Amster prospect (Amster claim), Globe Hills Mining District, Gila County, Arizona, USAi
| Regional Level Types | |
|---|---|
| Amster prospect (Amster claim) | Prospect |
| Globe Hills Mining District | Mining Sub-district |
| Gila County | County |
| Arizona | State |
| USA | Country |
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Latitude & Longitude (WGS84):
33° 26' 14'' North , 110° 45' 2'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Copper Hill | 108 (2011) | 1.5km |
| Globe | 7,396 (2017) | 5.8km |
| Pinal | 439 (2011) | 6.8km |
| Central Heights-Midland City | 2,534 (2011) | 7.1km |
| Six Shooter Canyon | 1,019 (2017) | 8.1km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Gila County Gem & Mineral Society | Miami, Arizona | 12km |
Ref.: Farnham, L.L., Stewart, L.A., and Delong, C.W. (1961), Manganese Deposits of Eastern Arizona, US Bureau of Mines Information Circular 7990: 75.
MRDS database Dep. ID #10027364, MRDS ID #M002966; and Dep. ID #10112943, MAS ID #0040070041.
A former surface and underground Mn mine located in the SE¼SW¼ sec. 11, T1N, R15E, about 5 miles by road NE of Globe, on federal land. Discovered 1954. Formerly part of a group of claims belonging to the Superior and Boston Mining Co. Owned by Mrs. E. A. Borge (1961).
Mineralization is an irregular ore body hosted in limestone. Manganese minerals occur along a fracture zone cutting beds of the Mescal Limestone. The ore zone is 91.44 meters long, 1.83 meters wide, strikes N60W, and dips 80NE. An associated rock unit is diabase.
Another manganiferous occurrence, probably on the adjoining Morlay claims, crops out about 700 feet NE of the Amster opencut. The fracture strikes N50E and dips steeply NW. It has an exposed length of, or about 100 feet and the more highly mineralized parts are 1 to 4 feet wide.
Workings are 27.43 meters long, 1.83 meters wide and 6.1 meters deep.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsGallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Pyrolusite | 4.DB.05 | Mn4+O2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Unclassified | |||
| ⓘ | 'Wad' | - | |
List of minerals for each chemical element
| C | Carbon | |
|---|---|---|
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Pyrolusite | Mn4+O2 |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Mn | Manganese | |
| Mn | ⓘ Pyrolusite | Mn4+O2 |
Other Databases
| Link to USGS MRDS: | 10027364 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Sonoran DesertDesert
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mazatzal DomainDomain
- Southern Basin and RangeWide Rift
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