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

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Latitude & Longitude (WGS84):
31° 42' 9'' North , 110° 3' 42'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Tombstone1,312 (2017)1.3km
Whetstone2,617 (2017)26.3km
Saint David1,699 (2011)26.6km
Huachuca City1,755 (2017)27.0km
Sierra Vista43,355 (2017)28.2km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Huachuca Mineral and Gem ClubSierra Vista, Arizona28km
Sunsites Gem and Mineral ClubPearce, Arizona32km
Mindat Locality ID:
3389
Long-form identifier:
mindat:1:2:3389:6
GUID (UUID V4):
8b693b3b-bde8-4758-9491-7f53956b8b46


A former large output underground Ag-Au-Pb-Cu-Zn occurrence/mine located in T20S, R22E, on a claim of 1,500 feet (0.46 km) by 600 feet (0.18 km), ΒΎ mile S of Tombstone, on private land. Owned at times, or in part, by the Western Mining Company; the Centurion-Arizona Mining Company; the Grand Central Mining Company; the Tombstone Mill & Mining Company; the Head Center Company; the Head Center & Tranquility Company; the Contention Mining Company; the Tombstone Consolidated Mines Company; the Bunker Hill Mines Company; A.P. Giacoma; and the Tombstone Development Company.

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, hosted in the Bisbee Group Limestone. Ore was also found in replacements of Cretaceous Bisbee Group limestone beds that were intersected by "northeast" fissures. The Bisbee Group limestone is recrystallized. Associated rocks include Late Cretaceous diorite. Local rocks include Cretaceous to Late Jurassic sedimentary rocks with minor volcanic rocks.

The shaft is in the N-S Tranquility Fault, dipping 67-70SE. This fault is cut within the workings by the Grand Central Fault, which strikes NW.

Local structures include the Tombstone Basin.

Workings include underground openings with extensive shaft(s), with one to 500 feet (ca. 152 m) deep; 3 levels at 500, 600 & 1100 feet (ca. 335 m). Workings total 1524 meters long and 137.16 meters deep. Workings were on six levels, many stopes were in the upper 250 feet (ca. 76 m). The total length of workings is estimated. There are 2 shafts, the northerly shaft is the deepest. The workings adjoin the Contention workings to the north. One of the earliest and most productive mines of the district.

Over $10,000,000 (period values) was produced prior to 1886 and several hundred thousand tons were produced from the 1880s to the early 1900s. After 1886, production includes the Contention shaft. There was some sporadic production up to 1929.

