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Copper Point Mine (Copper Point prospect), Hilton Mines (Hilton Mine group; Hiltano group; Hiltano & State of Maine group), Copper Camp, Hilton (Lead Mountain), Empire District, Empire Mts, Pima Co., Arizona, USAi
Regional Level Types
Copper Point Mine (Copper Point prospect)Mine
Hilton Mines (Hilton Mine group; Hiltano group; Hiltano & State of Maine group)Group of Mines
Copper Camp- not defined -
Hilton (Lead Mountain)- not defined -
Empire DistrictMining District
Empire MtsMountain Range
Pima Co.County
ArizonaState
USACountry

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Key
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Latitude & Longitude (WGS84): 31° 53' 38'' North , 110° 36' 56'' West
Latitude & Longitude (decimal): 31.89389,-110.61556
GeoHash:G#: 9t9m6yh5q
USGS MRDS Record:10039597
Locality type:Mine
Köppen climate type:BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
PlacePopulationDistance
Pimaco Two682 (2011)16.6km
Corona de Tucson5,675 (2011)17.1km
Vail10,208 (2011)19.4km
Mescal1,812 (2011)20.1km
Sonoita818 (2015)24.1km


‡Ref.: Schrader, F.C. & J.M. Hill (1915), Mineral deposits of the Santa Rita and Patagonia Mountains, Arizona, USGS Bull. 582: 141, 150.

Finnell, T.L. (1971), Preliminary Geologic Map of the Empire Mts quadrangle, Pima County, Arizona, USGS Open-file Report.

Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 225.

Arizona Bureau of Mines file data.

MRDS database Dep. ID file #10039597, MRDS ID #M050395; and, Dep. ID #10235003, MAS ID #0040190477.

A former small Cu-Ag-Au mine located in sec. 4, T18S, R17E, about 1 mile NE of the Hilton Ranch.

Mineralization is a vein deposit with a tabular ore body involving a contact between intrusive granite and limestone. The vein is 8 inches (20 cm) wide with garnetiferous, epidotized, ferruginous gangue containing chiefly sulfides, some copper carbonates and specularite.

The ore is reported to average 20% Cu, 20 oz. Ag/T and $3 of Au/T (period values). No production record.

Regions containing this locality

North America PlateTectonic Plate
Sonoran Desert, North AmericaDesert

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


7 valid minerals.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Chalcocite2.BA.05Cu2S
Chalcopyrite2.CB.10aCuFeS2
Pyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
Hematite4.CB.05Fe2O3
var: Specularite4.CB.05Fe2O3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Fornacite7.FC.10Pb2Cu(CrO4)(AsO4)(OH)
Wulfenite7.GA.05Pb(MoO4)
Group 9 - Silicates
Epidote9.BG.05a{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Unclassified Minerals, Rocks, etc.
'Garnet Group'-X3Z2(SiO4)3

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Chalcocite2.4.7.1Cu2S
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 43 - COMPOUND PHOSPHATES, ETC.
Anhydrous Compound Phosphates, etc·, Containing Hydroxyl or Halogen
Fornacite43.4.3.2Pb2Cu(CrO4)(AsO4)(OH)
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Wulfenite48.1.3.1Pb(MoO4)
Group 58 - SOROSILICATES Insular, Mixed, Single, and Larger Tetrahedral Groups
Insular, Mixed, Single, and Larger Tetrahedral Groups with cations in [6] and higher coordination; single and double groups (n = 1, 2)
Epidote58.2.1a.7{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Unclassified Minerals, Mixtures, etc.
'Garnet Group'-X3Z2(SiO4)3
Hematite
var: Specularite
-Fe2O3

List of minerals for each chemical element

HHydrogen
H FornacitePb2Cu(CrO4)(AsO4)(OH)
H Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
OOxygen
O FornacitePb2Cu(CrO4)(AsO4)(OH)
O Garnet GroupX3Z2(SiO4)3
O Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
O Hematite (var: Specularite)Fe2O3
O WulfenitePb(MoO4)
O HematiteFe2O3
AlAluminium
Al Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
SiSilicon
Si Garnet GroupX3Z2(SiO4)3
Si Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
SSulfur
S ChalcopyriteCuFeS2
S PyriteFeS2
S ChalcociteCu2S
CaCalcium
Ca Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
CrChromium
Cr FornacitePb2Cu(CrO4)(AsO4)(OH)
FeIron
Fe Epidote{Ca2}{Al2Fe3+}(Si2O7)(SiO4)O(OH)
Fe ChalcopyriteCuFeS2
Fe PyriteFeS2
Fe Hematite (var: Specularite)Fe2O3
Fe HematiteFe2O3
CuCopper
Cu FornacitePb2Cu(CrO4)(AsO4)(OH)
Cu ChalcopyriteCuFeS2
Cu ChalcociteCu2S
AsArsenic
As FornacitePb2Cu(CrO4)(AsO4)(OH)
MoMolybdenum
Mo WulfenitePb(MoO4)
PbLead
Pb FornacitePb2Cu(CrO4)(AsO4)(OH)
Pb WulfenitePb(MoO4)

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Quaternary - Miocene
0 - 23.03 Ma



ID: 3185380
Cenozoic sedimentary rocks

Age: Cenozoic (0 - 23.03 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Olenekian - Ediacaran
247.2 - 635 Ma



ID: 3017836
Paleozoic sedimentary rocks

Age: Neoproterozoic to Triassic (247.2 - 635 Ma)

Description: Undivided Paleozoic limestone, dolostone, quartzite, shale, and related sedimentary rocks. (248-544 Ma)

Comments: Original map source: Arizona Geological Survey, DI-8 Geologic Map of Arizona, Digital Spatial data for the Geologic Map of Arizona, v. 3.0, edited by S.M. Richard and S.M. Kneale, 2002, 10 p., 2 DOS HD disks. Arc/INFO export file (.e00) format, scale 1:1,000,000.

Lithology: Major:{limestone,dolostone,quartzite}, Minor:{shale}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License


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