Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
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Crown King & Tiger Mine groups (Crown King and Tiger Mines), Esperanza Mine group [old], Pima Mining District, Sierrita Mountains, Pima County, Arizona, USAi
Regional Level Types
Crown King & Tiger Mine groups (Crown King and Tiger Mines)- not defined -
Esperanza Mine group [old]- not defined -
Pima Mining DistrictMining District
Sierrita MountainsMountain Range
Pima CountyCounty
ArizonaState
USACountry

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Latitude & Longitude (WGS84):
31° 51' 45'' North , 111° 6' 20'' West
Latitude & Longitude (decimal):
31.86250,-111.10556
GeoHash:
G#: 9t8vr8rks
GRN:
N22W67
Köppen climate type:
BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Green Valley21,391 (2011)10.6km
Arivaca Junction1,090 (2011)15.6km
Amado295 (2011)17.6km
Sahuarita25,707 (2017)17.7km
East Sahuarita1,622 (2006)18.9km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Old Pueblo Lapidary ClubTucson, Arizona43km
Tucson Gem and Mineral SocietyTucson, Arizona43km
Mindat Locality ID:
36243
Long-form identifier:
mindat:1:2:36243:5
GUID (UUID V4):
0


Ref.: Cooper, J.R. (1960) Some geologic features of the Pima mining district, Pima County, Arizona: U.S. Geological Survey Bulletin 1112-C, p. 63-103, 1 sheet, scale 1:31,680.

Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 134 (Table 4).

Copper Handbook (1908, 1912-1913, 1920).

USGS Twin Buttes Quadrangle topo map.

Arizona Bureau of Mines file data.

MRDS database Dep. ID file #10026759, MRDS ID #M000103; and, Dep. ID #10113154, MAS ID #0040190186.

A former small surface and underground Pb-Cu-Ag-Zn-Au-Mo mine group located in South-central sec. 16, North central sec. 21, and West-central sec. 15, 16, & 21, T.18S., R.12E, 4 miles SW of Twin Buttes on private land. Owned at times, or in part, by the Chesterfield Copper Co.; Blanche Rose Mining Co.; and the Magnate Copper Co. Originally prospected in Spanish colonial times.


Mineralization is spotty base metal sulfides, partly oxidized, in irregular quartz veins along faults and fractures in Cretaceous sedimentary-volcanic formations intruded by Laramide quartz monzonite porphyry and andesite dikes and plugs. Alteration included partly oxidized, locally kaolinized and sericitized, slightly silicified areas. The Cretaceous rocks are Arkose, quartzite, conglomerate, shale, rhyolite, and graywacke.

Workings include numerous small shafts and pits. Worked intermittently from the early 1900's to about 1917. Produced some 360 tons of ore averaging about 7% Pb, 4% Cu, 13 oz. Ag/T and minor Au.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


7 valid minerals.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘGalena2.CD.10PbS
ⓘPyrite2.EB.05aFeS2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
Group 9 - Silicates
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘKaolinite9.ED.05Al2(Si2O5)(OH)4

List of minerals for each chemical element

HHydrogen
Hⓘ KaoliniteAl2(Si2O5)(OH)4
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CCarbon
Cⓘ CalciteCaCO3
OOxygen
Oⓘ CalciteCaCO3
Oⓘ KaoliniteAl2(Si2O5)(OH)4
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
AlAluminium
Alⓘ KaoliniteAl2(Si2O5)(OH)4
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SiSilicon
Siⓘ KaoliniteAl2(Si2O5)(OH)4
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
SSulfur
Sⓘ ChalcopyriteCuFeS2
Sⓘ GalenaPbS
Sⓘ PyriteFeS2
Sⓘ SphaleriteZnS
KPotassium
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
CaCalcium
Caⓘ CalciteCaCO3
FeIron
Feⓘ ChalcopyriteCuFeS2
Feⓘ PyriteFeS2
CuCopper
Cuⓘ ChalcopyriteCuFeS2
ZnZinc
Znⓘ SphaleriteZnS
PbLead
Pbⓘ GalenaPbS

Other Databases

Link to USGS MRDS:10026759

Other Regions, Features and Areas containing this locality

Mexico
North AmericaContinent
North America PlateTectonic Plate

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