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Defense Mine, Lookout City, Lookout Mining District (Modoc Mining District), Argus Mts (Argus Range), Inyo County, California, USAi
Regional Level Types
Defense MineMine
Lookout CityCity
Lookout Mining District (Modoc Mining District)Mining District
Argus Mts (Argus Range)Mountain Range
Inyo CountyCounty
CaliforniaState
USACountry

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Latitude & Longitude (WGS84):
36° 14' 42'' North , 117° 27' 38'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Searles Valley1,739 (2011)53.3km
Mindat Locality ID:
27210
Long-form identifier:
mindat:1:2:27210:5
GUID (UUID V4):
0


A former Pb-Ag-Au-Zn-Cu mine located in sec. 31, T19S, R42E, MDM, 2.3 km (1.4 miles) W of Lookout City, N of Stone Canyon (8 air miles S of Panamint Springs), on Bureau of Land Management wilderness land (Argus Range Wilderness) (located claim). Discovered in 1885. Owned & operated by L. D. Foreman (99%) (1969). MRDS database stated accuracy for this location is 10 meters.

Mineralization is a replacement type deposit hosted in Pennsylvanian limestone. The ore body strikes N70W and dips 65N at a thickness of 10 meters, width of 50 meters and a length of 100 meters, and with a depth-to-top of 30 meters. The ore body is irregular. The primary mode of origin was hydrothermal. Primary ore control was lithology. Secondary ore control was faulting. The ore bodies are en echelon in the vertical plane, separated by near vertical faults. They are encased in an envelope of jasper, rich in Fe & Mn oxides, in limestone along flat faults which nearly coincide with bedding. Local alteration is dolomitization. Local rocks include Carboniferous marine rocks, unit 2 (SE California Carbonate Assemblage).

Local structures include faults.

Workings include underground openings. 2 adits were used as haulage ways. Intervening ground was developed from winzes and raises. Diamond drilling was conducted in 1952-1953 period and disclosed an ore body on an intermediate level, 30 feet by 100 feet by several hundred feet.

Comments on the production information: 1942-1952: Ore averaged 21.3% Pb, 12.7 ounces Ag/ton, 0.146% Cu, with some Au & Zn. All ore ran high in Mn & Fe.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


19 valid minerals.

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:

Anglesite
Formula: PbSO4
'Bindheimite'
Formula: Pb2Sb2O6O
Brochantite
Formula: Cu4(SO4)(OH)6
Description: Occurs in Ag ores.
Bromargyrite
Formula: AgBr
Calcite
Formula: CaCO3
Description: A common vein mineral.
Caledonite
Formula: Pb5Cu2(SO4)3(CO3)(OH)6
Cerussite
Formula: PbCO3
Chlorargyrite
Formula: AgCl
Habit: Cubes
Description: Occurs as cubes and irregular smears.
Coronadite
Formula: Pb(Mn4+6Mn3+2)O16
Cryptomelane
Formula: K(Mn4+7Mn3+)O16
Ecdemite
Formula: Pb6As3+2O7Cl4
Description: Occurs as an alteration product of mimetite.
Fornacite
Formula: Pb2Cu(CrO4)(AsO4)(OH)
Galena
Formula: PbS
Linarite
Formula: PbCu(SO4)(OH)2
Malachite
Formula: Cu2(CO3)(OH)2
'Manganese Oxides'
Mimetite
Formula: Pb5(AsO4)3Cl
Pyrite
Formula: FeS2
References:
Gabe Cangelosi CollectionIdentified by Gabe Cangelosi: Visual Identification
Pyrolusite
Formula: Mn4+O2
Quartz
Formula: SiO2
Description: Occurs as an envelope encasing the ore bodies. Rich in Mn & Fe oxides.
Shattuckite
Formula: Cu5(Si2O6)2(OH)2

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Group 3 - Halides
Bromargyrite3.AA.15AgBr
Chlorargyrite3.AA.15AgCl
Ecdemite3.DC.65Pb6As3+2O7Cl4
Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Pyrolusite4.DB.05Mn4+O2
'Bindheimite'4.DH.20Pb2Sb2O6O
Coronadite4.DK.05aPb(Mn4+6Mn3+2)O16
Cryptomelane4.DK.05aK(Mn4+7Mn3+)O16
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Cerussite5.AB.15PbCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Anglesite7.AD.35PbSO4
Brochantite7.BB.25Cu4(SO4)(OH)6
Caledonite7.BC.50Pb5Cu2(SO4)3(CO3)(OH)6
Linarite7.BC.65PbCu(SO4)(OH)2
Fornacite7.FC.10Pb2Cu(CrO4)(AsO4)(OH)
Group 8 - Phosphates, Arsenates and Vanadates
Mimetite8.BN.05Pb5(AsO4)3Cl
Group 9 - Silicates
Shattuckite9.DB.40Cu5(Si2O6)2(OH)2
Unclassified
'Manganese Oxides'-

