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

Golden Gate Mine group (Golden Gate Mine; U.S. Grant Mine; Amerco Mine; Fish Mine; Lexington Mine), Rosemont (Rosemont Camp), Helvetia-Rosemont Mining District, Pima Co., Arizona, USAi
Regional Level Types
Golden Gate Mine group (Golden Gate Mine; U.S. Grant Mine; Amerco Mine; Fish Mine; Lexington Mine)- not defined -
Rosemont (Rosemont Camp)- not defined -
Helvetia-Rosemont Mining DistrictMining District
Pima Co.County
ArizonaState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
Key
Latitude & Longitude (WGS84):
31° 48' 5'' North , 110° 45' 39'' West
Latitude & Longitude (decimal):
Nearest Settlements:
PlacePopulationDistance
Sonoita818 (2015)16.7km
Corona de Tucson5,675 (2011)18.3km
East Sahuarita1,622 (2006)22.3km
Green Valley21,391 (2011)22.8km
Sahuarita25,707 (2017)25.3km


‡Ref.: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 92, 128, 132.

Galbraith, F.W. & D.J. Brennan (1959), Minerals of Arizona: 50.

Heatwole, D.A. (1966) Geology of the Box Canyon area, Santa Rita Mountains, Pima County, Arizona: Tucson, University of Arizona, M.S. thesis, 70 p.

Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 126 (Table 4).

Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineral Resources Open File Report 92-10: 12 (Table 1).

Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 158, 235.

Arizona Bureau of Mines field notes (1971), vol. 1, no. 2.

Drewes, H.D. (1971) Geologic map of the Sahuarita quadrangle, southeast of Tucson, Pima County, Arizona: U.S. Geological Survey Miscellaneous Geologic Investigations Map I-613, 1 sheet, scale 1:48,000.

USGS Sahuarita Quadrangle topo map.

Arizona Department of Mineral Resources file data.

MRDS database Dep. ID file #10039408, MRDS ID #M050041; and, Dep. ID #10283576, MAS ID #0040190233.

A former small underground Au-Ag-Pb-Zn-Cu mine group located in the SE ¼ sec. 1 & the NE ¼ sec. 12, T.19S., R.15E. (Sahuarita 15 minute topo map), 2½ miles SW of Rosemont, and 28 miles SE of Tucson. It lies along the ridge running northwestward from Deering Camp and in the valley west of the ridge. Produced 1925-1969. Owned at times, or in part, by Holliday; Ramsey; Hunnell; Halbert; Nail; E.C. Ranney; and the Arizona Mining & Refining Co.

Mineralization is irregular quartz stringers, lenses, and bunches containing partly oxidized base metal sulfides in fissure veins and replacements along thrust-fault contacts of Paleozoic limestone and Cretaceous sedimentary formations. Galena in small stringers in sheared limestone - shale. Ore apparently in silicious pockets, veinlets, and films on slickensides. Ore is 4.57 meters thick. Host rock units are the Willow Canyon Formation conglomerate and siltstone, and the Martin Formation Dolomite.

A seeming depositional contact of dull-red sandy shale and overlying limestone dips 45ºE. Along this contact movement has produced a shear zone about 15 feet wide composed of shattered altered limestone and sandy shale. In this zone, which is heavily iron-stained, occur stringers and bunches of galena and copper carbonates in films along slickensided surfaces. Free gold can be obtained by panning almost any of the more heavily iron-stained croppings, or from the siliceous pockets at the surface, which show considerable limonite and cerussite.

Local structures include thrust and normal faulting, fracture zones, homoclinal. Regional trends include tilting and broad open folds in the south and extensive faulting in the north.

Workings include numerous small shafts, including a 49 foot incline, tunnels, adits and open cuts. Worked sporadically from the 1880's to 1969. Produced some 200 tons of ore averaging about 1 oz. Au/T, 3 oz. Ag/T, 4% Pb and minor Zn & Cu.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


15 valid minerals.

