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Altata Mine (Cinco de Mayo Mine; Little Giant Mine; Antietam Mine), Chloride, Chloride Mining District, Wallapai Mining District, Cerbat Mountains (Cerbat Range), Mohave County, Arizona, USAi
Regional Level Types
Altata Mine (Cinco de Mayo Mine; Little Giant Mine; Antietam Mine)Mine
Chloride Mining DistrictMining District
Wallapai Mining DistrictMining District
Cerbat Mountains (Cerbat Range)Mountain Range
Mohave CountyCounty

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Latitude & Longitude (WGS84):
35° 24' 4'' North , 114° 10' 58'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
Chloride271 (2011)2.1km
So-Hi477 (2017)16.9km
Golden Valley8,370 (2011)20.1km
New Kingman-Butler12,134 (2011)20.4km
Clacks Canyon173 (2017)22.5km

A former Cu-Ag-Au-Pb-As-Mo occurrence/mine located in the NE¼NE¼NE¼ sec. 10 & in the NW¼NW¼NW¼ sec. 11, T23N, R18W, G&SRM, 1 mile SE of Chloride, on Bureau of Land Management administered and/or private land. Owned by J. Lowitz, New York (1957). Operated 1901-1948. The USGS MRDS database stated accuracy for this locality is 500 meters.

The Altata mine, one of the principal copper mines and one of the first mines worked in the district, is situated at the base of the mountains about 2 miles southeast of Chloride and about 100 feet above it and is easy of access. It is owned by the Altata Mining Company, of Chicago, and is steadily producing at a moderate rate.

The mine is developed principally by a main shaft and drifts to the depth of 180 feet. A large dump shows that considerable work has been done. The production is reported to have been about $200,000. The country rock is pre-Cambrian schist, striking N. 23° E. with vertical dip. The vein strikes- N. 40° W. and dips about 75° NE. Surface exposures indicate that it is not more than 2 or 3 feet thick, but it is reported to widen downward and to have contained a large body of good-grade ore near the surface, and also a similar one extending from the 130-foot level to a point below the 160-foot level.

The ore contains copper and silver in a quartz gangue, the copper occurring chiefly as bornite and being locally enriched by secondary chalcocite. Smelter returns show 32 carloads of the ore shipped some years ago to have averaged about $100 a ton, of which 20 per cent was copper and the rest silver. In the crosscut in the bottom of the mine a new vein, 20 feet thick, has recently been encountered with an 18-inch ore shoot on the hanging wall and a 24-inch shoot on the foot wall. The assay value of the ore varies from $12 to $15 a ton in gold, silver, and copper, and some similar ore is scattered across the intervening width of the vein

Mineralization is a vein deposit hosted in schist. The ore body strikes N40W, and dips 75NE at 0.91 meter wide. Mineralization is associated with a Lower Cretaceous porphyry intrusion. Precambrian schistosity strikes N30ºE. Veins, fissures and dikes strike NW to NNW regionally. Associated rocks include Late Cretaceous-Neoproterozoic granite. Local rocks include Early Proterozoic granitic rocks and/or Quaternary surficial deposits, undivided.

Workings include underground openings with an overall depth of 54.86 meters.

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

Mineral List

8 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Formula: Cu5FeS4
Reference: University of Arizona Bull. 41 (1916-17), Mineralogy of Useful Minerals in Arizona: 24.; Anthony, J. W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 142; Schrader, F.C. (1907), The Mineral Deps. of the Cerbat Range, Black Mts, & Grand Wash Cliffs, Mohave Co., AZ, USGS Bull. 397; Galbraith, F.W. (1947), Arizona Bureau of Mines Bull. 153, Minerals of AZ: 17.
Formula: CaCO3
Reference: MRDS file #1027816.
Formula: Cu2S
Reference: MRDS file #1027816.
Formula: Cu2O
Description: As rich & beautifully crystalline material.
Reference: Thomas, B.E. (1949), Ore Deps. of the Wallapai Dist., AZ, Economic Geology: 44:663-705; Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 196.
Formula: PbS
Reference: MRDS file #1027816.
Formula: MoS2
Reference: MRDS file #1027816.
Formula: FeS2
Reference: MRDS file #1027816.
Formula: ZnS
Reference: MRDS file #1027816.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Group 4 - Oxides and Hydroxides
Group 5 - Nitrates and Carbonates

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
AmBnXp, with (m+n):p = 3:2
AmXp, with m:p = 1:1
AmBnXp, with (m+n):p = 1:2

List of minerals for each chemical element

C CalciteCaCO3
O CupriteCu2O
O CalciteCaCO3
S BorniteCu5FeS4
S PyriteFeS2
S ChalcociteCu2S
S MolybdeniteMoS2
S GalenaPbS
S SphaleriteZnS
Ca CalciteCaCO3
Fe BorniteCu5FeS4
Fe PyriteFeS2
Cu CupriteCu2O
Cu BorniteCu5FeS4
Cu ChalcociteCu2S
Zn SphaleriteZnS
Mo MolybdeniteMoS2
Pb GalenaPbS


Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A) In-text Citation No.
Schrader, F.C. (1909), Mineral deposits of the Cerbat Range, Black Mountains, and the Grand Wash Cliffs, Mohave County, Arizona: USGS Bulletin 397: 71.
University of Arizona Bulletin 41 (1916-17), Mineralogy of Useful Minerals in Arizona: 24.
Willis, C. (1920), Arizona Mining Journal: August, 1920: 13.
Elsing, M.J. and Heineman, E.S. (1936) Arizona Metal Production, Arizona Bureau of Mines Bulletin 140: 95.
Galbraith, F.W. (1947), Arizona Bureau of Mines Bulletin 153, Minerals of Arizona: 17.
Thomas, B.E. (1949), Ore Deposits of the Wallapai District, Arizona, Economic Geology: 44: 663-705.
Dings, M.G. (1951), The Wallapai Mining District, Cerbat Mountains, Mohave County, Arizona, USGS Bulletin 978-E: 147.
Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 142 (as Atlanta Mine), 196.
U.S. Bureau of Mines (1995), Minerals Availability System/Mineral Industry Location System (MAS/MILS), U.S. Bureau of Mines, file ID #0040150318.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, deposit ID #10027816 & 10137592.
Arizona Department of Mineral Resources (ADMR), Mohave card file.
Mohave custom mill project card file.
USGS MRDS ID #M004166.

Other Databases

USGS MRDS Record:10137592

Other Regions, Features and Areas containing this locality

North America PlateTectonic Plate

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