Darwin Mines (Darwin group; Defiance; Driver; Independence; Lane; Liberty; Lucky Jim; Southwest and Thompson; Bernon; Rip Van Winkle; Mexicanus Colorado Inc.), Darwin, Darwin Mining District, Darwin Hills, Inyo Co., California, USAi
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Key
Latitude & Longitude (WGS84):
36° 16' 49'' North , 117° 35' 59'' West
Latitude & Longitude (decimal):
Locality type:
Group of Mines
Köppen climate type:
Nearest Settlements:
Place | Population | Distance |
---|---|---|
Olancha | 192 (2015) | 36.6km |
A group of former Pb-Zn-Ag-W-Cu-Au mines.
NOTE: This group of mines was leased by the firm Mexicanus Colorado Inc. during the early 1970's. The name is mis-spelled in the MRDS database and appears as "Mexicanus Colovgdo Inc A" under MRDS file #10188132, referencing the USGS Minerals Yearbook 1972: 26, 30.
The Company „Project Darwin LLC“ acquired the Darwin Mines and 58 patented mining claims in 1996. They have prepared a good description of these mines and their history and put it on a webpage (see under Links).
Mineralization is a polymetallic replacement deposit (Deposit Model: 72: Polymetallic replacement) hosted in rocks of the Portachuelo Formation (limestone, granodiorite).
Local structures include a thrust fault, igneous intrusions, faults, and folds.
Select Mineral List Type
Standard Detailed Gallery Strunz Dana Chemical ElementsDetailed Mineral List:
ⓘ Andradite Formula: Ca3Fe3+2(SiO4)3 Reference: Knopf, Adolf (1914a), The Darwin silver-lead mining district, California: USGS Bulletin 580: 1-18 |
ⓘ Calcite Formula: CaCO3 Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; WARING, C. A., 1915 , INYO COUNTY; 15TH REPT. STATE MINERALOGIST; CALIF. MIN. BUR., P. 95 |
ⓘ Cerussite Formula: PbCO3 Reference: WARING, C. A., 1915 , INYO COUNTY; 15TH REPT. STATE MINERALOGIST; CALIF. MIN. BUR., P. 95 |
ⓘ Chalcopyrite Formula: CuFeS2 Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
ⓘ Chrysocolla Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 Reference: WARING, C. A., 1915 , INYO COUNTY; 15TH REPT. STATE MINERALOGIST; CALIF. MIN. BUR., P. 95 |
ⓘ 'Clays' Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
ⓘ Fluorite Formula: CaF2 Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; WARING, C. A., 1915 , INYO COUNTY; 15TH REPT. STATE MINERALOGIST; CALIF. MIN. BUR., P. 95 |
ⓘ Franckeite Formula: Fe2+(Pb,Sn2+)6Sn4+2Sb2S14 Reference: Handbook of Mineralogy |
ⓘ Galena Formula: PbS Reference: WARING, C. A., 1915 , INYO COUNTY; 15TH REPT. STATE MINERALOGIST; CALIF. MIN. BUR., P. 95 |
ⓘ Guanajuatite Formula: Bi2Se3 Reference: Handbook of Mineralogy |
ⓘ Gypsum Formula: CaSO4 · 2H2O Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
ⓘ Jarosite Formula: KFe3+ 3(SO4)2(OH)6 Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
ⓘ Pyrite Formula: FeS2 Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
ⓘ Quartz Formula: SiO2 Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
ⓘ Quartz var. Jasper Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
