Neversweat Mining District (Palomas Mountains Mining District), Neversweat Ridge-Palomas Mountains, Yuma County, Arizona, USAi
| Regional Level Types | |
|---|---|
| Neversweat Mining District (Palomas Mountains Mining District) | Mining District |
| Neversweat Ridge-Palomas Mountains | Mountain Range |
| Yuma County | County |
| Arizona | State |
| USA | Country |
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Latitude & Longitude (WGS84):
33° North , 113° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~1km
Type:
Köppen climate type:
A Pb-Ag-Au-Cu-Ba-F mining district located in T4-5S, R12-15W, G&SRM, on Neversweat Ridge and in the Palomas Mountains.
Mineralization is varied: (1) Narrow baryte veins containing argentiferous galena with gypsum and minor copper in brecciated fault zones in Mesozoic schist; (2) Small amounts of oxidized copper mineralization in narrow, silicified and brecciated fault zones, with limonite, in Mesozoic granite and granite gneiss; and, (3) Small placer deposits of gold in washes, probably derived from gold-bearing quartz stringers.
Workings are scattered prospects and small mining operations, mostly dating back to the early 1900's and worked sporadically.
Production would be some 187 tons of ore containing about 21.5 tons of lead, 1,406 ounces of silver, 5 tons of copper and 14 ounces of gold. Placers yielded some 97 ounces of gold and 32 ounces of silver.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
Mineral list contains entries from the region specified including sub-localities11 valid minerals.
Detailed Mineral List:
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | var. Silver-bearing Galena | 2.CD.10 | PbS with Ag |
| Group 3 - Halides | |||
| ⓘ | Chlorargyrite | 3.AA.15 | AgCl |
| ⓘ | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Minium | 4.BD.05 | Pb3O4 |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Cerussite | 5.AB.15 | PbCO3 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Anglesite | 7.AD.35 | PbSO4 |
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
| ⓘ | var. Selenite | 7.CD.40 | CaSO4 · 2H2O |
| Group 9 - Silicates | |||
| ⓘ | Chrysocolla | 9.ED.20 | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Unclassified | |||
| ⓘ | 'Limonite' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| H | ⓘ Gypsum | CaSO4 · 2H2O |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| H | ⓘ Gypsum var. Selenite | CaSO4 · 2H2O |
| C | Carbon | |
| C | ⓘ Cerussite | PbCO3 |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Anglesite | PbSO4 |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Cerussite | PbCO3 |
| O | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| O | ⓘ Gypsum | CaSO4 · 2H2O |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Minium | Pb3O4 |
| O | ⓘ Gypsum var. Selenite | CaSO4 · 2H2O |
| F | Fluorine | |
| F | ⓘ Fluorite | CaF2 |
| Al | Aluminium | |
| Al | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Si | Silicon | |
| Si | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| S | Sulfur | |
| S | ⓘ Anglesite | PbSO4 |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Galena | PbS |
| S | ⓘ Gypsum | CaSO4 · 2H2O |
| S | ⓘ Gypsum var. Selenite | CaSO4 · 2H2O |
| S | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
| Cl | Chlorine | |
| Cl | ⓘ Chlorargyrite | AgCl |
| Ca | Calcium | |
| Ca | ⓘ Fluorite | CaF2 |
| Ca | ⓘ Gypsum | CaSO4 · 2H2O |
| Ca | ⓘ Gypsum var. Selenite | CaSO4 · 2H2O |
| Fe | Iron | |
| Fe | ⓘ Hematite | Fe2O3 |
| Cu | Copper | |
| Cu | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Ag | Silver | |
| Ag | ⓘ Chlorargyrite | AgCl |
| Ag | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| Pb | Lead | |
| Pb | ⓘ Anglesite | PbSO4 |
| Pb | ⓘ Cerussite | PbCO3 |
| Pb | ⓘ Galena | PbS |
| Pb | ⓘ Minium | Pb3O4 |
| Pb | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
Localities in this Region
- Arizona
- Yuma County
- Neversweat Ridge-Palomas Mountains
- Neversweat Mining District (Palomas Mountains Mining District)
- Neversweat Ridge-Palomas Mountains
- Yuma County
- Arizona
- Yuma County
- Neversweat Ridge-Palomas Mountains
- Neversweat Mining District (Palomas Mountains Mining District)
- Neversweat Ridge-Palomas Mountains
- Yuma County
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Sonoran DesertDesert
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mojave DomainDomain
- Southern Basin and RangeWide Rift
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References
(1933) Geology and Mineral Deposits of Southern Yuma County, Arizona. University of Arizona Bulletin 134. Arizona Bureau of Minespages 39, 42, 43, 128-130
Brobst, D. A. (1958) Barite resources of the United States. Bulletin 1072b. US Geological Survey doi:10.3133/b1072b p.106
