SUPPORT US. Covid-19 has significantly affected our fundraising. Please help!
Log InRegister
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsBooks & Magazines
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral Quiz
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryMineral Photography

San Xavier Mine (San Xavier Mine shaft), 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 Mine (San Xavier Mine shaft)Mine
Pima Mining District (Olive Mining District; Mineral Hill Mining District; Twin Buttes Mining District)Mining District
Sierrita MountainsMountain Range
Pima Co.County
ArizonaState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
Key
Latitude & Longitude (WGS84):
31° 58' 17'' North , 111° 5' 23'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Sahuarita25,707 (2017)12.7km
East Sahuarita1,622 (2006)15.5km
Green Valley21,391 (2011)15.9km
Summit5,372 (2011)16.8km
Valencia West9,355 (2011)18.0km


‡Ref.: Ransome, F.L. (1922) Ore deposits of the Sierrita Mountains, Pima County, Arizona, in Contributions to Economic Geology (Short Papers and Preliminary Reports), 1921 - Part I.--Metals and Nonmetals except Fuels: U.S. Geological Survey Bulletin 725, p. 422-423.

Mayuga, M.N. (1942) The Geology and Ore Deposits of the Helmet Peak Area, Pima County, Arizona, PhD thesis, University of Arizona.

Wilson, E.D., et al (1950), Arizona zinc and lead deposits, part I, Arizona Bureau of Mines Bull. 156: 43, 46-47.

Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 137 (Table 4).

Elevatorski, E.A. (1978), Arizona Industrial Minerals, Arizona Department of Mineral Resources, Minerals Report No. 2: 49.

USGS Twin Buttes Quadrangle topo map.

Arizona Bureau of Mines file data.

MRDS database Dep. ID file #10039577, MRDS ID #M050362; and, Dep. ID #10234484, MAS ID #0040190388.

A former small underground Zn-Pb-Ag-Cu-Au-Baryte-Gypsum mine located in the SW ¼ sec. 2, T.17S., R.12E., in the northern part of the Pima District, 22 road miles south of Tucson and 5 miles NNW of Twin Buttes. Owned at times, or in part, by the San Xavier Mining & Smelting Co.; Myers; Clark & Rowe Co.; Empire Zinc Co.; Eagle Picher Mining & Smelting Co.; and McFarland & Hullinger.

Mineralization is irregular, pyrometasomatic replacement ore deposits as pipes, lenses, and mantos with secondary minerals in the oxidized zone and sulfides at depth. The ores are largely controlled by fractures and fracture intersections forming breccia pipes as well as favorable beds in Paleozoic limestone below a fault contact with mixed Triassic and Cretaceous sediments and volcanics, within the San Xavier fault zone. Individual ore bodies are small and not continuous. Average width and length are given in size/directional data. Oxidation extends to irregular depths 100 - 200 feet, but can reach as deep as the 420 foot-level.

In 1880, Colonel P. Sykes purchased the San Xavier mine and organized the San Xavier Mining and Smelting Co. A small blast furnace was erected on the Santa Cruz River, 9 miles south of Tucson, to treat the ore, but it was unsuccessful. During 1897, L.H. Manning shipped ore from the San Xavier Mine. The Empire Zinc Co. purchased the San Xavier in 1912 and shipped Pb-Zn-Ag ore from it until 1918. In 1943 Eagle Picher Mining and Smelting Co. constructed a concentrator at Sahuarita with a daily capacity of 175 tons, and reopened the San Xavier Mine. Since 1943 the San Xavier mine has been one of the more important producers of Zn & Pb in Arizona, and for 1948 its output of these metals ranked third in the state.

The Permian series of limestone, quartzite, and marl-gypsum beds is overlain on the south by Cretaceous arkose and shale. In places, Pre-cretaceous erosion removed part of the Permian series.

The beds lie in a southward-lnging syncline. Their dip ranges from 20º to 90º, and averages about 55º, southward. Relatively small rolls of southward trend are apparent underground.

A steeply southward-dipping fault zone strikes about N.70ºE. at the mine but swings southeasterly on the east and southwesterly on the west. It is a complex zone with variable dip generally somewhat steeper than the bedding. Its hanging wall aparently moved relatively upward and possibly eastward, but the amount of displacement is unknown. Two principal faults, termed the 17 and 10, are found in this fault zone. The 10 fault, in the eastern part of the mine, is within the hanging wall of 17 fault and subparallel to it in strike but of steeper dip. Other breaks strike northeastward and dip steeply. Another strikes eastward and dips at low angles southward.

The principal deposits form "chimeys," more or less closely associated with the 17 and 10 faults. These "chimneys" plunge steeply with the dip of the beds or with intersections of the faults and beds. Less important replacements follow northeast fissures and extend outward along beds. High grade ore tends to lie immediately below the arose or shale and also beneath low-angle slips.

