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Silver Bell Mine, Mineral Mountain, Silver Bell Mining District, Silver Bell Mountains, Pima County, Arizona, USAi
Regional Level Types
Silver Bell MineMine
Mineral MountainMountain
Silver Bell Mining DistrictMining District
Silver Bell MountainsMountain Range
Pima CountyCounty
ArizonaState
USACountry

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Latitude & Longitude (WGS84):
32° 24' North , 111° 30' West
Latitude & Longitude (decimal):
32.40000,-111.50000
GeoHash:
G#: 9tb8qf0pt
GRN:
N22W68
Type:
Mine
KΓΆppen climate type:
BSh : Hot semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Avra Valley6,050 (2011)17.8km
Nelson259 (2011)21.9km
Picture Rocks9,563 (2011)24.6km
Red Rock169 (2011)25.5km
Marana41,315 (2017)26.1km
Mindat Locality ID:
3374
Long-form identifier:
mindat:1:2:3374:2
GUID (UUID V4):
f5fde9a3-eb19-4b64-87c5-535b8668db6a


A Cu-Ag-Mo-Au occurrence/mine located in the NWΒΌ sec. 4 & the center of sec. 11, T12S, R8E, G&SRM, on private (patented) land. Discovered 1909. First produced 1954. Owned & operated by ASARCO (American Smelting and Refining Company (100%), New York (1954-1972). Operated by a joint venture with Mitsui and Company, Ltd. (100%), New York (1954-1972). Owned by ASARCO Incorporated (Grupo Mexico is 100% owner), Tucson, Arizona (1999-2010). Owned by the American Smelting & Refining Company (ASARCO). This mine is the open pit continuance of the former El Tiro and Oxide underground mines. The USGS MRDS database stated accuracy for this locality is 1,000 meters.

Mineralization is a polymetallic deposit hosted in quartz monzonite, with supergene enriched deposits of chalcocite with minor copper carbonates and silicates derived from sheeted, closely spaced, veinlets and seams of quartz, pyrite, chalcopyrite, and minor molybdenite in hydrothermally altered Laramide dacite porphyry and monzonite. The ore body is 90 meters thick, 1,260 meters wide and 1,260 meters long with a depth-to-top of 60 meters over an area of 840 HA. Ore body No. 1 is massive stockwork. Ore body No.2 is disseminated. The primary mode of origin was hydrothermal activity. The secondary mode of origin was oxidation. Primary ore control was fracturing and the secondary control was igneous activity. Wallroack alteration is moderate (sericitic, silicification & advanced argillic). Local rocks include Early Tertiary to Late Cretaceous volcanic rocks.

Workings include surface openings comprised of two open pit operations since 1954. Up through 1972, production has been some 59,800,000 million tons of ore averaging about 0.8% Cu, 0.06 ounce Ag/ton, 0.004% Mo, and minor Au & Pb.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

