Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Nevada Mine, C and H Mine group, Sycamore Canyon, Helvetia, Helvetia-Rosemont Mining District, Pima County, Arizona, USAi
Regional Level Types
Nevada MineMine
C and H Mine group- not defined -
Sycamore CanyonCanyon
HelvetiaTown (Former)
Helvetia-Rosemont Mining DistrictMining District
Pima CountyCounty
ArizonaState
USACountry

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PhotosMapsSearch
Type:
Mindat Locality ID:
36057
Long-form identifier:
mindat:1:2:36057:0
GUID (UUID V4):
0
Other/historical names associated with this locality:
Nevada prospect


‡Ref.: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 136.

Lee, C.A., and Borland, G.C. (1935) The geology and ore deposits of the Cuprite mining district: Tucson, University of Arizona, M.S. thesis, 54 p.

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: 111-112.

Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 124 (Table 4).

A Cu-Ag-Au mine group located in sec. 21, T.17S., R.16E.

Mineralization is sporadic and relatively weak copper carbonates and minor sulfides, pyrite, scheelite, and powellite in small, irregular pyrometasomatic deposits in Cretaceous brecciated conglomerates and faulted Paleozoic limestones in contact with dikes and stocks of Laramide quartz monzonite.

Workings in the group are shallow shafts and adits. Possibly some 100 tons of hand-picked copper ore averaging 3-5% Cu were produced prior to 1900 and 3 tons of 1%+ WO3 ore were produced in 1955.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


3 valid minerals.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Pyrite2.EB.05aFeS2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Powellite7.GA.05Ca(MoO4)
Scheelite7.GA.05Ca(WO4)

List of minerals for each chemical element

OOxygen
O PowelliteCa(MoO4)
O ScheeliteCa(WO4)
SSulfur
S PyriteFeS2
CaCalcium
Ca PowelliteCa(MoO4)
Ca ScheeliteCa(WO4)
FeIron
Fe PyriteFeS2
MoMolybdenum
Mo PowelliteCa(MoO4)
WTungsten
W ScheeliteCa(WO4)

Other Regions, Features and Areas containing this locality

USA

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