Copper World Mine, Clark Mountain, Clark Mountain District (Clark District), Clark Mts (Clark Mountain Range), San Bernardino County, California, USAi
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Latitude & Longitude (WGS84):
35° 30' 18'' North , 115° 36' 9'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Sandy Valley | 2,051 (2011) | 34.8km |
| Goodsprings | 229 (2011) | 39.4km |
| Baker | 735 (2011) | 50.4km |
Other/historical names associated with this locality:
Copper World; Copperworld Quartz Nos. 1 and 2; Ivanpah Copper; Dewey Ivanpah Mine; Old Ivanpah Copper Company
A former Cu-Pb-Ag-Au occurrence/mine located in sec. 5, T16N, R13E, SBM, 2.6 km (1.6 miles) SSW of Clark Mountain (summit) (coordinates of record), straddling the SW spur of Clark Mountain at about 1650 meters elevation and about 4 km. (air travel) N of Interstate 15, between Valley Wells Station and Mountain Pass, on private (patented) land. Since 1994, it has been included in the Mojave National Preserve, managed by the National Park Service. Operated during the periods 1906 to 1908, 1916 to 1918 and 1944. MRDS database stated accuracy for this location is 10 meters.
Mineralization is a vein deposit hosted in the Bully Hill rhyolite and Goodsprings dolomite. The ore body is irregular in form, strikes N40W and dips 50SW at a thickness of 2.44 meters and width of 60.96 meters. Copper minerals are associated with bodies of silicate minerals formed as alterations of Goodspring dolomite near sill-like bodies of quartz monzonite. The dolomite is widely exposed on the West side of Clark Mountain with a general NW strike and SW dip. It is highly deformed in the mine area. Associated rocks include Late Cretaceous quartz monzonite. Local rocks include Cambrian marine rocks.
Workings include surface and underground openings. The Copper World workings are comprised of a series of large open cuts at 5,180 feet. The main tunnel is driven N40W for 753 feet, and drifts SW for 100 feet where a winze was sunk on the contact to a depth of 75 feet. A crosscut was driven N40E for 40 feet at the bottom of the winze. There are over 2,000 feet of crosscuts and drifts at this level. 45 feet above the main tunnel is another tunnel 600 feet in length. The Dewey workings include 4 tunnels with the upper tunnel driven NW for 125 feet and stoped to surface for 75 feet. 25 feet below is an open cut and 50 foot tunnel. Below this is a NW tunnel 75 feet long with the ore stoped out to the tunnel above. The lower tunnel was driven N65W for 180 feet, then drifted NW 100 feet to a 75 foot winze.
Production data are found in: Goodwin, Joseph Grant (1957).
The main production occurred during the period 1917 to 1920, when smelter recovery averaged 6.75% Cu, 10% Pb, 5.8 ounces Ag/ton plus some Au.
Analytical data results: low-grade ore 2% Cu.
The Dewey Mine could be considered part of the Copper World Mine but they were distinctly separate mining operations over 300 meters apart. Also there are several mineral reports that give differing results for each locality. The MRDS reports them as separate entities. Wright (1953) reports that they were both owned by the Ivanpah Copper Company.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Augite Formula: (CaxMgyFez)(Mgy1Fez1)Si2O6 Colour: Pistachio-green, greenish gray to pale brown Description: Occurs in masses. |
| ⓘ Augite var. Fassaite Formula: (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6] Colour: Pistachio-green, greenish gray to pale brown Description: Occurs in masses. |
| ⓘ Azurite Formula: Cu3(CO3)2(OH)2 |
| ⓘ Brochantite ? Formula: Cu4(SO4)(OH)6 References: Paul M. Adams CollectionIdentified by Paul M. Adams: Visual Identification |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Formula: Mg5(SiO4)2F2 Description: Reference only cites Chondrodite at the Dewey Mine. |
| ⓘ Chrysocolla Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| ⓘ ' Description: Reference only cites Deweylite at the Dewey Mine. |
| ⓘ Diopside Formula: CaMgSi2O6 |
| ⓘ Dolomite Formula: CaMg(CO3)2 |
| ⓘ Hemimorphite Formula: Zn4Si2O7(OH)2 · H2O References: Paul M. Adams CollectionIdentified by Paul M. Adams: Visual Identification |
| ⓘ Linarite ? Formula: PbCu(SO4)(OH)2 Description: On page 212 of Rocks & Minerals 81, Linarite is mentioned as coming from the Copper World Mine and references Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189, but gives no page number. Searching for every occurrence to Linarite in Murdoch & Webb (1966), I could find no validation for this citation. (WW Besse, 2017) References: |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
| ⓘ Formula: CaMg(SiO4) Description: Reference only cites Monticellite at the Dewey Mine. |
| ⓘ Spinel Formula: MgAl2O4 Colour: Black Description: Occurs as granular masses and small crystals. |