52 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

β“˜ Actinolite
Formula: ◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
β“˜ Allophane
Formula: (Al2O3)(SiO2)1.3-2 · 2.5-3H2O
β“˜ Alunite
Formula: KAl3(SO4)2(OH)6
Description: Occurs in veins.
β“˜ Aragonite
Formula: CaCO3
β“˜ Aurichalcite
Formula: (Zn,Cu)5(CO3)2(OH)6
β“˜ Azurite
Formula: Cu3(CO3)2(OH)2
Description: In orebodies in limestone.
β“˜ Baryte
Formula: BaSO4
β“˜ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜ Brochantite
Formula: Cu4(SO4)(OH)6
Habit: Micro crystals
β“˜ Cacoxenite
Formula: Fe3+24AlO6(PO4)17(OH)12 · 75H2O
Description: Occurs coating torbernite with turquoise.
β“˜ Calcite
Formula: CaCO3
β“˜ Caledonite
Formula: Pb5Cu2(SO4)3(CO3)(OH)6
β“˜ Cerussite
Formula: PbCO3
Description: As silky crystals & as earthy mixtures with smithsonite.
β“˜ Chalcanthite
Formula: CuSO4 · 5H2O
β“˜ Chalcocite
Formula: Cu2S
Description: A product of secondary enrichment.
β“˜ Chalcopyrite
Formula: CuFeS2
β“˜ Chlorargyrite
Formula: AgCl
β“˜ 'Chlorite Group'
β“˜ Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Colour: Emerald-green
Description: Clear, emerald-green material.
β“˜ Copper
Formula: Cu
β“˜ Cuprite
Formula: Cu2O
β“˜ Diopside
Formula: CaMgSi2O6
β“˜ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
β“˜ Epsomite
Formula: MgSO4 · 7H2O
Habit: Capillary, acicualr
β“˜ 'Feldspar Group'
β“˜ Fluorite
Formula: CaF2
β“˜ Galena
Formula: PbS
β“˜ 'Garnet Group'
Formula: X3Z2(SiO4)3
β“˜ Goethite
Formula: Ξ±-Fe3+O(OH)
β“˜ Gypsum
Formula: CaSO4 · 2H2O
β“˜ Hematite
Formula: Fe2O3
β“˜ Hydrohalloysite
Formula: Al2Si2O5(OH)4 · 2H2O
β“˜ Jarosite
Formula: KFe3+3(SO4)2(OH)6
Description: Occurs in veins.
β“˜ Kaolinite
Formula: Al2(Si2O5)(OH)4
Description: Occurs as large masses in wall rocks in upper levels.
β“˜ Leucosphenite
Formula: BaNa4Ti2B2Si10O30
Habit: Micro-crystals
β“˜ Libethenite
Formula: Cu2(PO4)(OH)
β“˜ 'Limonite'
β“˜ Lizardite
Formula: Mg3(Si2O5)(OH)4
β“˜ Malachite
Formula: Cu2(CO3)(OH)2
Description: In limestone replacements.
β“˜ Melanterite
Formula: Fe2+(H2O)6SO4 · H2O
Description: Occurs in small amounts.
β“˜ Melanterite var. Copper-bearing Melanterite
Formula: (Fe,Cu)SO4 · 7H2O
Description: Occurs in small amounts.
β“˜ Metatorbernite
Formula: Cu(UO2)2(PO4)2 · 8H2O
Habit: Micro-crystals
β“˜ Molybdenite
Formula: MoS2
β“˜ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
β“˜ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
β“˜ Opal
Formula: SiO2 · nH2O
Description: Veinlets in the oxidized zone with jarosite.
β“˜ Phlogopite
Formula: KMg3(AlSi3O10)(OH)2
β“˜ Pseudomalachite
Formula: Cu5(PO4)2(OH)4
Habit: Micro-crystals
β“˜ Pyrite
Formula: FeS2
β“˜ Quartz
Formula: SiO2
Colour: Emerald-green
Description: Occurs as clear, nearly transparent material of beautiful color.
β“˜ Quartz var. Chalcedony
Formula: SiO2
Colour: Emerald-green
Description: Occurs as clear, nearly transparent material of beautiful color.
β“˜ Rosasite
Formula: (Cu,Zn)2(CO3)(OH)2
β“˜ Smithsonite
Formula: ZnCO3
β“˜ Sphalerite
Formula: ZnS
β“˜ Tenorite
Formula: CuO
β“˜ Torbernite
Formula: Cu(UO2)2(PO4)2 · 12H2O
Habit: Tabular, euhedral crystals to 1 cm diameter
Colour: Emerald-green
Description: Occurs coated by cacoxenite & turquoise.
β“˜ Tremolite
Formula: ◻Ca2Mg5(Si8O22)(OH)2
β“˜ Turquoise
Formula: CuAl6(PO4)4(OH)8 · 4H2O
Description: Occurs as a coating with cacoxenite on torbernite.
β“˜ Wollastonite
Formula: Ca3(Si3O9)
β“˜ Wulfenite
Formula: Pb(MoO4)

Gallery:

(Al2O3)(SiO2)1.3-2 · 2.5-3H2Oβ“˜ Allophane
Cu3(CO3)2(OH)2β“˜ Azurite
Cu4(SO4)(OH)6β“˜ Brochantite
CaCO3β“˜ Calcite
CuFeS2β“˜ Chalcopyrite
Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1β“˜ Chrysocolla
CaF2β“˜ Fluorite
PbSβ“˜ Galena
CaSO4 · 2H2Oβ“˜ Gypsum
Cu2(PO4)(OH)β“˜ Libethenite
Cu2(CO3)(OH)2β“˜ Malachite
Cu(UO2)2(PO4)2 · 8H2Oβ“˜ Metatorbernite
MoS2β“˜ Molybdenite
Cu5(PO4)2(OH)4β“˜ Pseudomalachite
SiO2β“˜ Quartz
Pb(MoO4)β“˜ Wulfenite