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


24 valid minerals. 6 (TL) - type locality of valid minerals. 1 (FRL) - first recorded locality of unapproved mineral/variety/etc. 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“˜ Aldomarinoite
Formula: Sr2Mn3+(AsO4)2(OH)
Description: see https://www.mindat.org/mesg-573772.html
β“˜ Altaite
Formula: PbTe
Description: Occurs rimmed by dunhamite.
β“˜ Anatase
Formula: TiO2
βœͺ Backite (TL)
Formula: Pb2AlTeO6Cl
Type Locality:
Habit: Hexagonal plates stacked on each other.
Colour: Gray to white.
βœͺ Bairdite
Formula: Pb2Cu2+4Te6+2O10(OH)2(SO4) · H2O
Habit: Monoclinic crystal shaped like a spear.
Colour: Bright, fluorescent green.
β“˜ Cerussite
Formula: PbCO3
β“˜ Chlorargyrite
Formula: AgCl
β“˜ 'Dunhamite'
Formula: PbTeO3(?)
Description: ccurs as rims on altaite and associated with rodalquilarite.
β“˜ Emmonsite
Formula: Fe3+2(TeO3)3 · 2H2O
β“˜ Fairbankite (TL)
Formula: Pb2+12(Te4+O3)11(SO4)
Type Locality:
Habit: Crystals less than 0.5 mm
Colour: Colorless
Description: Tiny, clear crystals in thin crusts plastered of walls of voids left by leaching of galena. Closely associated with oboyerite.
βœͺ Flaggite (TL)
Formula: Pb4Cu2+4Te6+2(SO4)2O11(OH)2(H2O)
Type Locality:
β“˜ Galena
Formula: PbS
β“˜ Galena var. Silver-bearing Galena
Formula: PbS with Ag
β“˜ 'Girdite'
Formula: H2Pb3(Te4+O3)(Te6+O6)
Description: Occurs as dense, chalky spherules to 3 mm diameter & some to 6 mm.
β“˜ Gold
Formula: Au
β“˜ Jarosite
Formula: KFe3+3(SO4)2(OH)6
β“˜ 'K Feldspar'
Description: Occurs as a component of quartz-adularia-opal rock formed by alteration of granodiorite.
β“˜ 'K Feldspar var. Adularia'
Formula: KAlSi3O8
Description: Occurs as a component of quartz-adularia-opal rock formed by alteration of granodiorite.
β“˜ Murphyite (TL)
Formula: Pb(Te6+O4)
Type Locality:
β“˜ 'Oboyerite' (FRL)
Type Locality:
Colour: Milk-white
Description: Occurs as spherules perched on clear, botryoidal opal (hyalite), in turn coating jarosite filling voids left in altered shale by removal of galena.
β“˜ Opal
Formula: SiO2 · nH2O
Description: Occurs as a component of quartz-adularia-opal rock formed by alteration of granodiorite.
β“˜ Opal var. Opal-AN
Formula: SiO2 · nH2O
Description: Occurs coating jarosite and hosting oboyerite spherules.
β“˜ Ottoite
Formula: Pb2TeO5
β“˜ Plumbotellurite
Formula: Pb(TeO3)
β“˜ Pyrite
Formula: FeS2
β“˜ Quartz
Formula: SiO2
Description: Occurs as a component of quartz-adularia-opal rock formed by alteration of granodiorite.
β“˜ Raspite
Formula: Pb(WO4)
β“˜ Rodalquilarite
Formula: Fe2(TeO2OH)3(TeO3)Cl
βœͺ Schieffelinite
Formula: Pb10Te6+6O20(OH)14(SO4)(H2O)5
β“˜ Silver
Formula: Ag
βœͺ Tombstoneite (TL)
Formula: (Ca0.5Pb0.5)Pb3Cu2+6Te6+2O6(Te4+O3)6(Se4+O3)2(SO4)2 · 3H2O
Type Locality:
βœͺ Winstanleyite (TL)
Formula: TiTe4+3O8
Type Locality:
Habit: simple cubes to 0.5 mm on an edge
Colour: Yellow, tan, cream-colored
Description: Occurs in a quartz-adularia-opal rock formed by alteration of granodiorite.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Silver1.AA.05Ag
β“˜Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
β“˜Galena2.CD.10PbS
β“˜var. Silver-bearing Galena2.CD.10PbS with Ag
β“˜Altaite2.CD.10PbTe
β“˜Pyrite2.EB.05aFeS2
Group 3 - Halides
β“˜Chlorargyrite3.AA.15AgCl
Group 4 - Oxides and Hydroxides
β“˜'Oboyerite' (TL)4..
β“˜Quartz4.DA.05SiO2
β“˜Opal4.DA.10SiO2 Β· nH2O
β“˜var. Opal-AN4.DA.10SiO2 Β· nH2O
β“˜Anatase4.DD.05TiO2
β“˜Raspite4.DG.20Pb(WO4)
β“˜Winstanleyite (TL)4.JK.05TiTe4+3O8
β“˜Fairbankite (TL)4.JK.50Pb2+12(Te4+O3)11(SO4)
β“˜Plumbotellurite4.JK.55Pb(TeO3)
β“˜Rodalquilarite4.JL.05Fe2(TeO2OH)3(TeO3)Cl
β“˜'Girdite'4.JL.30H2Pb3(Te4+O3)(Te6+O6)
β“˜Emmonsite4.JM.10Fe3+2(TeO3)3 Β· 2H2O
β“˜Tombstoneite (TL)4.JN.(Ca0.5Pb0.5)Pb3Cu2+6Te6+2O6(Te4+O3)6(Se4+O3)2(SO4)2 Β· 3H2O
Group 5 - Nitrates and Carbonates
β“˜Cerussite5.AB.15PbCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
β“˜Ottoite7.AB.25Pb2TeO5
β“˜Murphyite (TL)7.AD.Pb(Te6+O4)
β“˜Backite (TL)7.BC.Pb2AlTeO6Cl
β“˜Jarosite7.BC.10KFe3+3(SO4)2(OH)6
β“˜Schieffelinite7.CD.55Pb10Te6+6O20(OH)14(SO4)(H2O)5
β“˜Bairdite7.DF.Pb2Cu2+4Te6+2O10(OH)2(SO4) Β· H2O
β“˜Flaggite (TL)7.DF.Pb4Cu2+4Te6+2(SO4)2O11(OH)2(H2O)
Group 8 - Phosphates, Arsenates and Vanadates
β“˜Aldomarinoite ?8.BG.Sr2Mn3+(AsO4)2(OH)
Unclassified
β“˜'K Feldspar'-
β“˜'Dunhamite'-PbTeO3(?)
β“˜'K Feldspar
var. Adularia'
-KAlSi3O8