List of minerals for each chemical element

HHydrogen
H BrochantiteCu4(SO4)(OH)6
H CaledonitePb5Cu2(SO4)3(CO3)(OH)6
H FornacitePb2Cu(CrO4)(AsO4)(OH)
H LinaritePbCu(SO4)(OH)2
H MalachiteCu2(CO3)(OH)2
H ShattuckiteCu5(Si2O6)2(OH)2
CCarbon
C CalciteCaCO3
C CaledonitePb5Cu2(SO4)3(CO3)(OH)6
C CerussitePbCO3
C MalachiteCu2(CO3)(OH)2
OOxygen
O AnglesitePbSO4
O BindheimitePb2Sb2O6O
O BrochantiteCu4(SO4)(OH)6
O CalciteCaCO3
O CaledonitePb5Cu2(SO4)3(CO3)(OH)6
O CerussitePbCO3
O CoronaditePb(Mn64+Mn23+)O16
O CryptomelaneK(Mn74+Mn3+)O16
O EcdemitePb6As23+O7Cl4
O FornacitePb2Cu(CrO4)(AsO4)(OH)
O LinaritePbCu(SO4)(OH)2
O MalachiteCu2(CO3)(OH)2
O MimetitePb5(AsO4)3Cl
O PyrolusiteMn4+O2
O QuartzSiO2
O ShattuckiteCu5(Si2O6)2(OH)2
SiSilicon
Si QuartzSiO2
Si ShattuckiteCu5(Si2O6)2(OH)2
SSulfur
S AnglesitePbSO4
S BrochantiteCu4(SO4)(OH)6
S CaledonitePb5Cu2(SO4)3(CO3)(OH)6
S GalenaPbS
S LinaritePbCu(SO4)(OH)2
S PyriteFeS2
ClChlorine
Cl ChlorargyriteAgCl
Cl EcdemitePb6As23+O7Cl4
Cl MimetitePb5(AsO4)3Cl
KPotassium
K CryptomelaneK(Mn74+Mn3+)O16
CaCalcium
Ca CalciteCaCO3
CrChromium
Cr FornacitePb2Cu(CrO4)(AsO4)(OH)
MnManganese
Mn CoronaditePb(Mn64+Mn23+)O16
Mn CryptomelaneK(Mn74+Mn3+)O16
Mn PyrolusiteMn4+O2
FeIron
Fe PyriteFeS2
CuCopper
Cu BrochantiteCu4(SO4)(OH)6
Cu CaledonitePb5Cu2(SO4)3(CO3)(OH)6
Cu FornacitePb2Cu(CrO4)(AsO4)(OH)
Cu LinaritePbCu(SO4)(OH)2
Cu MalachiteCu2(CO3)(OH)2
Cu ShattuckiteCu5(Si2O6)2(OH)2
AsArsenic
As EcdemitePb6As23+O7Cl4
As FornacitePb2Cu(CrO4)(AsO4)(OH)
As MimetitePb5(AsO4)3Cl
BrBromine
Br BromargyriteAgBr
AgSilver
Ag BromargyriteAgBr
Ag ChlorargyriteAgCl
SbAntimony
Sb BindheimitePb2Sb2O6O
PbLead
Pb AnglesitePbSO4
Pb BindheimitePb2Sb2O6O
Pb CaledonitePb5Cu2(SO4)3(CO3)(OH)6
Pb CerussitePbCO3
Pb CoronaditePb(Mn64+Mn23+)O16
Pb EcdemitePb6As23+O7Cl4
Pb FornacitePb2Cu(CrO4)(AsO4)(OH)
Pb GalenaPbS
Pb LinaritePbCu(SO4)(OH)2
Pb MimetitePb5(AsO4)3Cl

Other Databases

Link to USGS MRDS:10076654

Other Regions, Features and Areas containing this locality


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