Dunham Mine (Dunham and Centipede Mine; claim MS 1590), Kelvin, Riverside Mining District, Pinal County, Arizona, USAi
| Regional Level Types | |
|---|---|
| Dunham Mine (Dunham and Centipede Mine; claim MS 1590) | Mine |
| Kelvin | Unincorporated Community |
| Riverside Mining District | Mining District |
| Pinal County | County |
| Arizona | State |
| USA | Country |
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Latitude & Longitude (WGS84):
33° 6' 51'' North , 110° 58' 41'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Kearny | 2,038 (2017) | 8.9km |
| Hayden | 650 (2017) | 21.7km |
| Superior | 2,943 (2017) | 22.8km |
| Winkelman | 346 (2017) | 23.9km |
| Dudleyville | 959 (2011) | 24.5km |
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 | 33km |
A former surface and underground Cu-Ag-Au mine located on the Dunham patented claim in the SW¼NW¼ sec. 1, T4S, R13E (Kearny 7.5 minute topo map), about 0.2 miles W of Mineral Creek, about 1½ miles due W of Kelvin, on private land. Produced 1907 - 1941. Operated by Mr. James Herron. Previous operators include: I. Rogers; J.L. Dunham; and W.P. Dunham.
Mineralization is a vein deposit hosted in granite. Associated rock units are the Ruin (Oracle) Granite and rhyodacite porphyry. Area structures include a contact between Lower Cretaceous quartz diorite to the north and Precambrian granite to the south and E-W to ENE rhyodacite porphyry dikes and quartz latite dikes.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Chrysocolla Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| ⓘ 'Limonite' |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 5 - Nitrates and Carbonates | |||
|---|---|---|---|
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| 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 | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| 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 |
| Cu | Copper | |
| Cu | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
Other Databases
| Link to USGS MRDS: | 10048311 |
|---|
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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