Mildred group, Mystery Hill Mine group, Swansea, Santa Maria Mining District (Planet Mining District; Swansea Mining District; Bill Williams Mining District), Buckskin Mountains, La Paz County, Arizona, USAi
| Regional Level Types | |
|---|---|
| Mildred group | - not defined - |
| Mystery Hill Mine group | - not defined - |
| Swansea | Town (Former) |
| Santa Maria Mining District (Planet Mining District; Swansea Mining District; Bill Williams Mining District) | Mining District |
| Buckskin Mountains | Mountain Range |
| La Paz County | County |
| Arizona | State |
| USA | Country |
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Latitude & Longitude (WGS84):
34° North , 113° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~1km
Köppen climate type:
A former Cu-Ag-Au-Pb-F (Se) mine located in T10N, R13W, GSRM, on federal wilderness land (Buckskin Mountains Wilderness area). Owned at times, or in part, by Graves; Rogers; Haydon and Farmosano; Quick; El Tigro Mining Co.; El Pluma Mines, Inc.; Townsend Mining Co.; French; Cononation Mining Co.; Boyd and Napel; and, Ore Concentrates, Inc.
Mineralization is copper carbonates and silicates, with local lead carbonate, in fissure veins associated with strong silicification and some epidote, fluorite and selenite, in altered Precambrian schist and gneiss along a fault zone. Scattered erosional remnants of Paleozoic limestone with intrusive plugs and dikes of Laramide monzonite containing Paleozoic limestone inclusions.
First worked in the late 1880's, and sporadically through 1945. This mine group produced over 500 tons of ore averaging about 3% Cu, 2 oz. Ag/T, 0.5% Pb, and 0.1 oz Au/T.
List of minerals for each chemical element
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mojave DomainDomain
- Southern Basin and RangeWide Rift
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