Oxidation extends to irregular depths, generally 100-200 feet and exceptionally to the 420 level.

As a rule the individual orebodies are small and not continuous for long distances. They average about 15 or 18 feet in width, and their level lengths range unpredictably. In plan, the four principal "shoots" occur within an arcuate sector approximately 500 feet long.

Workings include shaft operations to a depth of 152.4 meters. Worked as early as the 1700's for silver. Total estimated and reported intermittent production, mainly in 1913-1918 and 1943-1959, would be some 800,000 tons of ore averaging about 10% Zn, 6% Pb, 3 oz. Ag/T, 0.7% Cu and minor Au. Production as of 1949 was some 17,260,303 pounds of Zn, 9,637,071 pounds of Pb, 1,009,398 pounds of Cu, and 274,516 ounces Ag. In March, 1949 ore ad been produced from the 660 level, and development had extended to the 900 level. San Xavier is now part of the Mission Complex. See MRDS record MO50387.

Select Mineral List Type

Standard Detailed Gallery Strunz Dana Chemical Elements

Mineral List


17 valid minerals.

Detailed Mineral List:

Baryte
Formula: BaSO4
Reference: MRDS database Dep. ID file #10234484, MAS ID #0040190388.
Calcite
Formula: CaCO3
Reference: Wilson, E.D., et al (1950), Arizona zinc and lead deposits, part I, AZ Bur. Mines Bull. 156: 47.
Cerussite
Formula: PbCO3
Reference: Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 137 (Table 4); Ransome (1922): 422-423; Wilson, E.D., et al (1950), Arizona zinc and lead deposits, part I, AZ Bur. Mines Bull. 156: 47; Arizona Bureau of Mines file data.
Chalcopyrite
Formula: CuFeS2
Reference: Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 137 (Table 4); Ransome (1922): 422-423; Wilson, E.D., et al (1950), Arizona zinc and lead deposits, part I, AZ Bur. Mines Bull. 156: 47; Arizona Bureau of Mines file data.
Chlorargyrite
Formula: AgCl
Reference: Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 137 (Table 4); Ransome (1922): 422-423; Wilson, E.D. (1950): 46-47; Arizona Bureau of Mines file data.
Epidote
Formula: {Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Reference: Wilson, E.D., et al (1950), Arizona zinc and lead deposits, part I, AZ Bur. Mines Bull. 156: 47.
Galena
Formula: PbS
Reference: Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 137 (Table 4); Ransome (1922): 422-423; Wilson, E.D., et al (1950), Arizona zinc and lead deposits, part I, AZ Bur. Mines Bull. 156: 47; Arizona Bureau of Mines file data.
'Garnet Group'
Formula: X3Z2(SiO4)3
Reference: Wilson, E.D., et al (1950), Arizona zinc and lead deposits, part I, AZ Bur. Mines Bull. 156: 47.
Gypsum
Formula: CaSO4 · 2H2O
Reference: MRDS database Dep. ID file #10234484, MAS ID #0040190388.
Hedenbergite
Formula: CaFe2+Si2O6
Reference: Wilson, E.D., et al (1950), Arizona zinc and lead deposits, part I, AZ Bur. Mines Bull. 156: 47.
Hematite
Formula: Fe2O3
Reference: Wilson, E.D., et al (1950), Arizona zinc and lead deposits, part I, AZ Bur. Mines Bull. 156: 47.
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 137 (Table 4); Ransome (1922): 422-423; Wilson, E.D., et al (1950), Arizona zinc and lead deposits, part I, AZ Bur. Mines Bull. 156: 47; Arizona Bureau of Mines file data.
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Wilson, E.D., et al (1950), Arizona zinc and lead deposits, part I, AZ Bur. Mines Bull. 156: 47.
Plumbojarosite
Formula: Pb0.5Fe3+3(SO4)2(OH)6
Reference: Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 137 (Table 4); Ransome (1922): 422-423; Wilson, E.D. (1950): 46-47; Arizona Bureau of Mines file data.
Pyrite
Formula: FeS2
Reference: Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 137 (Table 4); Ransome (1922): 422-423; Wilson, E.D., et al (1950), Arizona zinc and lead deposits, part I, AZ Bur. Mines Bull. 156: 47; Arizona Bureau of Mines file data.
Quartz
Formula: SiO2
Reference: Wilson, E.D., et al (1950), Arizona zinc and lead deposits, part I, AZ Bur. Mines Bull. 156: 47.
Smithsonite
Formula: ZnCO3
Reference: Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 137 (Table 4); Ransome (1922): 422-423; Wilson, E.D., et al (1950), Arizona zinc and lead deposits, part I, AZ Bur. Mines Bull. 156: 47; Arizona Bureau of Mines file data.
Sphalerite
Formula: ZnS
Reference: Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 137 (Table 4); Ransome (1922): 422-423; Wilson, E.D., et al (1950), Arizona zinc and lead deposits, part I, AZ Bur. Mines Bull. 156: 47; Arizona Bureau of Mines file data.
Wulfenite
Formula: Pb(MoO4)
Description: Sparsely distributed.
Reference: Wilson, E.D., et al (1950), Arizona zinc and lead deposits, part I, AZ Bur. Mines Bull. 156: 47.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Sphalerite2.CB.05aZnS
Group 3 - Halides
Chlorargyrite3.AA.15AgCl
Group 4 - Oxides and Hydroxides
Hematite4.CB.05Fe2O3
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Cerussite5.AB.15PbCO3
Smithsonite5.AB.05ZnCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Gypsum7.CD.40CaSO4 · 2H2O
Plumbojarosite7.BC.10Pb0.5Fe3+3(SO4)2(OH)6
Wulfenite7.GA.05Pb(MoO4)
Group 9 - Silicates
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Hedenbergite9.DA.15CaFe2+Si2O6
Unclassified Minerals, Rocks, etc.
'Garnet Group'-X3Z2(SiO4)3
'Limonite'-(Fe,O,OH,H2O)