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Copper1.AA.05Cu
Group 2 - Sulphides and Sulfosalts
β“˜Chalcocite2.BA.05Cu2S
β“˜Sphalerite2.CB.05aZnS
β“˜Chalcopyrite2.CB.10aCuFeS2
β“˜Galena2.CD.10PbS
β“˜Molybdenite2.EA.30MoS2
β“˜Pyrite2.EB.05aFeS2
Group 3 - Halides
β“˜Chlorargyrite3.AA.15AgCl
β“˜Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
β“˜Goethite4.00.Ξ±-Fe3+O(OH)
β“˜Cuprite4.AA.10Cu2O
β“˜Tenorite4.AB.10CuO
β“˜Hematite4.CB.05Fe2O3
β“˜Quartz4.DA.05SiO2
β“˜var. Chalcedony4.DA.05SiO2
β“˜Opal4.DA.10SiO2 Β· nH2O
Group 5 - Nitrates and Carbonates
β“˜Calcite5.AB.05CaCO3
β“˜Smithsonite5.AB.05ZnCO3
β“˜Cerussite5.AB.15PbCO3
β“˜Aragonite5.AB.15CaCO3
β“˜Azurite5.BA.05Cu3(CO3)2(OH)2
β“˜Rosasite5.BA.10(Cu,Zn)2(CO3)(OH)2
β“˜Malachite5.BA.10Cu2(CO3)(OH)2
β“˜Aurichalcite5.BA.15(Zn,Cu)5(CO3)2(OH)6
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
β“˜Baryte7.AD.35BaSO4
β“˜Brochantite7.BB.25Cu4(SO4)(OH)6
β“˜Jarosite7.BC.10KFe3+3(SO4)2(OH)6
β“˜Alunite7.BC.10KAl3(SO4)2(OH)6
β“˜Caledonite7.BC.50Pb5Cu2(SO4)3(CO3)(OH)6
β“˜Chalcanthite7.CB.20CuSO4 Β· 5H2O
β“˜Melanterite7.CB.35Fe2+(H2O)6SO4 Β· H2O
β“˜var. Copper-bearing Melanterite7.CB.35(Fe,Cu)SO4 Β· 7H2O
β“˜Epsomite7.CB.40MgSO4 Β· 7H2O
β“˜Gypsum7.CD.40CaSO4 Β· 2H2O
β“˜Wulfenite7.GA.05Pb(MoO4)
Group 8 - Phosphates, Arsenates and Vanadates
β“˜Libethenite8.BB.30Cu2(PO4)(OH)
β“˜Pseudomalachite8.BD.05Cu5(PO4)2(OH)4
β“˜Cacoxenite8.DC.40Fe3+24AlO6(PO4)17(OH)12 Β· 75H2O
β“˜Turquoise8.DD.15CuAl6(PO4)4(OH)8 Β· 4H2O
β“˜Torbernite8.EB.05Cu(UO2)2(PO4)2 Β· 12H2O
β“˜Metatorbernite8.EB.10Cu(UO2)2(PO4)2 Β· 8H2O
Group 9 - Silicates
β“˜Epidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
β“˜Diopside9.DA.15CaMgSi2O6
β“˜Tremolite9.DE.10β—»Ca2Mg5(Si8O22)(OH)2
β“˜Actinolite9.DE.10β—»Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
β“˜Wollastonite9.DG.05Ca3(Si3O9)
β“˜Leucosphenite9.DP.15BaNa4Ti2B2Si10O30
β“˜Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
β“˜var. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
β“˜Phlogopite9.EC.20KMg3(AlSi3O10)(OH)2
β“˜Kaolinite9.ED.05Al2(Si2O5)(OH)4
β“˜Hydrohalloysite9.ED.10Al2Si2O5(OH)4 Β· 2H2O
β“˜Lizardite9.ED.15Mg3(Si2O5)(OH)4
β“˜Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 Β· nH2O, x < 1
β“˜Allophane9.ED.20(Al2O3)(SiO2)1.3-2 Β· 2.5-3H2O
Unclassified
β“˜'Chlorite Group'-
β“˜'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
β“˜'Feldspar Group'-
β“˜'Limonite'-
β“˜'Garnet Group'-X3Z2(SiO4)3