ⓘ Sphalerite Formula: ZnS Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
ⓘ 'Tetrahedrite Subgroup' Formula: Cu6(Cu4C2+2)Sb4S12S Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
Group 2 - Sulphides and Sulfosalts | |||
---|---|---|---|
ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
ⓘ | Franckeite | 2.HF.25b | Fe2+(Pb,Sn2+)6Sn4+2Sb2S14 |
ⓘ | Galena | 2.CD.10 | PbS |
ⓘ | Guanajuatite | 2.DB.05 | Bi2Se3 |
ⓘ | Pyrite | 2.EB.05a | FeS2 |
ⓘ | Sphalerite | 2.CB.05a | ZnS |
ⓘ | 'Tetrahedrite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)Sb4S12S |
Group 3 - Halides | |||
ⓘ | Fluorite | 3.AB.25 | CaF2 |
Group 4 - Oxides and Hydroxides | |||
ⓘ | Quartz | 4.DA.05 | SiO2 |
ⓘ | var. Jasper | 4.DA.05 | SiO2 |
Group 5 - Nitrates and Carbonates | |||
ⓘ | Calcite | 5.AB.05 | CaCO3 |
ⓘ | Cerussite | 5.AB.15 | PbCO3 |
Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
ⓘ | Jarosite | 7.BC.10 | KFe3+3(SO4)2(OH)6 |
Group 9 - Silicates | |||
ⓘ | Andradite | 9.AD.25 | Ca3Fe3+2(SiO4)3 |
ⓘ | Chrysocolla | 9.ED.20 | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
Unclassified Minerals, Rocks, etc. | |||
ⓘ | 'Clays' | - |
List of minerals arranged by Dana 8th Edition classification
Group 2 - SULFIDES | |||
---|---|---|---|
AmXp, with m:p = 1:1 | |||
ⓘ | Galena | 2.8.1.1 | PbS |
ⓘ | Sphalerite | 2.8.2.1 | ZnS |
AmBnXp, with (m+n):p = 1:1 | |||
ⓘ | Chalcopyrite | 2.9.1.1 | CuFeS2 |
AmBnXp, with (m+n):p = 2:3 | |||
ⓘ | Guanajuatite | 2.11.2.4 | Bi2Se3 |
AmBnXp, with (m+n):p = 1:2 | |||
ⓘ | Pyrite | 2.12.1.1 | FeS2 |
Group 3 - SULFOSALTS | |||
ø > 4 | |||
ⓘ | Franckeite | 3.1.4.2 | Fe2+(Pb,Sn2+)6Sn4+2Sb2S14 |
3 <ø < 4 | |||
ⓘ | 'Tetrahedrite Subgroup' | 3.3.6.1 | Cu6(Cu4C2+2)Sb4S12S |
Group 9 - NORMAL HALIDES | |||
AX2 | |||
ⓘ | Fluorite | 9.2.1.1 | CaF2 |
Group 14 - ANHYDROUS NORMAL CARBONATES | |||
A(XO3) | |||
ⓘ | Calcite | 14.1.1.1 | CaCO3 |
ⓘ | Cerussite | 14.1.3.4 | PbCO3 |
Group 29 - HYDRATED ACID AND NORMAL SULFATES | |||
AXO4·xH2O | |||
ⓘ | Gypsum | 29.6.3.1 | CaSO4 · 2H2O |
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN | |||
(AB)2(XO4)Zq | |||
ⓘ | Jarosite | 30.2.5.1 | KFe3+ 3(SO4)2(OH)6 |
Group 51 - NESOSILICATES Insular SiO4 Groups Only | |||
Insular SiO4 Groups Only with cations in [6] and >[6] coordination | |||
ⓘ | Andradite | 51.4.3b.1 | Ca3Fe3+2(SiO4)3 |
Group 74 - PHYLLOSILICATES Modulated Layers | |||
Modulated Layers with joined strips | |||
ⓘ | Chrysocolla | 74.3.2.1 | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks | |||
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si | |||
ⓘ | Quartz | 75.1.3.1 | SiO2 |
Unclassified Minerals, Mixtures, etc. | |||
ⓘ | 'Clays' | - | |
ⓘ | Quartz var. Jasper | - | SiO2 |
List of minerals for each chemical element
H | Hydrogen | |
---|---|---|
H | ⓘ Jarosite | KFe3+ 3(SO4)2(OH)6 |
H | ⓘ Gypsum | CaSO4 · 2H2O |
H | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
C | Carbon | |
C | ⓘ Calcite | CaCO3 |
C | ⓘ Cerussite | PbCO3 |
O | Oxygen | |