| ⓘ Formula: Ca3(SO4)[Si(OH)6](CO3) · 12H2O Colour: White Description: Reference only cites Thaumasite at the Dewey Mine. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Spinel | 4.BB.05 | MgAl2O4 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Dolomite | 5.AB.10 | CaMg(CO3)2 |
| ⓘ | Azurite | 5.BA.05 | Cu3(CO3)2(OH)2 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Brochantite ? | 7.BB.25 | Cu4(SO4)(OH)6 |
| ⓘ | Linarite ? | 7.BC.65 | PbCu(SO4)(OH)2 |
| ⓘ | Thaumasite ? | 7.DG.15 | Ca3(SO4)[Si(OH)6](CO3) · 12H2O |
| Group 9 - Silicates | |||
| ⓘ | Monticellite ? | 9.AC.10 | CaMg(SiO4) |
| ⓘ | Chondrodite ? | 9.AF.45 | Mg5(SiO4)2F2 |
| ⓘ | Hemimorphite | 9.BD.10 | Zn4Si2O7(OH)2 · H2O |
| ⓘ | Augite | 9.DA.15 | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| ⓘ | Diopside | 9.DA.15 | CaMgSi2O6 |
| ⓘ | Augite var. Fassaite | 9.DA.15 | (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6] |
| ⓘ | Chrysocolla | 9.ED.20 | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Unclassified | |||
| ⓘ | 'Deweylite' ? | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| H | ⓘ Brochantite | Cu4(SO4)(OH)6 |
| H | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| H | ⓘ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| H | ⓘ Linarite | PbCu(SO4)(OH)2 |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| H | ⓘ Thaumasite | Ca3(SO4)[Si(OH)6](CO3) · 12H2O |
| C | Carbon | |
| C | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| C | ⓘ Dolomite | CaMg(CO3)2 |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | ⓘ Thaumasite | Ca3(SO4)[Si(OH)6](CO3) · 12H2O |
| O | Oxygen | |
| O | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| O | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| O | ⓘ Brochantite | Cu4(SO4)(OH)6 |
| O | ⓘ Chondrodite | Mg5(SiO4)2F2 |
| O | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| O | ⓘ Diopside | CaMgSi2O6 |
| O | ⓘ Dolomite | CaMg(CO3)2 |
| O | ⓘ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| O | ⓘ Linarite | PbCu(SO4)(OH)2 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | ⓘ Monticellite | CaMg(SiO4) |
| O | ⓘ Spinel | MgAl2O4 |
| O | ⓘ Thaumasite | Ca3(SO4)[Si(OH)6](CO3) · 12H2O |
| O | ⓘ Augite var. Fassaite | (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6] |
| F | Fluorine | |
| F | ⓘ Chondrodite | Mg5(SiO4)2F2 |
| Na | Sodium | |
| Na | ⓘ Augite var. Fassaite | (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6] |
| Mg | Magnesium | |
| Mg | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Mg | ⓘ Chondrodite | Mg5(SiO4)2F2 |
| Mg | ⓘ Diopside | CaMgSi2O6 |
| Mg | ⓘ Dolomite | CaMg(CO3)2 |
| Mg | ⓘ Monticellite | CaMg(SiO4) |
| Mg | ⓘ Spinel | MgAl2O4 |
| Mg | ⓘ Augite var. Fassaite | (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6] |
| Al | Aluminium | |
| Al | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Al | ⓘ Spinel | MgAl2O4 |
| Al | ⓘ Augite var. Fassaite | (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6] |
| Si | Silicon | |
| Si | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Si | ⓘ Chondrodite | Mg5(SiO4)2F2 |
| Si | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Si | ⓘ Diopside | CaMgSi2O6 |
| Si | ⓘ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| Si | ⓘ Monticellite | CaMg(SiO4) |
| Si | ⓘ Thaumasite | Ca3(SO4)[Si(OH)6](CO3) · 12H2O |
| Si | ⓘ Augite var. Fassaite | (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6] |
| S | Sulfur | |
| S | ⓘ Brochantite | Cu4(SO4)(OH)6 |
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Linarite | PbCu(SO4)(OH)2 |
| S | ⓘ Thaumasite | Ca3(SO4)[Si(OH)6](CO3) · 12H2O |
| Ca | Calcium | |
| Ca | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Ca | ⓘ Diopside | CaMgSi2O6 |
| Ca | ⓘ Dolomite | CaMg(CO3)2 |
| Ca | ⓘ Monticellite | CaMg(SiO4) |
| Ca | ⓘ Thaumasite | Ca3(SO4)[Si(OH)6](CO3) · 12H2O |
| Ca | ⓘ Augite var. Fassaite | (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6] |
| Ti | Titanium | |
| Ti | ⓘ Augite var. Fassaite | (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6] |
| Fe | Iron | |
| Fe | ⓘ Augite | (CaxMgyFez)(Mgy1Fez1)Si2O6 |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Augite var. Fassaite | (Ca,Na)(Mg,Fe2+,Al,Fe3+,Ti)[(Si,Al)2O6] |
| Cu | Copper | |
| Cu | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| Cu | ⓘ Brochantite | Cu4(SO4)(OH)6 |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Cu | ⓘ Linarite | PbCu(SO4)(OH)2 |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
| Zn | Zinc | |
| Zn | ⓘ Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| Pb | Lead | |
| Pb | ⓘ Linarite | PbCu(SO4)(OH)2 |
Other Databases
| Link to USGS MRDS: | 10034036 |
|---|
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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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file #0060711269
Copper World Mine, Clark Mountain, Clark Mountain District, Clark Mts, San Bernardino County, California, USA