2O15Cl2
Oβ“˜ PlattneritePbO2
Oβ“˜ Rosasite(Cu,Zn)2(CO3)(OH)2
Oβ“˜ SmithsoniteZnCO3
Oβ“˜ WillemiteZn2SiO4
AlAluminium
Alβ“˜ AluniteKAl3(SO4)2(OH)6
SiSilicon
Siβ“˜ HemimorphiteZn4Si2O7(OH)2 · H2O
Siβ“˜ WillemiteZn2SiO4
SSulfur
Sβ“˜ AluniteKAl3(SO4)2(OH)6
Sβ“˜ BaryteBaSO4
Sβ“˜ CinnabarHgS
Sβ“˜ FibroferriteFe3+(SO4)(OH) · 5H2O
Sβ“˜ GalenaPbS
Sβ“˜ SulphurS8
ClChlorine
Clβ“˜ ChlorargyriteAgCl
Clβ“˜ MimetitePb5(AsO4)3Cl
Clβ“˜ MurdochiteCu12Pb2O15Cl2
KPotassium
Kβ“˜ AluniteKAl3(SO4)2(OH)6
Kβ“˜ CryptomelaneK(Mn74+Mn3+)O16
CaCalcium
Caβ“˜ CalciteCaCO3
MnManganese
Mnβ“˜ CoronaditePb(Mn64+Mn23+)O16
Mnβ“˜ CryptomelaneK(Mn74+Mn3+)O16
Mnβ“˜ HetaeroliteZnMn2O4
FeIron
Feβ“˜ FibroferriteFe3+(SO4)(OH) · 5H2O
Feβ“˜ GoethiteΞ±-Fe3+O(OH)
CuCopper
Cuβ“˜ BayldonitePbCu3(AsO4)2(OH)2
Cuβ“˜ MalachiteCu2(CO3)(OH)2
Cuβ“˜ MurdochiteCu12Pb2O15Cl2
Cuβ“˜ Rosasite(Cu,Zn)2(CO3)(OH)2
ZnZinc
Znβ“˜ HemimorphiteZn4Si2O7(OH)2 · H2O
Znβ“˜ HetaeroliteZnMn2O4
Znβ“˜ Rosasite(Cu,Zn)2(CO3)(OH)2
Znβ“˜ SmithsoniteZnCO3
Znβ“˜ WillemiteZn2SiO4
AsArsenic
Asβ“˜ BayldonitePbCu3(AsO4)2(OH)2
Asβ“˜ MimetitePb5(AsO4)3Cl
AgSilver
Agβ“˜ ChlorargyriteAgCl
BaBarium
Baβ“˜ BaryteBaSO4
HgMercury
Hgβ“˜ CinnabarHgS
PbLead
Pbβ“˜ BayldonitePbCu3(AsO4)2(OH)2
Pbβ“˜ CerussitePbCO3
Pbβ“˜ CoronaditePb(Mn64+Mn23+)O16
Pbβ“˜ GalenaPbS
Pbβ“˜ MimetitePb5(AsO4)3Cl
Pbβ“˜ MurdochiteCu12Pb2O15Cl2
Pbβ“˜ PlattneritePbO2

Other Databases

Link to USGS MRDS:10077227

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Housley, Robert, private communication to Michael B. Moore.
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, Webb, Robert W. (1942) Notes on some minerals from southern California. III. American Mineralogist, 27 (4) 323-330
Tucker, W. Burling, Reid J. Sampson (1943) Mineral resources of San Bernardino County. California Journal of Mines and Geology, 39 (4) 427-549p.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. Bulletin Vol. 1072B. US Geological Survey doi:10.3133/b1072b p.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. Van Nostrand Reinhold Company Inc.
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.
U.S. Bureau of Mines (1995), Minerals Availability System/Mineral Industry Location System (MAS/MILS): file #0060710261.
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Housley Robert M. (2008) The Lead Mountain Field Trip, Bulletin of the Mineralogical Society of Southern California: 79(3) (March 2008): 6-9.
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