List of minerals for each chemical element

HHydrogen
Hβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Hβ“˜ Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Hβ“˜ AluniteKAl3(SO4)2(OH)6
Hβ“˜ Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Hβ“˜ AzuriteCu3(CO3)2(OH)2
Hβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hβ“˜ BrochantiteCu4(SO4)(OH)6
Hβ“˜ CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
Hβ“˜ CaledonitePb5Cu2(SO4)3(CO3)(OH)6
Hβ“˜ ChalcanthiteCuSO4 · 5H2O
Hβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Hβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hβ“˜ EpsomiteMgSO4 · 7H2O
Hβ“˜ GoethiteΞ±-Fe3+O(OH)
Hβ“˜ GypsumCaSO4 · 2H2O
Hβ“˜ JarositeKFe33+(SO4)2(OH)6
Hβ“˜ KaoliniteAl2(Si2O5)(OH)4
Hβ“˜ LibetheniteCu2(PO4)(OH)
Hβ“˜ LizarditeMg3(Si2O5)(OH)4
Hβ“˜ MalachiteCu2(CO3)(OH)2
Hβ“˜ MelanteriteFe2+(H2O)6SO4 · H2O
Hβ“˜ MetatorberniteCu(UO2)2(PO4)2 · 8H2O
Hβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Hβ“˜ OpalSiO2 · nH2O
Hβ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
Hβ“˜ PseudomalachiteCu5(PO4)2(OH)4
Hβ“˜ Rosasite(Cu,Zn)2(CO3)(OH)2
Hβ“˜ TorberniteCu(UO2)2(PO4)2 · 12H2O
Hβ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Hβ“˜ TurquoiseCuAl6(PO4)4(OH)8 · 4H2O
Hβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Hβ“˜ HydrohalloysiteAl2Si2O5(OH)4 · 2H2O
Hβ“˜ Melanterite var. Copper-bearing Melanterite(Fe,Cu)SO4 · 7H2O
BBoron
Bβ“˜ LeucospheniteBaNa4Ti2B2Si10O30
CCarbon
Cβ“˜ AragoniteCaCO3
Cβ“˜ Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Cβ“˜ AzuriteCu3(CO3)2(OH)2
Cβ“˜ CalciteCaCO3
Cβ“˜ CaledonitePb5Cu2(SO4)3(CO3)(OH)6
Cβ“˜ CerussitePbCO3
Cβ“˜ MalachiteCu2(CO3)(OH)2
Cβ“˜ Rosasite(Cu,Zn)2(CO3)(OH)2
Cβ“˜ SmithsoniteZnCO3
OOxygen
Oβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Oβ“˜ Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Oβ“˜ AluniteKAl3(SO4)2(OH)6
Oβ“˜ AragoniteCaCO3
Oβ“˜ Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Oβ“˜ AzuriteCu3(CO3)2(OH)2
Oβ“˜ BaryteBaSO4
Oβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oβ“˜ BrochantiteCu4(SO4)(OH)6
Oβ“˜ CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
Oβ“˜ CalciteCaCO3
Oβ“˜ CaledonitePb5Cu2(SO4)3(CO3)(OH)6
Oβ“˜ CerussitePbCO3
Oβ“˜ ChalcanthiteCuSO4 · 5H2O
Oβ“˜ Quartz var. ChalcedonySiO2
Oβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Oβ“˜ CupriteCu2O
Oβ“˜ DiopsideCaMgSi2O6
Oβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oβ“˜ EpsomiteMgSO4 · 7H2O
Oβ“˜ GoethiteΞ±-Fe3+O(OH)
Oβ“˜ GypsumCaSO4 · 2H2O
Oβ“˜ HematiteFe2O3
Oβ“˜ JarositeKFe33+(SO4)2(OH)6
Oβ“˜ KaoliniteAl2(Si2O5)(OH)4
Oβ“˜ LeucospheniteBaNa4Ti2B2Si10O30
Oβ“˜ LibetheniteCu2(PO4)(OH)
Oβ“˜ LizarditeMg3(Si2O5)(OH)4
Oβ“˜ MalachiteCu2(CO3)(OH)2
Oβ“˜ MelanteriteFe2+(H2O)6SO4 · H2O
