Regional Report: Mammoth District, Pinal Co., Arizona, USA

This district is located in T8S, R16E, and centers around the Mammoth-St. Anthony mine (Tiger), about 3 miles SW of the town of Mammoth. It is sometimes considered part of the Old Hat District. This is principally a gold mining district; however, much lead was mined. During WWII the Mammoth-St. Anthony was worked for vanadium and molybdenum as well. The total production was about $3 million, mostly in gold. This area is at about 3,200 feet of altitude. The host rock is a coarse granite (the Oracle Granite), presumably of Pre-Cambrian age; Mesozoic or Tertiary breccia & conglomerate, largely of andesitic to dacitic material; rhyolite, in part at least intrusive, probably of Tertiary age; and Pliocene Gila Conglomerate. All of these are rather intensely faulted. Veins in the District occur within shear zones which strike WNW-ward & dip steeply SW-ward. Gangue consists of brecciated country rock, cemented & replaced by quartz and calcite together with some barite and fluorite.

For full locality listing click here. Alternatively: Click here for heirarchical list of localities in Mammoth District, Pinal Co., Arizona, USA

Acanthite - 12

'Adularia' - 12

Alamosite - 12

'Albite-Anorthite Series' - 12

Allophane - 12, 6

Amesite - 12

'Amethyst' - 12, 24

Anglesite - 12, 15

Antigorite - 12

'Apatite' - 12

Atacamite - 12, 4

Aurichalcite - 12

Azurite - 12

Baryte - 12, 33

Beaverite - 12

Bideauxite - 12

Biotite - 12

Boleite - 12, 4

Bornite - 12

Brochantite - 12, 15

'Bromian Chlorargyrite' - 12

Calcite - 12, 15, 5, 33, 8

Caledonite - 12, 4

Celadonite - 5

Cerussite - 12, 29, 4

'Chabazite' - 5

Chalcanthite - 12

Chalcocite - 12, 15, 27

Chalcopyrite - 12, 15

'Chalcotrichite' - 12

Chlorargyrite - 4

'Chlorite Group' - 12, 15, 4

'Chromian Leadhillite' - 12

Chrysocolla - 12, 6, 17, 8, 31

Connellite - 12

Covellite - 12

Creaseyite - 12

Crocoite - 12

'Cuprian Descloizite' - 15

Cuprite - 12, 8

Descloizite - 12

Devilline - 12

Diaboleite - 12, 11, 4

'Diatomaceous Earth' - 22

Dioptase - 12, 4

Djurleite - 12

Epidote - 12

Fluorite - 12, 15

Fornacite - 12

Fraipontite - 12

Galena - 12, 15

Goethite - 12

Gold - 12, 15, 24

Gypsum - 18

Hematite - 12, 15, 4, 8

Hemimorphite - 12, 15, 4

'Heulandite' - 12, 5

Hisingerite - 12

Hollandite - 12, 6

Hydrocerussite - 12, 4

Iodargyrite - 12

Iranite - 12

Leadhillite - 12, 4

Lepidocrocite - 12

Limonite - 15

Linarite - 12

Macquartite - 12

Magnetite - 12

Malachite - 12, 15, 17

Mammothite - 12

Matlockite - 12, 4

Melanotekite - 12

Microcline - 12

Mimetite - 12, 6

Minium - 12

Mixite - 12

Mottramite - 12, 6

Munakataite - 12

Murdochite - 12

Muscovite - 12

Orthoserpierite - 29

Palygorskite - 12

Paralaurionite - 12, 4

Paratacamite - 12

'Phillipsite' - 5

Phosgenite - 12, 4

Phosphohedyphane - 12

Pinalite - 12

Plancheite - 12

Plumbonacrite - 12, 4

Plumbotsumite - 12

Pseudoboleite - 12

'Psilomelane' - 33, 32

Pyrite - 12, 15

Pyrolusite - 15

Pyromorphite - 12

Quartz - 12, 15, 6

Queitite - 12

Ramsdellite - 12

Rosasite - 12

Scheelite - 27

Schorl - 27

'Sericite' - 15

'Serpentine Group' - 12

Shattuckite - 12

Silver - 12, 15

Smithsonite - 12

'Specularite' - 12

Sphalerite - 12, 15

'Stilbite' - 12

Stolzite - 12

Sulphur - 12

Surite - 12

Tenorite - 12, 17

Tetrahedrite - 12

'Tourmaline' - 12, 15

Tsumebite - 12

'Tungstenoan Wulfenite' - 12

Vanadinite - 12, 11, 15, 6, 28

'Wad' - 27

Wherryite - 12

Willemite - 12, 6

Wolframite - 27

Wulfenite - 12, 15, 6, 4, 17

Wurtzite - 12

Yedlinite - 12

126 minerals listed.