List of minerals for each chemical element

HHydrogen
Hβ“˜ EmmonsiteFe23+(TeO3)3 · 2H2O
Hβ“˜ GirditeH2Pb3(Te4+O3)(Te6+O6)
Hβ“˜ Opal var. Opal-ANSiO2 · nH2O
Hβ“˜ JarositeKFe33+(SO4)2(OH)6
Hβ“˜ OpalSiO2 · nH2O
Hβ“˜ RodalquilariteFe2(TeO2OH)3(TeO3)Cl
Hβ“˜ SchieffelinitePb10Te66+O20(OH)14(SO4)(H2O)5
Hβ“˜ BairditePb2Cu42+Te26+O10(OH)2(SO4) · H2O
Hβ“˜ FlaggitePb4Cu42+Te26+(SO4)2O11(OH)2(H2O)
Hβ“˜ Tombstoneite(Ca0.5Pb0.5)Pb3Cu62+Te26+O6(Te4+O3)6(Se4+O3)2(SO4)2 · 3H2O
Hβ“˜ AldomarinoiteSr2Mn3+(AsO4)2(OH)
CCarbon
Cβ“˜ CerussitePbCO3
OOxygen
Oβ“˜ K Feldspar var. AdulariaKAlSi3O8
Oβ“˜ AnataseTiO2
Oβ“˜ CerussitePbCO3
Oβ“˜ DunhamitePbTeO3(?)
Oβ“˜ EmmonsiteFe23+(TeO3)3 · 2H2O
Oβ“˜ FairbankitePb122+(Te4+O3)11(SO4)
Oβ“˜ GirditeH2Pb3(Te4+O3)(Te6+O6)
Oβ“˜ Opal var. Opal-ANSiO2 · nH2O
Oβ“˜ JarositeKFe33+(SO4)2(OH)6
Oβ“˜ OpalSiO2 · nH2O
Oβ“˜ PlumbotelluritePb(TeO3)
Oβ“˜ QuartzSiO2
Oβ“˜ RaspitePb(WO4)
Oβ“˜ RodalquilariteFe2(TeO2OH)3(TeO3)Cl
Oβ“˜ SchieffelinitePb10Te66+O20(OH)14(SO4)(H2O)5
Oβ“˜ WinstanleyiteTiTe34+O8
Oβ“˜ OttoitePb2TeO5
Oβ“˜ BairditePb2Cu42+Te26+O10(OH)2(SO4) · H2O
Oβ“˜ BackitePb2AlTeO6Cl
Oβ“˜ FlaggitePb4Cu42+Te26+(SO4)2O11(OH)2(H2O)
Oβ“˜ Tombstoneite(Ca0.5Pb0.5)Pb3Cu62+Te26+O6(Te4+O3)6(Se4+O3)2(SO4)2 · 3H2O
Oβ“˜ AldomarinoiteSr2Mn3+(AsO4)2(OH)
Oβ“˜ MurphyitePb(Te6+O4)
AlAluminium
Alβ“˜ K Feldspar var. AdulariaKAlSi3O8
Alβ“˜ BackitePb2AlTeO6Cl
SiSilicon
Siβ“˜ K Feldspar var. AdulariaKAlSi3O8
Siβ“˜ Opal var. Opal-ANSiO2 · nH2O
Siβ“˜ OpalSiO2 · nH2O
Siβ“˜ QuartzSiO2
SSulfur
Sβ“˜ FairbankitePb122+(Te4+O3)11(SO4)
Sβ“˜ GalenaPbS
Sβ“˜ JarositeKFe33+(SO4)2(OH)6
Sβ“˜ PyriteFeS2
Sβ“˜ SchieffelinitePb10Te66+O20(OH)14(SO4)(H2O)5
Sβ“˜ Galena var. Silver-bearing GalenaPbS with Ag
Sβ“˜ BairditePb2Cu42+Te26+O10(OH)2(SO4) · H2O
Sβ“˜ FlaggitePb4Cu42+Te26+(SO4)2O11(OH)2(H2O)
Sβ“˜ Tombstoneite(Ca0.5Pb0.5)Pb3Cu62+Te26+O6(Te4+O3)6(Se4+O3)2(SO4)2 · 3H2O
ClChlorine
Clβ“˜ ChlorargyriteAgCl
Clβ“˜ RodalquilariteFe2(TeO2OH)3(TeO3)Cl
Clβ“˜ BackitePb2AlTeO6Cl
KPotassium
Kβ“˜ K Feldspar var. AdulariaKAlSi3O8
Kβ“˜ JarositeKFe33+(SO4)2(OH)6
CaCalcium
Caβ“˜ Tombstoneite(Ca0.5Pb0.5)Pb3Cu62+Te26+O6(Te4+O3)6(Se4+O3)2(SO4)2 · 3H2O
TiTitanium