Oβ“˜ MetatorberniteCu(UO2)2(PO4)2 · 8H2O
Oβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Oβ“˜ OpalSiO2 · nH2O
Oβ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
Oβ“˜ PseudomalachiteCu5(PO4)2(OH)4
Oβ“˜ QuartzSiO2
Oβ“˜ Rosasite(Cu,Zn)2(CO3)(OH)2
Oβ“˜ SmithsoniteZnCO3
Oβ“˜ TenoriteCuO
Oβ“˜ TorberniteCu(UO2)2(PO4)2 · 12H2O
Oβ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Oβ“˜ TurquoiseCuAl6(PO4)4(OH)8 · 4H2O
Oβ“˜ WulfenitePb(MoO4)
Oβ“˜ WollastoniteCa3(Si3O9)
Oβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Oβ“˜ Garnet GroupX3Z2(SiO4)3
Oβ“˜ HydrohalloysiteAl2Si2O5(OH)4 · 2H2O
Oβ“˜ Melanterite var. Copper-bearing Melanterite(Fe,Cu)SO4 · 7H2O
FFluorine
Fβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fβ“˜ FluoriteCaF2
NaSodium
Naβ“˜ LeucospheniteBaNa4Ti2B2Si10O30
MgMagnesium
Mgβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Mgβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgβ“˜ DiopsideCaMgSi2O6
Mgβ“˜ EpsomiteMgSO4 · 7H2O
Mgβ“˜ LizarditeMg3(Si2O5)(OH)4
Mgβ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
Mgβ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
AlAluminium
Alβ“˜ Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Alβ“˜ AluniteKAl3(SO4)2(OH)6
Alβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alβ“˜ CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
Alβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Alβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alβ“˜ KaoliniteAl2(Si2O5)(OH)4
Alβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Alβ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
Alβ“˜ TurquoiseCuAl6(PO4)4(OH)8 · 4H2O
Alβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Alβ“˜ HydrohalloysiteAl2Si2O5(OH)4 · 2H2O
SiSilicon
Siβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Siβ“˜ Allophane(Al2O3)(SiO2)1.3-2 · 2.5-3H2O
Siβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siβ“˜ Quartz var. ChalcedonySiO2
Siβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Siβ“˜ DiopsideCaMgSi2O6
Siβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siβ“˜ KaoliniteAl2(Si2O5)(OH)4
Siβ“˜ LeucospheniteBaNa4Ti2B2Si10O30
Siβ“˜ LizarditeMg3(Si2O5)(OH)4
Siβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Siβ“˜ OpalSiO2 · nH2O
Siβ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
Siβ“˜ QuartzSiO2
Siβ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Siβ“˜ WollastoniteCa3(Si3O9)
Siβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Siβ“˜ Garnet GroupX3Z2(SiO4)3
Siβ“˜ HydrohalloysiteAl2Si2O5(OH)4 · 2H2O
PPhosphorus
Pβ“˜ CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
Pβ“˜ LibetheniteCu2(PO4)(OH)
Pβ“˜ MetatorberniteCu(UO2)2(PO4)2 · 8H2O
Pβ“˜ PseudomalachiteCu5(PO4)2(OH)4
Pβ“˜ TorberniteCu(UO2)2(PO4)2 · 12H2O
Pβ“˜ TurquoiseCuAl6(PO4)4(OH)8 · 4H2O