O | ⓘ Quartz | SiO2 |
O | ⓘ Calcite | CaCO3 |
O | ⓘ Jarosite | KFe3+ 3(SO4)2(OH)6 |
O | ⓘ Gypsum | CaSO4 · 2H2O |
O | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
O | ⓘ Cerussite | PbCO3 |
O | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
F | Fluorine | |
F | ⓘ Fluorite | CaF2 |
Al | Aluminium | |
Al | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
Si | Silicon | |
Si | ⓘ Quartz | SiO2 |
Si | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
Si | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
S | Sulfur | |
S | ⓘ Sphalerite | ZnS |
S | ⓘ Pyrite | FeS2 |
S | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
S | ⓘ Chalcopyrite | CuFeS2 |
S | ⓘ Jarosite | KFe3+ 3(SO4)2(OH)6 |
S | ⓘ Gypsum | CaSO4 · 2H2O |
S | ⓘ Franckeite | Fe2+(Pb,Sn2+)6Sn24+Sb2S14 |
S | ⓘ Galena | PbS |
K | Potassium | |
K | ⓘ Jarosite | KFe3+ 3(SO4)2(OH)6 |
Ca | Calcium | |
Ca | ⓘ Fluorite | CaF2 |
Ca | ⓘ Calcite | CaCO3 |
Ca | ⓘ Gypsum | CaSO4 · 2H2O |
Ca | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
Fe | Iron | |
Fe | ⓘ Pyrite | FeS2 |
Fe | ⓘ Chalcopyrite | CuFeS2 |
Fe | ⓘ Jarosite | KFe3+ 3(SO4)2(OH)6 |
Fe | ⓘ Franckeite | Fe2+(Pb,Sn2+)6Sn24+Sb2S14 |
Fe | ⓘ Andradite | Ca3Fe23+(SiO4)3 |
Cu | Copper | |
Cu | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
Cu | ⓘ Chalcopyrite | CuFeS2 |
Cu | ⓘ Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
Zn | Zinc | |
Zn | ⓘ Sphalerite | ZnS |
Se | Selenium | |
Se | ⓘ Guanajuatite | Bi2Se3 |
Sn | Tin | |
Sn | ⓘ Franckeite | Fe2+(Pb,Sn2+)6Sn24+Sb2S14 |
Sb | Antimony | |
Sb | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
Sb | ⓘ Franckeite | Fe2+(Pb,Sn2+)6Sn24+Sb2S14 |
Pb | Lead | |
Pb | ⓘ Franckeite | Fe2+(Pb,Sn2+)6Sn24+Sb2S14 |
Pb | ⓘ Cerussite | PbCO3 |
Pb | ⓘ Galena | PbS |
Bi | Bismuth | |
Bi | ⓘ Guanajuatite | Bi2Se3 |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Butner, D.W. (1949), Investigation of tungsten occurrences in Darwin district, Inyo County, California: US Bureau Mines Report of Investigation 4475: 5.
Norman, L.A. & Richard M. Stewart (1951), Mines and mineral resources of Inyo County, California: California Journal of Mines and Geology: 47(1): 59-68.
Goodwin, Joseph Grant (1957) Lead and zinc in California. California Journal of Mines and Geology, Division of Mines: 53(3&4): 466.
Hall, Wayne Everett & E.M. Mackevett (1958), Economic geology of the Darwin quadrangle, Inyo County, California: Calif Division of Mines Special Report 51, 77 pp.: 25-30, 37-40.
U.S. Bureau of Mines Minerals Yearbook (1972): 26, 30.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10188132.
Mineral Availability System (MAS) file #0060270687 (Darwin District Tungsten).
Other Databases
Link to USGS MRDS: | 10188132 |
---|
External Links
http://www.projectdarwin.net/ (Status and History of Darwin Mines)
Other Regions, Features and Areas containing this locality
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Darwin Mines, Darwin, Darwin Mining District, Darwin Hills, Inyo Co., California, USA