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Snyder Hill Mine (Snyder Hill prospect), Snyder Hill, Amole District, Tucson Mts, Pima Co., Arizona, USA

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Latitude & Longitude (WGS84): 32° 9' 23'' North , 111° 6' 47'' West
Latitude & Longitude (decimal): 32.15639,-111.11306
GeoHash:G#: 9t8yztcuw
Locality type:Mine
Köppen climate type:BSh : Hot semi-arid (steppe) climate

‡Ref.: Kinnison, J.E. (1958) Geology and ore deposits of the southern section of the Amole mining district, Tucson Mountains, Pima County, Arizona: Tucson, University of Arizona, M.S. thesis, 126 p.

Ashley, R.P. (1974), Field Examination (Snyder Hill prospect).

Keith, Stanton B. (1974), Arizona Bureau of Geology & Mineral Technology, Geological Survey Branch Bull. 189, Index of Mining Properties in Pima County, Arizona: 103 (Table 4).

Elevatorski, E.A. (1978), Arizona Industrial Minerals, Arizona Department of Mineral Resources, Minerals Report No. 2: 49.

Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd. ed.: 136, 381.

Arizona Bureau of Mines file data.

MRDS database Dep. ID file #10039673, MRDS ID #M050627; and, Dep. ID #10162069, MAS ID #0040190409.

A former small surface and underground Pb-Ag-Au-Baryte prospect located in West-central sec. 3, T.15S., R.12E. Produced 1922. Operated by R.W. Scharf.

Mineralization is small, local replacement pockets of argentiferous galena, silver halides, and barite in Permian limestone. Alteration is silicification. Only a little galena observed. Small veins approximately parallel, and subsidiary to, the main vein, are evident in pits N and NE of the main vein. Calcite veins and fine-grained quartz occur in the ore zone. The ore is 120 meters long and 1.5 meters wide. It strikes N10W and dips 50E.

Workings included 6 shafts, 1 adit (on the N end of the vein),a shallow pit, and several pits within 150 meters to the north and NE of the main vein (east side of Snyder Hill) which are small showings of vein material. In 1922, this site produced some 15 tons of picked ore averaging about 5% Pb, 301 oz. Ag/T and 0.1 oz. Au/T.

Alternative Label Names

This is a list of additional names that have been recorded for mineral labels associated with this locality in the minID database. This may include previous versions of the locality name hierarchy from, data entry errors, and it may also include unconfirmed sublocality names or other names that can only be matched to this level.

Snyder Hill Mine, Tucson Mnts., Pima Co, Arizona, USA
Snyder Hill Mine, Tucson Mts, Pima Co., Arizona, USA

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: BaSO4
Reference: Ref.: Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 103 (Table 4); Arizona Bureau of Mines file data.
Formula: Pb2Sb2O6O
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 136.
Formula: CaCO3
Reference: MRDS database Dep. ID file #10039673, MRDS ID #M050627.
Formula: PbCO3
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 136.
Formula: AgCl
Reference: Ref.: Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 103 (Table 4); Arizona Bureau of Mines file data.
Formula: PbS
Reference: Ref.: Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 103 (Table 4); Arizona Bureau of Mines file data.
Formula: Ag2Sb2(O,OH)7
Reference: Anthony, J.W., et al (1995), Mineralogy of Arizona, 3rd.ed.: 381.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Group 3 - Halides
Group 4 - Oxides and Hydroxides
Group 5 - Nitrates and Carbonates
Group 7 - Sulphates, Chromates, Molybdates and Tungstates

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1

List of minerals for each chemical element

H StetefeldtiteAg2Sb2(O,OH)7
C CalciteCaCO3
C CerussitePbCO3
O BaryteBaSO4
O BindheimitePb2Sb2O6O
O CalciteCaCO3
O CerussitePbCO3
O StetefeldtiteAg2Sb2(O,OH)7
S BaryteBaSO4
S GalenaPbS
Cl ChlorargyriteAgCl
Ca CalciteCaCO3
Ag ChlorargyriteAgCl
Ag StetefeldtiteAg2Sb2(O,OH)7
Sb BindheimitePb2Sb2O6O
Sb StetefeldtiteAg2Sb2(O,OH)7
Ba BaryteBaSO4
Pb BindheimitePb2Sb2O6O
Pb CerussitePbCO3
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

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: 2842956
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)

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, used under Creative Commons Attribution 4.0 License

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