Copperopolis Mine (Melinda Jane drift; Mammoth; Amity group; Patented claims 1200 and 1246), Copperopolis, Castle Creek Mining District, Bradshaw Mountains (Bradshaw Range), Yavapai County, Arizona, USAi
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Latitude & Longitude (WGS84):
34° 4' 46'' North , 112° 27' 48'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Wickenburg | 6,806 (2017) | 27.4km |
| Morristown | 227 (2017) | 28.8km |
| Black Canyon City | 2,837 (2011) | 28.8km |
| Yarnell | 649 (2011) | 30.5km |
| Peeples Valley | 428 (2011) | 32.1km |
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 |
|---|---|---|
| Wickenburg Gem and Mineral Society | Wickenburg, Arizona | 27km |
| Black Canyon City Rock Club | Black Canyon City, Arizona | 29km |
| Daisy Mountain Rock & Mineral Club | Anthem, Arizona | 38km |
A former surface and underground Cu-Ag-Au-Pb mine located in the NW¼ sec. 34, T.9N., R.2W. (Copperopolis 7.5 minute topo map), 2 miles NE of Briggs on 5 or 7 claims at 3,200 feet of altitude. Owned by R.D.O. Johnson (1926). Claims extend into the E½E½NE¼ of sec. 33.
Mineralization is a post-Tertiary vein. Country rock consists of granite & pegmatite, greatly oxidized. The ledge seems to be 100 feet wide with many seams. It strikes N.60ºW. & dips SW. Below the outcrop the rock is andesite for 400 feet to where the so-called 'great lead vein' crosses. This zone is perhaps 75 feet wide. The ledge matter contains granitic material. Ore control was faulting and shearing. Ore concentration was oxidation at near surface. Alteration was minor Fe-staining.
Area structures include veins parallel to low-angle (less than 40 degree dip) faults which trend NW. Foliation in Precambrian schist trends N20E to N50E. Tertiary volcanics dip E and strike NW.
Workings include a 200 foot shaft on the upper outcrop (1880).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Anglesite Formula: PbSO4 |
| ⓘ Baryte Formula: BaSO4 References: |
| ⓘ Chalcocite Formula: Cu2S |
| ⓘ Chrysocolla Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 Colour: Bright blue |
| ⓘ Galena Formula: PbS References: |
| ⓘ Hematite Formula: Fe2O3 |
| ⓘ 'Limonite' References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcocite | 2.BA.05 | Cu2S |
| ⓘ | Galena | 2.CD.10 | PbS |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Anglesite | 7.AD.35 | PbSO4 |
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| 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 |
| O | Oxygen | |
| O | ⓘ Anglesite | PbSO4 |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| O | ⓘ Hematite | Fe2O3 |
| 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 | ⓘ Chalcocite | Cu2S |
| S | ⓘ Galena | PbS |
| Fe | Iron | |
| Fe | ⓘ Hematite | Fe2O3 |
| Cu | Copper | |
| Cu | ⓘ Chalcocite | Cu2S |
| Cu | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| Pb | Lead | |
| Pb | ⓘ Anglesite | PbSO4 |
| Pb | ⓘ Galena | PbS |
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Great Plains DomainDomain
- Southern Basin and RangeWide Rift
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