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Gold Bullion Mine (Banes 1 & 2 claims; Banes claims; Last Chance claim group; Tellurium claim group), Weaver Canyon, Baboquivari District, Baboquivari Mts, Pima Co., Arizona, USA

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Latitude & Longitude (WGS84): 31° 43' 26'' North , 111° 35' 51'' West
Latitude & Longitude (decimal): 31.72389,-111.59750
GeoHash:G#: 9t8skx1jj
Locality type:Mine
Köppen climate type:BSh : Hot semi-arid (steppe) climate

‡Ref.: Joseph, P.E. (1915-1916) Molybdenum - Second edition: Arizona Bureau of Mines Bulletin no. 5, 15 p.

University of Arizona Bull. 41 (1916-17), Mineralogy of Useful Minerals in AZrizona: 46.

Wilson, E.D., Cunningham, J.B., and Butler, G.M. (1934), Arizona Lode Gold Mines and Gold Mining (revised 1967), Arizona Bureau of Mines Bull. 137: 181.

Galbraith, F.W. (1947), Minerals of Arizona, Arizona Bureau of Mines Bull. 153: 24.

Donald, P.G. (1958) Geology of the Fresnal Peak area, Baboquivari Mountains, Arizona: Tucson, University of Arizona, M.S. thesis, 45 p.

Kirkemo, H., Anderson, C.A., and Creasey, S.C. (1965) Investigations of molybdenum deposits in the conterminous United States, 1942-60: U.S. Geological Survey Bulletin 1182-E, 90 p., 7 sheets: E10-E11.

Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 109 (Table 4).

Nowlan, G.A., Haxel, G.B., Hanna, W.F., Pitkin, J.A., Diveley-White, D.V., McDonnell, J.R., Jr., and Lundby, W. (1989) Mineral resources of the Baboquivari Peak and Coyote Mountains Wilderness Study Areas, Pima County, Arizona, Chapter E, in Mineral resources of Wilderness Study Areas: Southwestern and south-central Arizona: U.S. Geological Survey Bulletin 1702-E, p. E1-E30.

Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 301.

Arizona Bureau of Mines file data.

MRDS database Dep. ID file #10039527, MRDS ID #M050222; and, Dep. ID #10113523, MAS ID #0040190232.

A former small underground Au-Ag-Cu-Pb-Zn-Mo-W-V mine located on 2 claims (Banes 1 & Bames 2), in South-central sec. 35, T.19S., R.7E. & the North-central sec. 2, T.20S., R.7E, on the north side of Weaver Canyon, about 7 miles west of the highway and about 3 miles from Baboquivari Peak. Discovered and first produced in 1885. Owned by H.E. Heighton. Owned/operated at times, or in part, by the Gold Bullion Mines Co.; the Gold Bullion Consolidated Mining Co.; and, Moore.

Mineralization is sporadic pockets of auriferous pyrite with minor sulfides that are partly oxidized, along fault-fissures, bedding plane faults, and in strong quartz veins or pegmatites in metamorphosed Cretaceous sedimentary bed, strongly altered and cut by intrusive dikes. The ore body is 441.96 meters long, 2.44 meters wide, 3.66 meters thick with 16.76 meters to the tiop of the ore body from surface and 68.58 meters to its bottom. The body strikes N70W and dips 40-70N.

The country rock is aplitic granite cut by quartz veins that have considerable range in size and trend. The vein on which the 2 shafts were sunk strikes N.70ºW. and dips 70ºN. near the surface but flattens to 40ºN. below the 55 level. The vein pinches and swells; it is 8 feet wide on the 55 level of the western shaft.

Molybdenite was found only in the lower level in workings largely in the hanging wall of the main quartz vein. The molybdenite is assocated with quartz that forms narrow veins as much as 1 inch wide and 15 feet long. Faulting after the deposition of the molybdenite crushed the quartz and smeared the molybdenite. The veins, which grade into narrow gouge zones, strike NW & NE.