SSulfur
Sβ“˜ AluniteKAl3(SO4)2(OH)6
Sβ“˜ BaryteBaSO4
Sβ“˜ BrochantiteCu4(SO4)(OH)6
Sβ“˜ CaledonitePb5Cu2(SO4)3(CO3)(OH)6
Sβ“˜ ChalcopyriteCuFeS2
Sβ“˜ ChalcanthiteCuSO4 · 5H2O
Sβ“˜ ChalcociteCu2S
Sβ“˜ EpsomiteMgSO4 · 7H2O
Sβ“˜ GalenaPbS
Sβ“˜ GypsumCaSO4 · 2H2O
Sβ“˜ JarositeKFe33+(SO4)2(OH)6
Sβ“˜ MelanteriteFe2+(H2O)6SO4 · H2O
Sβ“˜ MolybdeniteMoS2
Sβ“˜ PyriteFeS2
Sβ“˜ SphaleriteZnS
Sβ“˜ Melanterite var. Copper-bearing Melanterite(Fe,Cu)SO4 · 7H2O
ClChlorine
Clβ“˜ ChlorargyriteAgCl
KPotassium
Kβ“˜ AluniteKAl3(SO4)2(OH)6
Kβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kβ“˜ JarositeKFe33+(SO4)2(OH)6
Kβ“˜ MuscoviteKAl2(AlSi3O10)(OH)2
Kβ“˜ PhlogopiteKMg3(AlSi3O10)(OH)2
Kβ“˜ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Caβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Caβ“˜ AragoniteCaCO3
Caβ“˜ CalciteCaCO3
Caβ“˜ DiopsideCaMgSi2O6
Caβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caβ“˜ FluoriteCaF2
Caβ“˜ GypsumCaSO4 · 2H2O
Caβ“˜ Tremolite◻Ca2Mg5(Si8O22)(OH)2
Caβ“˜ WollastoniteCa3(Si3O9)
TiTitanium
Tiβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiβ“˜ LeucospheniteBaNa4Ti2B2Si10O30
FeIron
Feβ“˜ Actinolite◻Ca2(Mg4.5-2.5Fe0.5-2.5)Si8O22(OH)2
Feβ“˜ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feβ“˜ CacoxeniteFe243+AlO6(PO4)17(OH)12 · 75H2O
Feβ“˜ ChalcopyriteCuFeS2
Feβ“˜ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feβ“˜ GoethiteΞ±-Fe3+O(OH)
Feβ“˜ HematiteFe2O3
Feβ“˜ JarositeKFe33+(SO4)2(OH)6
Feβ“˜ MelanteriteFe2+(H2O)6SO4 · H2O
Feβ“˜ PyriteFeS2
Feβ“˜ Melanterite var. Copper-bearing Melanterite(Fe,Cu)SO4 · 7H2O
CuCopper
Cuβ“˜ Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Cuβ“˜ AzuriteCu3(CO3)2(OH)2
Cuβ“˜ BrochantiteCu4(SO4)(OH)6
Cuβ“˜ CaledonitePb5Cu2(SO4)3(CO3)(OH)6
Cuβ“˜ ChalcopyriteCuFeS2
Cuβ“˜ ChalcanthiteCuSO4 · 5H2O
Cuβ“˜ ChalcociteCu2S
Cuβ“˜ ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Cuβ“˜ CupriteCu2O
Cuβ“˜ CopperCu
Cuβ“˜ LibetheniteCu2(PO4)(OH)
Cuβ“˜ MalachiteCu2(CO3)(OH)2
Cuβ“˜ MetatorberniteCu(UO2)2(PO4)2 · 8H2O
Cuβ“˜ PseudomalachiteCu5(PO4)2(OH)4
Cuβ“˜ Rosasite(Cu,Zn)2(CO3)(OH)2
Cuβ“˜ TenoriteCuO
Cuβ“˜ TorberniteCu(UO2)2(PO4)2 · 12H2O
Cuβ“˜ TurquoiseCuAl6(PO4)4(OH)8 · 4H2O
Cuβ“˜ Melanterite var. Copper-bearing Melanterite(Fe,Cu)SO4 · 7H2O
ZnZinc
Znβ“˜ Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Znβ“˜ Rosasite(Cu,Zn)2(CO3)(OH)2
Znβ“˜ SmithsoniteZnCO3
Znβ“˜ SphaleriteZnS
MoMolybdenum
Moβ“˜ MolybdeniteMoS2
Moβ“˜ WulfenitePb(MoO4)
AgSilver
Agβ“˜ ChlorargyriteAgCl
BaBarium
Baβ“˜ BaryteBaSO4
Baβ“˜ LeucospheniteBaNa4Ti2B2Si10O30
PbLead
Pbβ“˜ CaledonitePb5Cu2(SO4)3(CO3)(OH)6
Pbβ“˜ CerussitePbCO3
Pbβ“˜ GalenaPbS
Pbβ“˜ WulfenitePb(MoO4)
UUranium
Uβ“˜ MetatorberniteCu(UO2)2(PO4)2 · 8H2O
Uβ“˜ TorberniteCu(UO2)2(PO4)2 · 12H2O

