Amargosa placers (Amargosa Arroyo placers; Tinaja Wash placers), Amargosa Arroyo, Continental, Tinaja Hills, Pima County, Arizona, USAi
| Regional Level Types | |
|---|---|
| Amargosa placers (Amargosa Arroyo placers; Tinaja Wash placers) | Group of Placers |
| Amargosa Arroyo | - not defined - |
| Continental | - not defined - |
| Tinaja Hills | Group of Hills |
| Pima County | County |
| Arizona | State |
| USA | Country |
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Latitude & Longitude (WGS84):
31° 50' 30'' North , 111° 7' 48'' West
Latitude & Longitude (decimal):
Type:
Group of Placers
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Green Valley | 21,391 (2011) | 12.9km |
| Arivaca Junction | 1,090 (2011) | 14.3km |
| Amado | 295 (2011) | 16.1km |
| Sahuarita | 25,707 (2017) | 20.9km |
| East Sahuarita | 1,622 (2006) | 22.1km |
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 |
|---|---|---|
| Old Pueblo Lapidary Club | Tucson, Arizona | 46km |
| Tucson Gem and Mineral Society | Tucson, Arizona | 46km |
‡Ref.: Arizona Bureau of Mines Bull. 135 (1933), Arizona Gold Placers & Placering: 64.
Wilson, E.D. (1952), Arizona gold placers and placering (Fifth edition revised): Arizona Bureau of Mines Bull. 160: 80-81.
Johnson, M.G. (1972), Placer gold deposits of Arizona, USGS Bull. 1355, 103p.: 39.
MRDS database Dep. ID file #10108972, MRDS ID #M000311.
A former small surface Au placer deposit area located in certain portions of secs. 20, 21, 28 & 29, T.18S., R.12E., in the upper course of the Amargosa Arroyo, 6 miles West of Continental, and 6 miles SW of Twin Buttes.
Mineralization is a placer gold deposit in fine-grained gravels in an arroyo. The placer gold is associated with abundant magnetitic sand. Assay (1952) yielded 80 cents Au/ton, 0.8 oz Ag/ton, 0.5 % Pb, 0.5 % Zn.
Production unknown.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsGallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold | 1.AA.05 | Au |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| Fe | Iron | |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
| Au | Gold | |
| Au | ⓘ Gold | Au |
Other Databases
| Link to USGS MRDS: | 10108972 |
|---|
Other Regions, Features and Areas containing this locality
Mexico
- Sierra Madre OccidentalMountain Range
North AmericaContinent
- Sonoran DesertDesert
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mojave DomainDomain
- Southern Basin and RangeWide Rift
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