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San Xavier pit (San Xavier open pit; San Xavier West Mine; San Xavier Unit Open pit), Mission complex, San Xavier, Pima Mining District (Olive Mining District; Mineral Hill Mining District; Twin Buttes Mining District), Sierrita Mountains, Pima Co., Arizona, USAi
Regional Level Types
San Xavier pit (San Xavier open pit; San Xavier West Mine; San Xavier Unit Open pit)Pit
Mission complexComplex
San Xavier- not defined -
Pima Mining District (Olive Mining District; Mineral Hill Mining District; Twin Buttes Mining District)Mining District
Sierrita MountainsMountain Range
Pima Co.County
ArizonaState
USACountry

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Key
Latitude & Longitude (WGS84):
32° 1' 36'' North , 111° 4' 48'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Valencia West9,355 (2011)12.2km
Summit5,372 (2011)12.9km
Drexel Heights27,749 (2011)13.6km
Sahuarita25,707 (2017)14.0km
East Sahuarita1,622 (2006)17.1km


A surface Cu-Ag mine located in the NE¼ sec. 23 & the NW¼ sec. 24, T16S, R12E. Discovered in 1955 by ASARCO geologists. Owned by the American Smelting & Refining Co. (ASARCO).

Mineralization is siliceous oxidized copper minerals in Cretaceous sedimentary rocks under alluvium cover.

Workings are an open pit operation. From 1967 through 1972, produced over 521,000 tons of leaching ore averaging about 0.76% Cu and 0.02 ounce/ton Ag.

Select Mineral List Type

Standard Detailed Gallery Strunz Dana Chemical Elements

Mineral List


15 valid minerals.

Detailed Mineral List:

Aragonite
Formula: CaCO3
Habit: Crystals
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 118.
Aurichalcite
Formula: (Zn,Cu)5(CO3)2(OH)6
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 123.
Azurite
Formula: Cu3(CO3)2(OH)2
Reference: personal communication, Fred Rhodes, 1993
Brochantite
Formula: Cu4(SO4)(OH)6
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 146.
Calcite
Formula: CaCO3
Habit: Flat-bladed.
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 357.
Chalcanthite
Formula: CuSO4 · 5H2O
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 161.
Chrysocolla
Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Reference: personal communication, Fred Rhodes, 1993
Coquimbite
Formula: AlFe3(SO4)6(H2O)12 · 6H2O
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 186.
Hemimorphite
Formula: Zn4Si2O7(OH)2 · H2O
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 248.
Malachite
Formula: Cu2(CO3)(OH)2
Reference: personal communication, Fred Rhodes, 1993
Marcasite
Formula: FeS2
Description: Occurs as thin coatings and veinlets.
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 290.
Melanterite
Formula: Fe2+(H2O)6SO4 · H2O
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 292.
Rosasite
Formula: (Cu,Zn)2(CO3)(OH)2
Description: Occurs intergrown with flat-bladed calcite.
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 357.
Sepiolite
Formula: Mg4(Si6O15)(OH)2 · 6H2O
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 366.
Sphalerite
Formula: ZnS
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 377.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Marcasite2.EB.10aFeS2
Sphalerite2.CB.05aZnS
Group 5 - Nitrates and Carbonates
Aragonite5.AB.15CaCO3
Aurichalcite5.BA.15(Zn,Cu)5(CO3)2(OH)6
Azurite5.BA.05Cu3(CO3)2(OH)2
Calcite5.AB.05CaCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Rosasite5.BA.10(Cu,Zn)2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Brochantite7.BB.25Cu4(SO4)(OH)6
Chalcanthite7.CB.20CuSO4 · 5H2O
Coquimbite7.CB.55AlFe3(SO4)6(H2O)12 · 6H2O
Melanterite7.CB.35Fe2+(H2O)6SO4 · H2O
Group 9 - Silicates
Chrysocolla9.ED.20Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
Hemimorphite9.BD.10Zn4Si2O7(OH)2 · H2O
Sepiolite9.EE.25Mg4(Si6O15)(OH)2 · 6H2O