Tiβ“˜ AnataseTiO2
Tiβ“˜ WinstanleyiteTiTe34+O8
MnManganese
Mnβ“˜ AldomarinoiteSr2Mn3+(AsO4)2(OH)
FeIron
Feβ“˜ EmmonsiteFe23+(TeO3)3 · 2H2O
Feβ“˜ JarositeKFe33+(SO4)2(OH)6
Feβ“˜ PyriteFeS2
Feβ“˜ RodalquilariteFe2(TeO2OH)3(TeO3)Cl
CuCopper
Cuβ“˜ BairditePb2Cu42+Te26+O10(OH)2(SO4) · H2O
Cuβ“˜ FlaggitePb4Cu42+Te26+(SO4)2O11(OH)2(H2O)
Cuβ“˜ Tombstoneite(Ca0.5Pb0.5)Pb3Cu62+Te26+O6(Te4+O3)6(Se4+O3)2(SO4)2 · 3H2O
AsArsenic
Asβ“˜ AldomarinoiteSr2Mn3+(AsO4)2(OH)
SeSelenium
Seβ“˜ Tombstoneite(Ca0.5Pb0.5)Pb3Cu62+Te26+O6(Te4+O3)6(Se4+O3)2(SO4)2 · 3H2O
SrStrontium
Srβ“˜ AldomarinoiteSr2Mn3+(AsO4)2(OH)
AgSilver
Agβ“˜ ChlorargyriteAgCl
Agβ“˜ SilverAg
Agβ“˜ Galena var. Silver-bearing GalenaPbS with Ag
TeTellurium
Teβ“˜ AltaitePbTe
Teβ“˜ DunhamitePbTeO3(?)
Teβ“˜ EmmonsiteFe23+(TeO3)3 · 2H2O
Teβ“˜ FairbankitePb122+(Te4+O3)11(SO4)
Teβ“˜ GirditeH2Pb3(Te4+O3)(Te6+O6)
Teβ“˜ PlumbotelluritePb(TeO3)
Teβ“˜ RodalquilariteFe2(TeO2OH)3(TeO3)Cl
Teβ“˜ SchieffelinitePb10Te66+O20(OH)14(SO4)(H2O)5
Teβ“˜ WinstanleyiteTiTe34+O8
Teβ“˜ OttoitePb2TeO5
Teβ“˜ BairditePb2Cu42+Te26+O10(OH)2(SO4) · H2O
Teβ“˜ BackitePb2AlTeO6Cl
Teβ“˜ FlaggitePb4Cu42+Te26+(SO4)2O11(OH)2(H2O)
Teβ“˜ Tombstoneite(Ca0.5Pb0.5)Pb3Cu62+Te26+O6(Te4+O3)6(Se4+O3)2(SO4)2 · 3H2O
Teβ“˜ MurphyitePb(Te6+O4)
WTungsten
Wβ“˜ RaspitePb(WO4)
AuGold
Auβ“˜ GoldAu
PbLead
Pbβ“˜ AltaitePbTe
Pbβ“˜ CerussitePbCO3
Pbβ“˜ DunhamitePbTeO3(?)
Pbβ“˜ FairbankitePb122+(Te4+O3)11(SO4)
Pbβ“˜ GalenaPbS
Pbβ“˜ GirditeH2Pb3(Te4+O3)(Te6+O6)
Pbβ“˜ PlumbotelluritePb(TeO3)
Pbβ“˜ RaspitePb(WO4)
Pbβ“˜ SchieffelinitePb10Te66+O20(OH)14(SO4)(H2O)5
Pbβ“˜ Galena var. Silver-bearing GalenaPbS with Ag
Pbβ“˜ OttoitePb2TeO5
Pbβ“˜ BairditePb2Cu42+Te26+O10(OH)2(SO4) · H2O
Pbβ“˜ BackitePb2AlTeO6Cl
Pbβ“˜ FlaggitePb4Cu42+Te26+(SO4)2O11(OH)2(H2O)
Pbβ“˜ Tombstoneite(Ca0.5Pb0.5)Pb3Cu62+Te26+O6(Te4+O3)6(Se4+O3)2(SO4)2 · 3H2O
Pbβ“˜ MurphyitePb(Te6+O4)

Other Databases

Link to USGS MRDS:10039606

Other Regions, Features and Areas containing this locality

Mexico
North America
North America PlateTectonic Plate
USA

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References

 
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