Clifton Copper Mines (San Jose; Copper Centre; Clifton gp; Standard gp; Standard Consolidated Copper Co.; Standard Mine; Standard Copper), Standard Gulch, Greenlee County, Arizona, USAi
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Latitude & Longitude (WGS84):
33° 6' 11'' North , 109° 21' 14'' West
Latitude & Longitude (decimal):
Type:
Group of Mines
Köppen climate type:
A former underground Cu-Ag-Mo-Gypsum mine located on 5 patented claims totalling 99 acres, in the NW¼NW¼ sec. 10, T4S, R29E, on the SE side of Standard Gulch which runs north of Markeen Mountain and into Chase Creek, 1.0 mile SE of the Metcalf site and 1.0 mile NE of the center of the Morenci open pit, on private land. Discovered in 1875 by the Arizona Copper Syndicate. Produced 1903-1911. Owned by the Phelps Dodge Corp., Morenci Branch (1952-____). Former operators included the Standard Consolidated Copper Co.; the Standard Copper Mines; and the Detroit Copper Mining Co. of Arizona.
Mineralization is an irregular ore body associated with Morenci Granite Porphyry. The ore zone is 1.22 meters wide. The contact of granite porphyry and granite country rock lies ¼ mile to the SE. The ore body is entirely contained in porphyry rock. Irregular ore bodies extend into porphyry from fissure vein. No well-defined vein is visible on the surface. Ore control was a NE-trending fissure. Ore concentration process was mineralizaton along a fissure vein as a result of metasmatic activity, with a secondary enrichment blanket. Alteration is oxidation to an unknown depth, chloritization of biotite, and extensive hydrothermal alteration.
Area structures include part of the First Great Fault Block south of the Coronado Massif; closely massed joint systems trending NE; and a fissure system trending NE. Monzonite porphyry is leached, whitened, and decomposed; fissures veins occur, in large, of impregnated and shattered porphyry.
Tectonic component is the first great fault block south of the Coronado Massif and the transition zone between the Basin and Range and Colorado Plateau Provinces.
Workings include 2 tunnels; a winze sunk from the lower tunnel; over 1.0 mile of underground workings.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
6 valid minerals.
Detailed Mineral List:
| ⓘ Brochantite Formula: Cu4(SO4)(OH)6 |
| ⓘ Chalcocite Formula: Cu2S |
| ⓘ 'Chlorite Group' |
| ⓘ Gypsum Formula: CaSO4 · 2H2O |
| ⓘ Kaolinite Formula: Al2(Si2O5)(OH)4 |
| ⓘ 'Limonite' |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 Habit: Fine, radiating groups of crystals |
| ⓘ Molybdenite Formula: MoS2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcocite | 2.BA.05 | Cu2S |
| ⓘ | Molybdenite | 2.EA.30 | MoS2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Brochantite | 7.BB.25 | Cu4(SO4)(OH)6 |
| ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
| Group 9 - Silicates | |||
| ⓘ | Kaolinite | 9.ED.05 | Al2(Si2O5)(OH)4 |
| Unclassified | |||
| ⓘ | 'Chlorite Group' | - | |
| ⓘ | 'Limonite' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Brochantite | Cu4(SO4)(OH)6 |
| H | ⓘ Gypsum | CaSO4 · 2H2O |
| H | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Brochantite | Cu4(SO4)(OH)6 |
| O | ⓘ Gypsum | CaSO4 · 2H2O |
| O | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Al | Aluminium | |
| Al | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Si | Silicon | |
| Si | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| S | Sulfur | |
| S | ⓘ Brochantite | Cu4(SO4)(OH)6 |
| S | ⓘ Chalcocite | Cu2S |
| S | ⓘ Gypsum | CaSO4 · 2H2O |
| S | ⓘ Molybdenite | MoS2 |
| Ca | Calcium | |
| Ca | ⓘ Gypsum | CaSO4 · 2H2O |
| Cu | Copper | |
| Cu | ⓘ Brochantite | Cu4(SO4)(OH)6 |
| Cu | ⓘ Chalcocite | Cu2S |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Mo | Molybdenum | |
| Mo | ⓘ Molybdenite | MoS2 |
Other Databases
| Link to USGS MRDS: | 10048130 |
|---|
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
USA
- Gila MountainsMountain Range
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References
(1909) A Manual of the Copper Industry of the World. The Copper Handbook Vol. 9. Horace J. Stevens p.533 - Clifton Copper Mines, Ltd.
(1911) A Manual of the Copper Industry of the World. The Copper Handbook Vol. 10. Horace J. Stevens p.1599 - Standard Consolidated Copper Co.