Locality Key

1	Black Beauty property, Tucson Wash, Mammoth, Mammoth District, Pinal Co., Arizona, USA
2	Bose Mine (Old Bose claims; Burson Mine), Signal Peak area, Black Hills, Mammoth District, Pinal Co., Arizona, USA
3	California Verde claims, Tucson Wash, Black Hills, Mammoth District, Pinal Co., Arizona, USA
4	Collins Mine (Collins vein; mammoth-Collins Mine), Mammoth-Saint Anthony Mine (Mammoth-St Anthony Mine; Mammoth Mine; St. Anthony Mine), St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
5	Copper Basin Railroad cut, Mammoth, Mammoth District, Pinal Co., Arizona, USA
6	Ford Mine (Ford property; Old Glory 1-5 claims; Mammoth Tiger Extension Mining Corp. property), Tucson Wash, Mammoth, Mammoth District, Pinal Co., Arizona, USA
7	Harve Hatcher Tiger claim, Mammoth District, Pinal Co., Arizona, USA
8	Hatch Mine (Harvey Hatcher Mine; Hatch group), Signal Peak area, Black Hills, Mammoth District, Pinal Co., Arizona, USA
9	Iron Oxide prospect, Signal Peak area, Black Hills, Mammoth District, Pinal Co., Arizona, USA
10	Little Joe group, Mammoth, Mammoth District, Pinal Co., Arizona, USA
11	Mammoth District, Pinal Co., Arizona, USA
12	Mammoth-Saint Anthony Mine (Mammoth-St Anthony Mine; Mammoth Mine; St. Anthony Mine), St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
13	Mammoth, Mammoth District, Pinal Co., Arizona, USA
14	Mohawk Extension property (Magma Copper Co. property; Quarelli property), Tucson Wash, Mammoth, Mammoth District, Pinal Co., Arizona, USA
15	Mohawk Mine (Mohawk-New Year Mine; Magma Copper Co. property; Mohawk Gold Mining Co. property), Mammoth-Saint Anthony Mine (Mammoth-St Anthony Mine; Mammoth Mine; St. Anthony Mine), St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
16	New Year Mine (Houghton property; Mohawk-New Year Mine), Mammoth-Saint Anthony Mine (Mammoth-St Anthony Mine; Mammoth Mine; St. Anthony Mine), St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
17	Pearl Mine (Pearl property; Pearl vein; Monarch group; Dripping Springs property; Cuba Mine; Magoris Mine; Matt Tar property), Signal Peak area, Mammoth, Black Hills, Mammoth District, Pinal Co., Arizona, USA

18	Pinal Mammoth Gypsum Mine (Thunderbird Mine), Aravaipa Creek area, Mammoth, Mammoth District, Pinal Co., Arizona, USA
19	Porphyry Exploration Co. property, Mammoth, Mammoth District, Pinal Co., Arizona, USA
20	Psilomelane prospect, Signal Peak area, Black Hills, Mammoth District, Pinal Co., Arizona, USA
21	Reynolds and Cline property, North Mammoth, Mammoth District, Pinal Co., Arizona, USA
22	San Pedro River, Mammoth area, Mammoth District, Pinal Co., Arizona, USA
23	Shultz Mine, Tiger, Mammoth District, Pinal Co., Arizona, USA
24	Smith property (T.M. Smith property), Mammoth, Mammoth District, Pinal Co., Arizona, USA
25	St. Anthony deposit, Tiger, Mammoth District, Pinal Co., Arizona, USA
26	Tar Mine, Mammoth, Mammoth District, Pinal Co., Arizona, USA
27	Tarr Mine (Tar Mine; Tarr property; Tarr Copper Mine; San Pedro Mine; Jameson and Ward Mine), Tarr Wash, Black Hills, Mammoth District, Pinal Co., Arizona, USA
28	Thunderbird Mine, Tucson Wash, Mammoth, Mammoth District, Pinal Co., Arizona, USA
29	Tiger, Mammoth District, Pinal Co., Arizona, USA
30	Unnamed copper prospect (11), Mammoth area, Mammoth District, Pinal Co., Arizona, USA
31	Unnamed copper prospect (47), Signal Peak area, Mammoth, Black Hills, Mammoth District, Pinal Co., Arizona, USA
32	Unnamed Manganese prospect (MRDS #10039505), Signal Peak area, Black Hills, Mammoth District, Pinal Co., Arizona, USA
33	Unnamed occurrence, Tucson Wash, Mammoth, Mammoth District, Pinal Co., Arizona, USA

The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database!