Geochronology

Mineralization age: Paleocene : 63.5 Ma to 62.9 Ma

Important note: This table is based only on rock and mineral ages recorded on mindat.org for this locality and is not necessarily a complete representation of the geochronology, but does give an indication of possible mineralization events relevant to this locality. As more age information is added this table may expand in the future. A break in the table simply indicates a lack of data entered here, not necessarily a break in the geologic sequence. Grey background entries are from different, related, localities.

Geologic TimeRocks, Minerals and Events
Phanerozoic
 Cenozoic
  Paleogene
   Paleocene
β“˜ Molybdenite (youngest age)62.9 Ma
β“˜ Molybdenite (oldest age)63.5 Ma

Other Databases

Link to USGS MRDS:10161929

Localities in this Region

USA
  • Arizona
    • Pima County

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

USGS MRDS ID #D000333.
USGS Vaca Hills, Arizona, quadrangle 15 minute topo map.
[http://www.asarco.com/silverbell.html
(n.d.)
Engineering Mining Journal (1904), The Silverbell Camp, Arizona: 77: 639.
Stewart, C.A. (1912) The geology and ore deposits of the Silverbell mining district, Arizona, A.I.M.E. Bulletin 65: 455-505 (A.I.M.E. Transactions, Vol. 43: 240-290).
Galbraith, F. W. (1947) Minerals of Arizona (Second Edition, Revised) University of Arizona Bulletin 153. Arizona Bureau of Mines
Kerr, P.F. (1951), Alteration features at Silverbell, Arizona, Geological Society of America Bulletin: 62: 451-480.
Huttl, John B. (1954) Silver Bell ASARCO’s New Arizona Copper project starts production, Engineering & Mining Journal: 155(7): 72-79.
Richard, K.E. & J.H. Courtright (1954), Structure & Mineralization at Silver Bell, Arizona, Mining Engineering, Vol. 6(11): 1095-1099 (A.I.M.E. Transactions, 1954 - Vol. 199 (1955).
Mining World (1958) Silver Bell - ASARCO Makes a Mine at a Known Deposit: April, 1958: 40-45.
Galbraith, F.W. & D.J. Brennan (1959), Minerals of Arizona: 87.
Hardwick, W.R. (1963) Open-pit copper mining and concentrating methods and costs, Silver Bell unit, American Smelting and Refining Company, Pima County, Arizona: U.S. Bureau of Mines Information Circular I.C. 8153, 72 pages.
Kenyon, Richard, Courtright, James H. (1966) Structure and Mineralization at Silver Bell, Arizona. In Geology of the Porphyry Copper Deposits. The University of Arizona Press, Tucson, AZ. p.157-164.
Sheffer, H. & Evans, L. (1968), Copper leaching practices in the Western United States, U.S. Bureau of Mines Information Circular IC-8341: 24.
Watson, Barry N. (1968) Updating the Geology and Structural Ore Controls at Silver Bell, Arizona, presented at the Arizona A.I.M.E. Spring Meeting, Mining Geology Division, May 20, 1968, 11 pages.
Skillings, David N., Jr. (1970) ASARCO’s Silver Bell Unit, Skillings Mining Review, July 25, 1970: 3-5.
Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bulletin 189, Index of Mining Properties in Pima County, Arizona: 143 (Table 4).
American Smelting and Refining Company (ASARCO), Incorporated (1976), S.E.C. Form 10-K, 1976: A3-A5.
World Mining (1977), September, 1977: 174
American Smelting and Refining Company (ASARCO), Incorporated (1977), S.E.C. Form 10-K, 1977.
Roe, A. (1980), Micromounting in Arizona, Mineralogical Record: 11: 261-265.
Graybeal, F.T. (1982) Geology of the El Tiro area, Silver Bell mining district, Pima County, Arizona, in Titley, S.R., editor, Advances in geology of the porphyry copper deposits, southwestern North America: Tucson, University of Arizona Press: 487-505.
