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Pomona Mine, Brown Canyon, Cochise County, Arizona, USAi
Regional Level Types
Pomona MineMine
Brown CanyonCanyon
Cochise CountyCounty
ArizonaState
USACountry

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Latitude & Longitude (WGS84):
31° 27' 15'' North , 110° 19' 54'' West
Latitude & Longitude (decimal):
Type:
Nearest Settlements:
PlacePopulationDistance
Sierra Vista Southeast14,797 (2011)10.9km
Sierra Vista43,355 (2017)11.5km
Miracle Valley644 (2011)18.8km
Huachuca City1,755 (2017)19.3km
Palominas212 (2011)21.8km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Huachuca Mineral and Gem ClubSierra Vista, Arizona11km
Mindat Locality ID:
32758
Long-form identifier:
mindat:1:2:32758:4
GUID (UUID V4):
0
Other/historical names associated with this locality:
Pomono Mine; Emerald Mine; James Mine; Black Eagle Mine; James group of claims; James property; James Group


‡Ref.: Wilson, E.D. (1941), Tungsten deposits of Arizona, Arizona Bureau of Mines Bull. 148: 47.

Weber, R.H. (1950), The Geology of the East-central Portion of the Huachuca Mountains, Arizona, University of Arizona, PhD. Thesis: 150-156.

Wilson, E.D., et al (1951), Arizona zinc and lead deposits, part II, Arizona Bureau of Mines Bull. 158: 40, 47.

Galbraith, F.W. & D.J. Brennan (1959), Minerals of Arizona: 81.

Dale, V.B., Stewart, L.A., and McKinney, W.A. (1960), Tungsten deposits of Cochise, Pima, and Santa Cruz Counties., Arizona, U.S. Bureau of Mines Report of Investigation 5650: 32-33.

Keith, Stanton B. (1973), Arizona Bureau of Geology & Mineral Technology, Geol. Sur. Branch Bull. 187, Index of Mining Properties in Cochise County, Arizona: 66 (Table 4).

Ludington, S. (1984) Preliminary mineral-resource assessment of the proposed Miller Peak Wilderness, Cochise County, Arizona: U.S. Geological Survey Open-File Report 84-0293, 10 p.: 3-4.

Niemuth, N.J. & K.A. Phillips (1992), Copper Oxide Resources, Arizona Department of Mines & Mineral Resources Open File Report 92-10: 5 (Table 1).

Tuftin, S.E. and Armstrong, R.C. (1994) U.S. Bureau of Mines Open File Report Mineral Land Assessment (MLA) 1-94.

Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 362.

Dunning, Charles H., Arizona Department of Mineral Resources James Mine group file, personal communication.

Yale Peabody GNIS database (NOTE: this database is derived from USGS 1:24,000 topographic map data).

MRDS database Dep. ID file #10109616, MRDS ID #M050512; and, Dep. ID #10234033, MAS ID #0040030198.

A former small W-Pb-Cu-Zn-Ag-Au mine located on 3 unpatented claims in South-central sec. 5 & North-central sec. 8, T.23S., R.20E. (Miller Peak 7.5 minute topo map), upper Brown Canyon, near crest of the range (7,200 feet of altitude) and adjacent to the Fort Huachuca military reservation. Produced 1918, 1945-1947. Owned at times, or in part, by the Pomona Mining Co.; Huachuca Mining and Milling Co.; Sierra Vista Mining Co.; J. Kelley & Associates (WWI); H.S. James (1927- ); and, by the Border-Land Metals Co.

Mineralization is scheelite and oxidized base metal sulfides in a quartz vein and in pockets in deformed and thrust faulted Cambrian Abrigo and Devonian Martin limestone (lower Paleozoic) beds. The principal vein crops out for a length of about 150 feet with a width of 1½ to 10 feet, a N40W strike, and a dip of 45ºSW to almost flat. Oreshoots to 5 feet thick and more than 10 feet long appear to occur at intersections of NW & northly fissures. Ore consists of coarsely crystalline grayish-white quartz with tungsten mineralization.

Workings include a 200 foot long adit with several stopes and drifts. This mine produced 450 tons of tungsten ore in 1918 and intermittently some 120 tons from 1945 to 1963. Some base metal sulfides were produced as a by-product.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


10 valid minerals.

Detailed Mineral List:

Anglesite
Formula: PbSO4
Calcite
Formula: CaCO3
Chalcopyrite
Formula: CuFeS2
Galena
Formula: PbS
Galena var. Silver-bearing Galena
Formula: PbS with Ag
Goethite
Formula: Fe3+O(OH)
Hematite
Formula: Fe2O3
'Limonite'
Malachite
Formula: Cu2(CO3)(OH)2
Pyrite
Formula: FeS2
Quartz
Formula: SiO2
Scheelite
Formula: Ca(WO4)
Colour: Straw-colored
Description: Occurs as irregularly distributed particles in vein quartz & in quartz stringers in limestone.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Galena2.CD.10PbS
var. Silver-bearing Galena2.CD.10PbS with Ag
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Goethite4.00.Fe3+O(OH)
Hematite4.CB.05Fe2O3
Quartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Malachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Anglesite7.AD.35PbSO4
Scheelite7.GA.05Ca(WO4)
Unclassified
'Limonite'-

List of minerals for each chemical element

HHydrogen
H GoethiteFe3+O(OH)
H MalachiteCu2(CO3)(OH)2
CCarbon
C CalciteCaCO3
C MalachiteCu2(CO3)(OH)2
OOxygen
O AnglesitePbSO4
O CalciteCaCO3
O GoethiteFe3+O(OH)
O HematiteFe2O3
O MalachiteCu2(CO3)(OH)2
O QuartzSiO2
O ScheeliteCa(WO4)
SiSilicon
Si QuartzSiO2
SSulfur
S AnglesitePbSO4
S ChalcopyriteCuFeS2
S GalenaPbS
S PyriteFeS2
S Galena var. Silver-bearing GalenaPbS with Ag
CaCalcium
Ca CalciteCaCO3
Ca ScheeliteCa(WO4)
FeIron
Fe ChalcopyriteCuFeS2
Fe GoethiteFe3+O(OH)
Fe HematiteFe2O3
Fe PyriteFeS2
CuCopper
Cu ChalcopyriteCuFeS2
Cu MalachiteCu2(CO3)(OH)2
AgSilver
Ag Galena var. Silver-bearing GalenaPbS with Ag
WTungsten
W ScheeliteCa(WO4)
PbLead
Pb AnglesitePbSO4
Pb GalenaPbS
Pb Galena var. Silver-bearing GalenaPbS with Ag

Other Databases

Link to USGS MRDS:10109616

Other Regions, Features and Areas containing this locality

Mexico
North AmericaContinent
North America PlateTectonic Plate
USA

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