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Silver Bell Mine (Silver Bill Mine), Washington Camp-Duquesne Mining District, Patagonia Mining District, Patagonia Mountains, Santa Cruz Co., Arizona, USAi
Regional Level Types
Silver Bell Mine (Silver Bill Mine)Mine
Washington Camp-Duquesne Mining DistrictMining District
Patagonia Mining DistrictMining District
Patagonia MountainsMountain Range
Santa Cruz Co.County
ArizonaState
USACountry

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Key
Latitude & Longitude (WGS84):
31° 21' 56'' North , 110° 41' 32'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Kino Springs136 (2011)11.2km
Francisco Miguel Cárdenas Valdez (Mascareñas)541 (2014)13.9km
Santa Cruz1,038 (2018)17.3km
Beyerville177 (2011)17.9km
Patagonia890 (2017)20.3km


A former underground Zn-Pb-Cu-Ag-Au mine located in the SE ¼ sec. 3, T24S, R16E (protracted), in the southwestern part of the camp, at an elevation of about 5,220 feet, and almost adjoins the Belmont Mine on the NE, on National Forest land. Owned at times, or in part, by the Duquesne Mining & Reduction Co. (1901- ); and, Nash Mines. NOTE: Anthony, et al, refer to a Silver Bill Mine, which is an apparent typographical error for this mine.

Mineralization is irregular lenses containing sulfides with calcium silicates in pyrometamorphosed Permian Naco Group limestone. Oxidized with strong iron oxides and some copper carbonates near the surface. Abundant garnet. Mineralization is controlled by faults and contact with Laramide granodiorite.

Mineral deposits of the Washington-Duquesne area occupy a limestone-sediment belt (2.5 miles long by 1.25 miles wide) surrounded by igneous rocks which also form detached masses and dikes within the belt.

The deposit occurs in a garnet zone contained in highly metamorphosed crystalline limestone. The limestone dips to the SW and, as at the Holland Mine, is cut transversely by a sheeting that dips to the NE. The mineralized zone trends N.40ºW. and dips 45 or 50ºSW., conformably with the limestone.

Workings include a 60 foot deep shaft, that inclines 50º to 60º SW, and tunnel operations. Rich Pb-Ag ore was mined from the surface in the late 1800's and some mining occurred in the 1900's. Production would be some 500 tons of ore averaging about 5% Zn, 4% Pb, 1% Cu and 3 oz. Ag/T.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


6 valid minerals.

Detailed Mineral List:

Andradite
Formula: Ca3Fe3+2(SiO4)3
Reference: Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 79 (Table 4); Schrader (1915): 341; Arizona Bureau of Mines file data.
Chalcopyrite
Formula: CuFeS2
Reference: Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 79 (Table 4); Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 341; Arizona Bureau of Mines file data.
Galena
Formula: PbS
Reference: Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 79 (Table 4); Schrader (1915): 341; Arizona Bureau of Mines file data.
Palygorskite
Formula: (Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
Description: Occurs as tough, matted, fibrous masses on fault surfaces.
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 319.
Pyrite
Formula: FeS2
Reference: Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 79 (Table 4); Schrader (1915): 341; Arizona Bureau of Mines file data.
Sphalerite
Formula: ZnS
Reference: Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 79 (Table 4); Schrader (1915): 341; Arizona Bureau of Mines file data.

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 9 - Silicates
Andradite9.AD.25Ca3Fe3+2(SiO4)3
Palygorskite9.EE.20(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O

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 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Andradite51.4.3b.1Ca3Fe3+2(SiO4)3
Group 74 - PHYLLOSILICATES Modulated Layers
Modulated Layers with joined strips
Palygorskite74.3.1a.1(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O

List of minerals for each chemical element

HHydrogen
H Palygorskite(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
OOxygen
O AndraditeCa3Fe23+(SiO4)3
O Palygorskite(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
MgMagnesium
Mg Palygorskite(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
AlAluminium
Al Palygorskite(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
SiSilicon
Si AndraditeCa3Fe23+(SiO4)3
Si Palygorskite(Mg,Al)5(Si,Al)8O20(OH)2 · 8H2O
SSulfur
S GalenaPbS
S SphaleriteZnS
S PyriteFeS2
S ChalcopyriteCuFeS2
CaCalcium
Ca AndraditeCa3Fe23+(SiO4)3
FeIron
Fe PyriteFeS2
Fe ChalcopyriteCuFeS2
Fe AndraditeCa3Fe23+(SiO4)3
CuCopper
Cu ChalcopyriteCuFeS2
ZnZinc
Zn SphaleriteZnS
PbLead
Pb GalenaPbS

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Keith, Stanton B. (1975), Arizona Bureau of Mines Bull. 191, Index of Mining Properties in Santa Cruz County Arizona: 79 (Table 4).
Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 341.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 319.
Arizona Bureau of Mines file data.
MRDS database Dep. ID file #10210425, MAS ID #0040230356.

Other Databases

USGS MRDS Record:10210425

Other Regions, Features and Areas containing this locality

North America
North America PlateTectonic Plate

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