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:2
Marcasite2.12.2.1FeS2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Azurite16a.2.1.1Cu3(CO3)2(OH)2
Malachite16a.3.1.1Cu2(CO3)(OH)2
Rosasite16a.3.1.2(Cu,Zn)2(CO3)(OH)2
Aurichalcite16a.4.2.1(Zn,Cu)5(CO3)2(OH)6
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Chalcanthite29.6.7.1CuSO4 · 5H2O
Melanterite29.6.10.1Fe2+(H2O)6SO4 · H2O
A2(XO4)3·H2O
Coquimbite29.8.3.1AlFe3(SO4)6(H2O)12 · 6H2O
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)m(XO4)pZq, where m:p>2:1
Brochantite30.1.3.1Cu4(SO4)(OH)6
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, x < 1
Sepiolite74.3.1b.1Mg4(Si6O15)(OH)2 · 6H2O
Unclassified Minerals, Mixtures, etc.
Aragonite-CaCO3

List of minerals for each chemical element

HHydrogen
H Aurichalcite(Zn,Cu)5(CO3)2(OH)6
H BrochantiteCu4(SO4)(OH)6
H ChalcanthiteCuSO4 · 5H2O
H CoquimbiteAlFe3(SO4)6(H2O)12 · 6H2O
H HemimorphiteZn4Si2O7(OH)2 · H2O
H MelanteriteFe2+(H2O)6SO4 · H2O
H Rosasite(Cu,Zn)2(CO3)(OH)2
H SepioliteMg4(Si6O15)(OH)2 · 6H2O
H AzuriteCu3(CO3)2(OH)2
H MalachiteCu2(CO3)(OH)2
H ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
CCarbon
C AragoniteCaCO3
C Aurichalcite(Zn,Cu)5(CO3)2(OH)6
C Rosasite(Cu,Zn)2(CO3)(OH)2
C CalciteCaCO3
C AzuriteCu3(CO3)2(OH)2
C MalachiteCu2(CO3)(OH)2
OOxygen
O AragoniteCaCO3
O Aurichalcite(Zn,Cu)5(CO3)2(OH)6
O BrochantiteCu4(SO4)(OH)6
O ChalcanthiteCuSO4 · 5H2O
O CoquimbiteAlFe3(SO4)6(H2O)12 · 6H2O
O HemimorphiteZn4Si2O7(OH)2 · H2O
O MelanteriteFe2+(H2O)6SO4 · H2O
O Rosasite(Cu,Zn)2(CO3)(OH)2
O CalciteCaCO3
O SepioliteMg4(Si6O15)(OH)2 · 6H2O
O AzuriteCu3(CO3)2(OH)2
O MalachiteCu2(CO3)(OH)2
O ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
MgMagnesium
Mg SepioliteMg4(Si6O15)(OH)2 · 6H2O
AlAluminium
Al CoquimbiteAlFe3(SO4)6(H2O)12 · 6H2O
Al ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
SiSilicon
Si HemimorphiteZn4Si2O7(OH)2 · H2O
Si SepioliteMg4(Si6O15)(OH)2 · 6H2O
Si ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
SSulfur
S BrochantiteCu4(SO4)(OH)6
S ChalcanthiteCuSO4 · 5H2O
S CoquimbiteAlFe3(SO4)6(H2O)12 · 6H2O
S MarcasiteFeS2
S MelanteriteFe2+(H2O)6SO4 · H2O
S SphaleriteZnS
CaCalcium
Ca AragoniteCaCO3
Ca CalciteCaCO3
FeIron
Fe CoquimbiteAlFe3(SO4)6(H2O)12 · 6H2O
Fe MarcasiteFeS2
Fe MelanteriteFe2+(H2O)6SO4 · H2O
CuCopper
Cu Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Cu BrochantiteCu4(SO4)(OH)6
Cu ChalcanthiteCuSO4 · 5H2O
Cu Rosasite(Cu,Zn)2(CO3)(OH)2
Cu AzuriteCu3(CO3)2(OH)2
Cu MalachiteCu2(CO3)(OH)2
Cu ChrysocollaCu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1
ZnZinc
Zn Aurichalcite(Zn,Cu)5(CO3)2(OH)6
Zn HemimorphiteZn4Si2O7(OH)2 · H2O
Zn Rosasite(Cu,Zn)2(CO3)(OH)2
Zn SphaleriteZnS

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 138 (Table 4).
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 118, 123, 146, 161, 186, 248, 290, 292, 357, 366, 377.
USGS San Xavier Mission Quadrangle topo map.
Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10113892, MRDS ID #M050619, MAS ID #0040190390.

Other Databases

Link to USGS MRDS:10113892

External Links


Other Regions, Features and Areas containing this locality

North America
North America PlateTectonic Plate
USA

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