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Contention Mine, Contention-Grand Central Mine group, Tombstone Mining District, Cochise County, Arizona, USAi
Regional Level Types
Contention MineMine
Contention-Grand Central Mine group- not defined -
Tombstone Mining DistrictMining District
Cochise CountyCounty
ArizonaState
USACountry

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PhotosMapsSearch
Latitude & Longitude (WGS84):
31° North , 110° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~1km
Type:
Mindat Locality ID:
10318
Long-form identifier:
mindat:1:2:10318:8
GUID (UUID V4):
550bf326-807f-48a5-b2b9-27b4d69396c6


A Ag-Au-Pb-Cu-Zn mine located in T.20S., R.22E. (Tombstone 15 minute topo map). Owned at times, or in part, by the Western Mining Co., Grand Central Mining Co., Tombstone Mill & Mining Co., Head Center Co., Head Center & Tranquility Co., Contention Mining Co., Tombstone Consolidated Mines Co., Bunker Hill Mines Co., and the Tombstone Development Co.

Mineralization is oxidized argentiferous and auriferous galena and minor copper and zinc ores in large, rich orebodies in faulted and fractured segments of a large dike, and in brecciated footwall zones of the dike. Ore was also found in replacements of Cretaceous Bisbee Group limestone beds where intersected by "northeast" fissures.

Workings included extensive shaft(s). One of the earliest and most productive mines of the district. Over $10,000,000 was produced prior to 1886 and several hundred thousand tons were produced from the 1880's to the early 1900's. There was some sporadic production up to 1929.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


6 valid minerals.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Galena2.CD.10PbS
var. Silver-bearing Galena2.CD.10PbS with Ag
Group 3 - Halides
Chlorargyrite3.AA.15AgCl
Group 4 - Oxides and Hydroxides
Opal
var. Opal-AN
4.DA.10SiO2 · nH2O
4.DA.10SiO2 · nH2O
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Wulfenite7.GA.05Pb(MoO4)
Group 9 - Silicates
Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1

List of minerals for each chemical element

HHydrogen
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
H Opal var. Opal-ANSiO2 · nH2O
H OpalSiO2 · nH2O
OOxygen
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
O Opal var. Opal-ANSiO2 · nH2O
O OpalSiO2 · nH2O
O WulfenitePb(MoO4)
AlAluminium
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
SiSilicon
Si ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Si Opal var. Opal-ANSiO2 · nH2O
Si OpalSiO2 · nH2O
SSulfur
S GalenaPbS
S Galena var. Silver-bearing GalenaPbS with Ag
ClChlorine
Cl ChlorargyriteAgCl
CuCopper
Cu ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
MoMolybdenum
Mo WulfenitePb(MoO4)
AgSilver
Ag ChlorargyriteAgCl
Ag Galena var. Silver-bearing GalenaPbS with Ag
AuGold
Au GoldAu
PbLead
Pb GalenaPbS
Pb WulfenitePb(MoO4)
Pb Galena var. Silver-bearing GalenaPbS with Ag

Other Regions, Features and Areas containing this locality

Mexico
North America
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

 
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