Local structures include fault fissures, bedding plane faults, and some post-mineralization faulting; crushed quartz.

Workings include a 270 foot deep shaft and underground workings. The inclined shaft was sunk to about 225 between 1906 and 1910, connecting to two drifts. A second shaft connects with the upper of the two levels. Intermittent gold production occurred in the 1880's, from about 1910 to 1918, and in 1939. Some 3,100 or more tons of ore were produced, averaging about 1.0 oz. Au/T, 12 oz. Ag/T and minor Cu and Pb. Several 100 tons of high-grade molybdenum ore were shipped in 1916, which was mined from a stope 20 feet high, 40 feet long, and 6 to 10 feet wide (the 'molybdenite' stope), which is the largest stope. The Mo ore was mined out and finding additional pockets was considered too hard.

Regions containing this locality

Sonoran Desert, North America

Desert - 1,135 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List

5 valid minerals.

Detailed Mineral List:

Formula: CuFeS2
Reference: Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 109 (Table 4); Arizona Bureau of Mines file data.
Formula: PbS
Reference: Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 109 (Table 4); Arizona Bureau of Mines file data.
Formula: MoS2
Description: Occurs in quartz veins.
Reference: Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 109 (Table 4); Univ. AZ Bull. 41 (1916-17), Mineralogy of Useful Minerals in AZ: 46; Galbraith, F.W. (1947), Minerals of AZ, AZ Bur. Mines Bull. 153: 24; Kirkemo, Anderson & Creasen (1965): 10-11; Arizona Bureau of Mines file data.
Formula: FeS2
Reference: Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 109 (Table 4); Arizona Bureau of Mines file data.
Pyrite var: Auriferous Pyrite
Formula: FeS2
Reference: Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 109 (Table 4); Arizona Bureau of Mines file data.
Formula: ZnS
Reference: Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 109 (Table 4); Arizona Bureau of Mines file data.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
var: Auriferous Pyrite2.EB.05aFeS2

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
AmBnXp, with (m+n):p = 1:1
AmBnXp, with (m+n):p = 1:2
Unclassified Minerals, Rocks, etc.
var: Auriferous Pyrite-FeS2

List of minerals for each chemical element

S Pyrite (var: Auriferous Pyrite)FeS2
S ChalcopyriteCuFeS2
S GalenaPbS
S MolybdeniteMoS2
S PyriteFeS2
S SphaleriteZnS
Fe Pyrite (var: Auriferous Pyrite)FeS2
Fe ChalcopyriteCuFeS2
Fe PyriteFeS2
Cu ChalcopyriteCuFeS2
Zn SphaleriteZnS
Mo MolybdeniteMoS2
Pb GalenaPbS

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]

Tithonian - Bajocian
145 - 170.3 Ma

ID: 2847726
Jurassic sedimentary and volcanic rocks

Age: Jurassic (145 - 170.3 Ma)

Stratigraphic Name: Gardner Canyon Formation; Rudolfo Redbeds; Recreation Red Beds; Topawa Group; Harquar Formation

Description: Sandstone and conglomerate derived from volcanic rocks with associated intermediate-composition lava flows, breccias, and tuffs. In southern Arizona this unit includes rocks of the Artesa sequence, Pitoikam Formation, Mulberry Wash volcanics, Rudolfo Red Beds, Recreation Red Beds, and Gardner Canyon Formation. In western Arizona it includes the Harquar Formation, rocks of Slumgullion, and related(?) unnamed units in the Kofa and Middle Mountains. This unit is characterized by maroon, brown, and purplish-gray volcanic-lithic sandstone and siltstone, with subordinate to abundant conglomerate, quartz-rich sandstone and sparse limestone. (150-170 Ma)

Lithology: Major:{sandstone,siltstone,conglomerate}, Minor:{felsic volcanic,limestone}

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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