Detailed Mineral List:

Anglesite
Formula: PbSO4
Reference: Rolf Luetcke
Azurite
Formula: Cu3(CO3)2(OH)2
Reference: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 132.
Calcite
Formula: CaCO3
Reference: Rolf Luetcke
Cerussite
Formula: PbCO3
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 158; Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 132; Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 50.
Chalcopyrite
Formula: CuFeS2
Reference: Rolf Luetcke
Covellite
Formula: CuS
Reference: Rolf Luetcke
Galena
Formula: PbS
Reference: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 132.
Goethite
Formula: α-Fe3+O(OH)
Reference: Rolf Luetcke
Gold
Formula: Au
Description: Free gold in croppings and in siliceous pockets.
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 235; Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 132.
Hematite
Formula: Fe2O3
Reference: Rolf Luetcke
Hydrozincite
Formula: Zn5(CO3)2(OH)6
Reference: Rolf Luetcke
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 132.
Malachite
Formula: Cu2(CO3)(OH)2
Reference: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 132.
Pyrite
Formula: FeS2
Reference: Rolf Luetcke
Quartz
Formula: SiO2
Reference: Rolf Luetcke
Willemite
Formula: Zn2SiO4
Reference: Rolf Luetcke

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Gold1.AA.05Au
Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Covellite2.CA.05aCuS
Galena2.CD.10PbS
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Azurite5.BA.05Cu3(CO3)2(OH)2
Calcite5.AB.05CaCO3
Cerussite5.AB.15PbCO3
Hydrozincite5.BA.15Zn5(CO3)2(OH)6
Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Anglesite7.AD.35PbSO4
Group 9 - Silicates
Willemite9.AA.05Zn2SiO4
Unclassified Minerals, Rocks, etc.
'Limonite'-(Fe,O,OH,H2O)

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Metals, other than the Platinum Group
Gold1.1.1.1Au
Group 2 - SULFIDES
AmXp, with m:p = 1:1
Covellite2.8.12.1CuS
Galena2.8.1.1PbS
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 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Cerussite14.1.3.4PbCO3
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Azurite16a.2.1.1Cu3(CO3)2(OH)2
Malachite16a.3.1.1Cu2(CO3)(OH)2
Hydrozincite16a.4.1.1Zn5(CO3)2(OH)6
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Anglesite28.3.1.3PbSO4
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [4] coordination
Willemite51.1.1.2Zn2SiO4
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Limonite'-(Fe,O,OH,H2O)

List of minerals for each chemical element

HHydrogen
H Limonite(Fe,O,OH,H2O)
H MalachiteCu2(CO3)(OH)2
H AzuriteCu3(CO3)2(OH)2
H HydrozinciteZn5(CO3)2(OH)6
H Goethiteα-Fe3+O(OH)
CCarbon
C CerussitePbCO3
C MalachiteCu2(CO3)(OH)2
C AzuriteCu3(CO3)2(OH)2
C CalciteCaCO3
C HydrozinciteZn5(CO3)2(OH)6
OOxygen
O CerussitePbCO3
O Limonite(Fe,O,OH,H2O)
O MalachiteCu2(CO3)(OH)2
O AzuriteCu3(CO3)2(OH)2
O AnglesitePbSO4
O HematiteFe2O3
O QuartzSiO2
O CalciteCaCO3
O HydrozinciteZn5(CO3)2(OH)6
O WillemiteZn2SiO4
O Goethiteα-Fe3+O(OH)
SiSilicon
Si QuartzSiO2
Si WillemiteZn2SiO4
SSulfur
S GalenaPbS
S AnglesitePbSO4
S PyriteFeS2
S ChalcopyriteCuFeS2
S CovelliteCuS
CaCalcium
Ca CalciteCaCO3
FeIron
Fe Limonite(Fe,O,OH,H2O)
Fe HematiteFe2O3
Fe PyriteFeS2
Fe ChalcopyriteCuFeS2
Fe Goethiteα-Fe3+O(OH)
CuCopper
Cu MalachiteCu2(CO3)(OH)2
Cu AzuriteCu3(CO3)2(OH)2
Cu ChalcopyriteCuFeS2
Cu CovelliteCuS
ZnZinc
Zn HydrozinciteZn5(CO3)2(OH)6
Zn WillemiteZn2SiO4
AuGold
Au GoldAu
PbLead
Pb CerussitePbCO3
Pb GalenaPbS
Pb AnglesitePbSO4

Other Databases

USGS MRDS Record:10039408

Other Regions, Features and Areas containing this locality

North America
North America PlateTectonic Plate
USA

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 1993-2020, 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 Current server date and time: November 30, 2020 08:15:12 Page generated: February 21, 2020 20:35:20
Go to top of page