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:1
Chalcopyrite2.9.1.1CuFeS2
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 9 - NORMAL HALIDES
AX
Chlorargyrite9.1.4.1AgCl
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Cerussite14.1.3.4PbCO3
Smithsonite14.1.1.6ZnCO3
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Gypsum29.6.3.1CaSO4 · 2H2O
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Plumbojarosite30.2.5.6Pb0.5Fe3+3(SO4)2(OH)6
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Wulfenite48.1.3.1Pb(MoO4)
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Hedenbergite65.1.3a.2CaFe2+Si2O6
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Garnet Group'-X3Z2(SiO4)3
'Limonite'-(Fe,O,OH,H2O)

List of minerals for each chemical element

HHydrogen
H PlumbojarositePb0.5Fe33+(SO4)2(OH)6
H Limonite(Fe,O,OH,H2O)
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
H GypsumCaSO4 · 2H2O
CCarbon
C SmithsoniteZnCO3
C CerussitePbCO3
C CalciteCaCO3
OOxygen
O SmithsoniteZnCO3
O CerussitePbCO3
O PlumbojarositePb0.5Fe33+(SO4)2(OH)6
O Limonite(Fe,O,OH,H2O)
O Garnet GroupX3Z2(SiO4)3
O QuartzSiO2
O HedenbergiteCaFe2+Si2O6
O CalciteCaCO3
O HematiteFe2O3
O MagnetiteFe2+Fe23+O4
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O WulfenitePb(MoO4)
O GypsumCaSO4 · 2H2O
O BaryteBaSO4
AlAluminium
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
SiSilicon
Si Garnet GroupX3Z2(SiO4)3
Si QuartzSiO2
Si HedenbergiteCaFe2+Si2O6
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
SSulfur
S PlumbojarositePb0.5Fe33+(SO4)2(OH)6
S PyriteFeS2
S SphaleriteZnS
S ChalcopyriteCuFeS2
S GalenaPbS
S GypsumCaSO4 · 2H2O
S BaryteBaSO4
ClChlorine
Cl ChlorargyriteAgCl
CaCalcium
Ca HedenbergiteCaFe2+Si2O6
Ca CalciteCaCO3
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Ca GypsumCaSO4 · 2H2O
FeIron
Fe PlumbojarositePb0.5Fe33+(SO4)2(OH)6
Fe Limonite(Fe,O,OH,H2O)
Fe PyriteFeS2
Fe ChalcopyriteCuFeS2
Fe HedenbergiteCaFe2+Si2O6
Fe HematiteFe2O3
Fe MagnetiteFe2+Fe23+O4
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
CuCopper
Cu ChalcopyriteCuFeS2
ZnZinc
Zn SmithsoniteZnCO3
Zn SphaleriteZnS
MoMolybdenum
Mo WulfenitePb(MoO4)
AgSilver
Ag ChlorargyriteAgCl
BaBarium
Ba BaryteBaSO4
PbLead
Pb CerussitePbCO3
Pb PlumbojarositePb0.5Fe33+(SO4)2(OH)6
Pb GalenaPbS
Pb WulfenitePb(MoO4)

Other Databases

Link to USGS MRDS:10039577

Other Regions, Features and Areas containing this locality

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.
 
Mineral and/or Locality  
Mindat Discussions Facebook Logo Instagram Logo Discord Logo
Mindat.org is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Public Relations by Blytheweigh.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2021, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters.
Privacy Policy - Terms & Conditions - Contact Us - Report a bug/vulnerability Current server date and time: January 24, 2021 15:49:00 Page generated: June 18, 2020 06:14:48
Go to top of page