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Duplex mine, Searchlight Deposit, Searchlight District, Clark Co., Nevada, USAi
Regional Level Types
Duplex mineMine
Searchlight Deposit- not defined -
Searchlight DistrictMining District
Clark Co.County
NevadaState
USACountry

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Key
Lock Map
Latitude & Longitude (WGS84): 35° 27' 38'' North , 114° 55' 15'' West
Latitude & Longitude (decimal): 35.46069,-114.92088
GeoHash:G#: 9qq38zmjt
USGS MRDS Record:10046990
Locality type:Mine
Köppen climate type:BWh : Hot deserts climate
Nearest Settlements:
PlacePopulationDistance
Searchlight539 (2011)0.5km
Cal-Nev-Ari244 (2011)17.6km
Katherine103 (2011)42.0km
Laughlin7,323 (2011)45.3km
Bullhead City39,445 (2017)47.2km


Sec 34 T28S R64E. Au Ag Cu Pb
Structure: Normal Faults (Fault Horses Occur Within The Vein)

Deposit: Duplex mine includes 6 patented claims. ; info.src : 1 pub lit; 3 field observ

Deposit type: Polymetallic veins

Development: 1903 it was one of three mines to have a mill. 1904-1907 it was operated jointly with the good hope mine by john brockman. 1911-1915 it was held by the homestead mining & milling co.

Geology: Exploration east of the fault does not seem to be complete (1939) . Most productive parts of the vein were those that were nearly horizontal.

Ore(s): Regional Fracturing In Less Competent Rocks Around The Border Of The Quartz Monzonite Body.

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


15 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

Detailed Mineral List:

Azurite
Formula: Cu3(CO3)2(OH)2
Reference: NBMG Spec. Pub. 31 Minerals of Nevada
'Calamine'
Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Calcite
Formula: CaCO3
Reference: NBMG Spec. Pub. 31 Minerals of Nevada
Cerussite
Formula: PbCO3
Reference: NBMG Bull 62 Geology and Mineral Deposits of Clark County, Nevada; NBMG Open File Report 79-3
Chalcopyrite
Formula: CuFeS2
Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Reference: NBMG Bull 62 Geology and Mineral Deposits of Clark County, Nevada; NBMG Open File Report 79-3
Cuprite
Formula: Cu2O
Reference: NBMG Bull 62 Geology and Mineral Deposits of Clark County, Nevada
Galena
Formula: PbS
Reference: NBMG Bull 62 Geology and Mineral Deposits of Clark County, Nevada; NBMG Open File Report 79-3; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Gold
Formula: Au
Reference: NBMG Bull 62 Geology and Mineral Deposits of Clark County, Nevada
Hematite
Formula: Fe2O3
Reference: NBMG Bull 62 Geology and Mineral Deposits of Clark County, Nevada
Hemimorphite
Formula: Zn4Si2O7(OH)2 · H2O
Reference: NBMG Open File Report 79-3; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Leadhillite
Formula: Pb4(CO3)2(SO4)(OH)2
Reference: NBMG Spec. Pub. 31 Minerals of Nevada
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Malachite
Formula: Cu2(CO3)(OH)2
Reference: NBMG Open File Report 79-3
Mottramite
Formula: PbCu(VO4)(OH)
Reference: NBMG Open File Report 79-3; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.
Quartz
Formula: SiO2
Reference: NBMG Bull 62 Geology and Mineral Deposits of Clark County, Nevada; NBMG Open File Report 79-3
Wulfenite
Formula: Pb(MoO4)
Reference: NBMG Bull 62 Geology and Mineral Deposits of Clark County, Nevada; U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
Group 4 - Oxides and Hydroxides
Cuprite4.AA.10Cu2O
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Azurite5.BA.05Cu3(CO3)2(OH)2
Calcite5.AB.05CaCO3
Cerussite5.AB.15PbCO3
Leadhillite5.BF.40Pb4(CO3)2(SO4)(OH)2
Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Wulfenite7.GA.05Pb(MoO4)
Group 8 - Phosphates, Arsenates and Vanadates
Mottramite8.BH.40PbCu(VO4)(OH)
Group 9 - Silicates
Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Hemimorphite9.BD.10Zn4Si2O7(OH)2 · H2O
Unclassified Minerals, Rocks, etc.
'Calamine'-
'Limonite'-(Fe,O,OH,H2O)

