Lane Mine (Sorba Mine), Darwin Mine (Anaconda; Bernon Mine; Defiance Mine; Essex Mine; Independence Mine; Intermediate Mine; Rip Van Winkle Mine; Thompson Mine), Darwin, Darwin Mining District, Darwin Hills, Inyo County, California, USAi
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Latitude & Longitude (WGS84):
36° 16' 48'' North , 117° 34' 23'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Mindat Locality ID:
79044
Long-form identifier:
mindat:1:2:79044:3
GUID (UUID V4):
bc73de62-b6ea-4132-b13c-9cee40b1b16f
A former Au-Cu-Ag-Pb mine located in sec. 18, T19S, R41E, MDM, 1.3 miles NE of Darwin. The mine was discovered before 1880. MRDS database stated accuracy for this location is 10 meters. Updated description and position N36.27990 W117.57296 by Richard Muster.
NOTE: This is one of several mines incorporated into the "Darwin Mine" of the Anaconda Corp. It was also later incorporated into the group termed the "Darwin Mines," owned by Mexicanus Colorado Inc.
In 1945 The Anaconda Co. purchased the Bernon Defiance, Driver, Essex, Independence, Lane, Lucky Jim, Promontory, Rip Van Winkle and Thompson mines, and other small properties In the Darwin quadrangle and the Columbia mine at the south end of the Darwin Hills in the Coso Peak quadrangle, and they have operated some of them from 1945 to 1955.
The Company βProject Darwin LLCβ acquired the Darwin mines and 58 patented mining claims in 1996. The company is looking for investors to re-start the Darwin mines.
Rocks at the mine consist of lime-silicate strata interbedded with dark-blue crinoidal and fusulina-bearing limestones. Local rocks include Carboniferous marine rocks, unit 2 (SE California Carbonate Assemblage).
Workings include underground openings comprised of 2 shafts at 800 and 600 feet deep, and 2 shallower shafts west of the main shafts, which were worked until 1909. Then an adit was driven about 1,300 feet long. The shafts are now inaccessible.
The Lane mine has a recorded production of 11,944 tons from which was recovered: 1,547 ounces Au; 75,866 ounces Ag (6.3 ounces/ton); 38,738 pounds Cu, and 1,820,888 pounds Pb. The total production was probably greater than the above figures because for some years it was included in the Darwin group.
The Lane Mill is nearby at N 36.281821 W 117.571138. It was built in 1898, re-built several times and was in operation till 1942.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| β Calcite Formula: CaCO3 |
| β Cerussite Formula: PbCO3 |
| β Chrysocolla Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| β Fluorite Formula: CaF2 |
| β Galena Formula: PbS |
| β 'Jasper' |
| β Quartz Formula: SiO2 |
| β Scheelite Formula: Ca(WO4) |
| β Silver Formula: Ag Description: Occurs as thin sheets. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| β | Silver | 1.AA.05 | Ag |
| Group 2 - Sulphides and Sulfosalts | |||
| β | Galena | 2.CD.10 | PbS |
| Group 3 - Halides | |||
| β | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| β | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| β | Calcite | 5.AB.05 | CaCO3 |
| β | Cerussite | 5.AB.15 | PbCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| β | Scheelite | 7.GA.05 | Ca(WO4) |
| Group 9 - Silicates | |||
| β | Chrysocolla | 9.ED.20 | Cu2-xAlx(H2-xSi2O5)(OH)4 Β· nH2O, x < 1 |
| Unclassified | |||
| β | 'Jasper' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| C | Carbon | |
| C | β Calcite | CaCO3 |
| C | β Cerussite | PbCO3 |
| O | Oxygen | |
| O | β Calcite | CaCO3 |
| O | β Cerussite | PbCO3 |
| O | β Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| O | β Quartz | SiO2 |
| O | β Scheelite | Ca(WO4) |
| F | Fluorine | |
| F | β Fluorite | CaF2 |
| Al | Aluminium | |
| Al | β Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Si | Silicon | |
| Si | β Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Si | β Quartz | SiO2 |
| S | Sulfur | |
| S | β Galena | PbS |
| Ca | Calcium | |
| Ca | β Calcite | CaCO3 |
| Ca | β Fluorite | CaF2 |
| Ca | β Scheelite | Ca(WO4) |
| Cu | Copper | |
| Cu | β Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Ag | Silver | |
| Ag | β Silver | Ag |
| W | Tungsten | |
| W | β Scheelite | Ca(WO4) |
| Pb | Lead | |
| Pb | β Cerussite | PbCO3 |
| Pb | β Galena | PbS |
Other Databases
| Link to USGS MRDS: | 10188099 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Antler Foreland BasinBasin
- Basin and Range BasinsBasin
- Mojave DomainDomain
USA
- Sierra NevadaMountain Range
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References
