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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
BarstowCity
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):
Type:
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):
0


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


22 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:

Alunite
Formula: KAl3(SO4)2(OH)6
Baryte
Formula: BaSO4
Description: Occurs in veins in and around Lead Mountain.
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.
Calcite
Formula: CaCO3
Cerussite
Formula: PbCO3
Chlorargyrite
Formula: AgCl
Cinnabar
Formula: HgS
Coronadite
Formula: Pb(Mn4+6Mn3+2)O16
Cryptomelane
Formula: K(Mn4+7Mn3+)O16
Fibroferrite
Formula: Fe3+(SO4)(OH) · 5H2O
Galena
Formula: PbS
Goethite
Formula: Fe3+O(OH)
Habit: translucent blades on barite
Colour: red, reddish brown, black, silver
Hemimorphite
Formula: Zn4Si2O7(OH)2 · H2O
Description: Occurs as crusts and radiating clusters of slender crystals in cavities in Baryte.
Hetaerolite
Formula: ZnMn2O4
Malachite
Formula: Cu2(CO3)(OH)2
Mimetite
Formula: Pb5(AsO4)3Cl
Minium
Formula: Pb3O4
References:
Zach Berghorst CollectionIdentified by Zach Berghorst: Visual Identification
Murdochite ?
Formula: Cu12Pb2O15Cl2
Native Sulphur ?
Formula: S8
Plattnerite
Formula: PbO2
Rosasite
Formula: (Cu,Zn)2(CO3)(OH)2
Smithsonite
Formula: ZnCO3
Willemite
Formula: Zn2SiO4
Habit: white blob on barite, 100um in diameter
Colour: white
Fluorescence: very strong white fluorescence

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Native Sulphur ?1.CC.05S8
Group 2 - Sulphides and Sulfosalts
Galena2.CD.10PbS
Cinnabar2.CD.15aHgS
Group 3 - Halides
Chlorargyrite3.AA.15AgCl
Murdochite ?3.DB.45Cu12Pb2O15Cl2
Group 4 - Oxides and Hydroxides
Goethite4.00.Fe3+O(OH)
Hetaerolite4.BB.10ZnMn2O4
Minium4.BD.05Pb3O4
Plattnerite4.DB.05PbO2
Coronadite4.DK.05aPb(Mn4+6Mn3+2)O16
Cryptomelane4.DK.05aK(Mn4+7Mn3+)O16
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Smithsonite5.AB.05ZnCO3
Cerussite5.AB.15PbCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Rosasite5.BA.10(Cu,Zn)2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Alunite7.BC.10KAl3(SO4)2(OH)6
Fibroferrite7.DC.15Fe3+(SO4)(OH) · 5H2O
Group 8 - Phosphates, Arsenates and Vanadates
Bayldonite ?8.BH.45PbCu3(AsO4)2(OH)2
Mimetite8.BN.05Pb5(AsO4)3Cl
Group 9 - Silicates
Willemite9.AA.05Zn2SiO4
Hemimorphite9.BD.10Zn4Si2O7(OH)2 · H2O

List of minerals for each chemical element

HHydrogen
H AluniteKAl3(SO4)2(OH)6
H BayldonitePbCu3(AsO4)2(OH)2
H FibroferriteFe3+(SO4)(OH) · 5H2O
H GoethiteFe3+O(OH)
H HemimorphiteZn4Si2O7(OH)2 · H2O
H MalachiteCu2(CO3)(OH)2
H Rosasite(Cu,Zn)2(CO3)(OH)2
CCarbon
C CalciteCaCO3
C CerussitePbCO3
C MalachiteCu2(CO3)(OH)2
C Rosasite(Cu,Zn)2(CO3)(OH)2
C SmithsoniteZnCO3
OOxygen
O AluniteKAl3(SO4)2(OH)6
O BaryteBaSO4
O BayldonitePbCu3(AsO4)2(OH)2
O CalciteCaCO3
O CerussitePbCO3
O CoronaditePb(Mn64+Mn23+)O16
O CryptomelaneK(Mn74+Mn3+)O16
O FibroferriteFe3+(SO4)(OH) · 5H2O
O GoethiteFe3+O(OH)
O HemimorphiteZn4Si2O7(OH)2 · H2O
O HetaeroliteZnMn2O4
O MalachiteCu2(CO3)(OH)2
O MimetitePb5(AsO4)3Cl
O MiniumPb3O4
O MurdochiteCu12Pb2O15Cl2
O PlattneritePbO2
O Rosasite(Cu,Zn)2(CO3)(OH)2
O SmithsoniteZnCO3
O WillemiteZn2SiO4
AlAluminium
Al AluniteKAl3(SO4)2(OH)6
SiSilicon
Si HemimorphiteZn4Si2O7(OH)2 · H2O
Si WillemiteZn2SiO4
SSulfur
S AluniteKAl3(SO4)2(OH)6
S BaryteBaSO4
S CinnabarHgS
S FibroferriteFe3+(SO4)(OH) · 5H2O
S GalenaPbS
S Native SulphurS8
ClChlorine
Cl ChlorargyriteAgCl
Cl MimetitePb5(AsO4)3Cl
Cl MurdochiteCu12Pb2O15Cl2
KPotassium
K AluniteKAl3(SO4)2(OH)6
K CryptomelaneK(Mn74+Mn3+)O16
CaCalcium
Ca CalciteCaCO3
MnManganese
Mn CoronaditePb(Mn64+Mn23+)O16
Mn CryptomelaneK(Mn74+Mn3+)O16
Mn HetaeroliteZnMn2O4
FeIron
Fe FibroferriteFe3+(SO4)(OH) · 5H2O
Fe GoethiteFe3+O(OH)
CuCopper
Cu BayldonitePbCu3(AsO4)2(OH)2
Cu MalachiteCu2(CO3)(OH)2
Cu MurdochiteCu12Pb2O15Cl2
Cu Rosasite(Cu,Zn)2(CO3)(OH)2
ZnZinc
Zn HemimorphiteZn4Si2O7(OH)2 · H2O
Zn HetaeroliteZnMn2O4
Zn Rosasite(Cu,Zn)2(CO3)(OH)2
Zn SmithsoniteZnCO3
Zn WillemiteZn2SiO4
AsArsenic
As BayldonitePbCu3(AsO4)2(OH)2
As MimetitePb5(AsO4)3Cl
AgSilver
Ag ChlorargyriteAgCl
BaBarium
Ba BaryteBaSO4
HgMercury
Hg CinnabarHgS
PbLead
Pb BayldonitePbCu3(AsO4)2(OH)2
Pb CerussitePbCO3
Pb CoronaditePb(Mn64+Mn23+)O16
Pb GalenaPbS
Pb MimetitePb5(AsO4)3Cl
Pb MiniumPb3O4
Pb MurdochiteCu12Pb2O15Cl2
Pb PlattneritePbO2

Other Databases

Link to USGS MRDS:10077227

Other Regions, Features and Areas containing this locality


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