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
Group 4 - SIMPLE OXIDES
A2X
Cuprite4.1.1.1Cu2O
A2X3
Hematite4.3.1.2Fe2O3
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Cerussite14.1.3.4PbCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Azurite16a.2.1.1Cu3(CO3)2(OH)2
Malachite16a.3.1.1Cu2(CO3)(OH)2
Group 17 - COMPOUND CARBONATES
Miscellaneous
Leadhillite17.1.2.1Pb4(CO3)2(SO4)(OH)2
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Mottramite41.5.2.2PbCu(VO4)(OH)
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Wulfenite48.1.3.1Pb(MoO4)
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
Group 74 - PHYLLOSILICATES Modulated Layers
Modulated Layers with joined strips
Chrysocolla74.3.2.1Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Calamine'-
'Limonite'-(Fe,O,OH,H2O)

List of minerals for each chemical element

HHydrogen
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
H AzuriteCu3(CO3)2(OH)2
H LeadhillitePb4(CO3)2(SO4)(OH)2
H MalachiteCu2(CO3)(OH)2
H MottramitePbCu(VO4)(OH)
H HemimorphiteZn4Si2O7(OH)2 · H2O
H Limonite(Fe,O,OH,H2O)
CCarbon
C CerussitePbCO3
C AzuriteCu3(CO3)2(OH)2
C LeadhillitePb4(CO3)2(SO4)(OH)2
C CalciteCaCO3
C MalachiteCu2(CO3)(OH)2
OOxygen
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
O CupriteCu2O
O CerussitePbCO3
O HematiteFe2O3
O WulfenitePb(MoO4)
O QuartzSiO2
O AzuriteCu3(CO3)2(OH)2
O LeadhillitePb4(CO3)2(SO4)(OH)2
O CalciteCaCO3
O MalachiteCu2(CO3)(OH)2
O MottramitePbCu(VO4)(OH)
O HemimorphiteZn4Si2O7(OH)2 · H2O
O Limonite(Fe,O,OH,H2O)
AlAluminium
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
SiSilicon
Si ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Si QuartzSiO2
Si HemimorphiteZn4Si2O7(OH)2 · H2O
SSulfur
S GalenaPbS
S LeadhillitePb4(CO3)2(SO4)(OH)2
S ChalcopyriteCuFeS2
CaCalcium
Ca CalciteCaCO3
VVanadium
V MottramitePbCu(VO4)(OH)
FeIron
Fe HematiteFe2O3
Fe ChalcopyriteCuFeS2
Fe Limonite(Fe,O,OH,H2O)
CuCopper
Cu ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O
Cu CupriteCu2O
Cu AzuriteCu3(CO3)2(OH)2
Cu MalachiteCu2(CO3)(OH)2
Cu MottramitePbCu(VO4)(OH)
Cu ChalcopyriteCuFeS2
ZnZinc
Zn HemimorphiteZn4Si2O7(OH)2 · H2O
MoMolybdenum
Mo WulfenitePb(MoO4)
AuGold
Au GoldAu
PbLead
Pb GalenaPbS
Pb CerussitePbCO3
Pb WulfenitePb(MoO4)
Pb LeadhillitePb4(CO3)2(SO4)(OH)2
Pb MottramitePbCu(VO4)(OH)

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]

Miocene
5.333 - 23.03 Ma



ID: 2781346
Younger andesite and intermediate flows and breccias

Age: Miocene (5.333 - 23.03 Ma)

Stratigraphic Name: Kate Peak Formation; Alta Formation; Wahmonie Formation; Salyer Formation; Gilbert Andesite

Description: Includes some rocks mapped as the Kate Peak and Alta Formations on the Washoe South map; Wahmonie and Salyer Formations on the Nye South map; Gilbert Andesite on the Esmeralda map; pyroxene, hornblende phenoandesite, and phenodacite on the Elko map; and other unnamed units. It corresponds to the unit Ta3 on the 1978 State map. It is present everywhere except Eureka and White Pine Counties.

Comments: Original map source: Crafford, A.E.J., 2007, Geologic Map of Nevada: U.S. Geological Survey Data Series 249, 1 CD-ROM, 46 p., 1 plate; Scale 1:250,000.

Lithology: Major:{andesite,dacite}

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)
Callagham, E, (1939), Geology of the Searchlight Dist., Clark Co., Nev., USGS Bull 906-d, P. 165-172.
Longwell, C.R., (1965), Geology and Mineral Deposits of Clark Co., Nevnev. Bureau of Mines Bull 62, Pq. 201.
Ransome, R.L., (1907), Preliminary Account of Goldfield, Bullfrog and Othe Mining Dist. Inc Southern Nevada, USGS Bu.. 303, P.72.
Tingley, J.V., (1983), Field Observation, NBMG, 4/27/83
Schilling, J., (1962), NBMG Report 2.


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