Titley, Spencer R. (1982) Some Features of tectonic History and Ore Genesis in the Pima Mining District; in: Advances in Geology of the Porphyry Copper Deposits – Southwestern North America, University of Arizona Press: 167.
American Smelting and Refining Company (ASARCO), Incorporated (1986), Annual Report: 11.
American Smelting and Refining Company (ASARCO), Incorporated (1986), Annual Report: 11. (Silver Bell Mine)
Engineering and Mining Journal (1990), 9-90: 111.
Mining Engineering (1990), 9/90: 1052.
Mining Record (1990), 9/5/90: 20.
Southwestern Pay Dirt (1990), August, 1990: 6a, (Silver Bell Mine)
The Northern Miner (1991), 11/11/91: 17.
Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineral Resources Open File Report 92-10: 13 (Table 1).
Southwestern Pay Dirt (1992), April, 1992: 12a, (Silver Bell Mine)
American Smelting and Refining Company (ASARCO), Incorporated (1993), Annual Report: 5.
American Smelting and Refining Company (ASARCO), Incorporated (1993), Annual Report: 5. (Silver Bell Mine)
American Smelting and Refining Company (ASARCO), Incorporated (1993), Form 10-K: A15.
Southwestern Pay Dirt (1994), 7-94: 2a.
American Smelting and Refining Company (ASARCO), Incorporated (1994), Form 10-K: A18.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. edition: 107, 118, 126, 128, 193, 213, 262, 276, 277, 286, 296.
Long, K.R. (1995), Production and reserves of Cordilleran (Alaska to Chile) porphyry copper deposits; in Pierce, F.W. and Bolm, J.G., editors, Porphyry Copper Deposits of the American Cordillera, Arizona Geological Society Digest 20: 35-68.
Lopez, J.A., Titley, S.R. (1995), Outcrop and capping characteristics of the supergene sulfide enrichment at North Silver Bell, Pima County, Arizona: in Pierce, F.W., Bolm, J.G. (editors), Porphyry Copper Deposits of the American Cordillera Arizona Geological Society Digest 20: 424-435.
U.S. Bureau of Mines (1995), Minerals Availability System/Mineral Industry Location System (MAS/MILS), U.S. Bureau of Mines, file ID #0040190009.
American Smelting and Refining Company (ASARCO), Incorporated (1995), Annual Report: 7.
Schiffer, Craig (1996), American Metal Market: 104(28) (2-8-96): 1.
Mining Record (1997): 108(9) (February 26, 1997): 14.
Kendrick, M.A., Burgess, R., Pattrick, R.A.D. and Turner, G. (2001), Halogen and Ar-Ar age determinations of inclusions within quartz veins from porphyry copper deposits using complementary noble gas extraction techniques; Chemical Geology: 177: 351-370.
Browne, Q. J. and Miller, M. A. (2002), Use of geologic parameters for development of low-grade copper reserves, Silver Bell Mine, Arizona; In Society of Mining Engineers Annual Meeting and Exhibit, 2002, Technical Program, Society of Mining Engineers: 68.
Barra, F., Ruiz, J., Valencia, V.A., Ochoa-Landin, L., Chesley, J.T. and Zurcher, L. (2005), Laramide porphyry Cu-Mo mineralization in northern Mexico: age constraints from Re-Os geochronology in molybdenite; Economic Geology: 100: 1605-1616.
Singer, Donald A., Berger, Vladimir Iosifovich, Moring, Barry C. (2005) Porphyry copper deposits of the world: database, map, and grade and tonnage models. Open-File Report 2005-1060. US Geological Survey doi:10.3133/ofr20051060
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Grupo Mexico (2010), Annual Report for 2009, 88 pages.
www.gmexico.com (2010) http://www.gmexico.com/investors/reports.php
(n.d.) ADMMR Mines Database, Arizona Geological Survey.
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