Dorleska Mine, Preachers Peak, Klamath Mountains, Trinity Co., California, USAi
| Regional Level Types | |
|---|---|
| Dorleska Mine | Mine |
| Preachers Peak | Peak |
| Klamath Mountains | Mountain Range |
| Trinity Co. | County |
| California | State |
| USA | Country |
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Key
Latitude & Longitude (WGS84):
41° 3' 29'' North , 122° 54' 30'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Coffee Creek | 217 (2011) | 17.1km |
| Trinity Center | 267 (2011) | 19.4km |
| Weaverville | 3,600 (2011) | 36.5km |
| Junction City | 680 (2011) | 38.1km |
| Lewiston | 1,193 (2011) | 39.9km |
A former Au-Ag-Pb mine located in the SE¼ sec. 17 & in the NE¼NE¼ sec. 20, T37N, R9W, MDM, 0.7 km (2,100 feet) ESE of Preachers Peak (1.8 miles NW of Union Lake), on Bureau of Land Management land (Trinity Alps Wilderness). Discovered 1897-1898. First production was in 1899. MRDS database stated accuracy for this location is 100 meters.
Mineralization is hosted in lamprophyre, serpentinite, and schist. The ore body strikes N16E and dips 75W. Ore control was a fault zone. This deposit is an extension to the N of the same system of veins and lamprophyre dikes found in the Yellow Rose Mine. Local rocks include schist of various types and ages, unit 7 (Klamath Mountains).
Workings include underground openings. The old workings are caved. Some newer development work was done in the late 1930's with unknown results. There is a 350 foot deep shaft with 3 levels and a 50 foot deep winze, from the lowest of these it is said to extend 150 feet N and S into ore.
Production data are found in: MacDonald (1912).
Production statistics for 1926: $200,000 worth of Au (period values) was produced by 1926. No other production record was found.
Select Mineral List Type
Standard Detailed Strunz Dana Chemical ElementsDetailed Mineral List:
| ⓘ Galena Formula: PbS Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| ⓘ Gold Formula: Au Reference: U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| ⓘ Heazlewoodite Formula: Ni3S2 Description: Occurs as minute crystals in serpentine. Reference: Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 64. |
| ⓘ Hessite Formula: Ag2Te Reference: Hershey, Oscar H. (1899), The upper Coffee Creek mining district, California: Mining & Scientific Press: 79: 689; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 276; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 110. |
| ⓘ Nagyágite Formula: [Pb3(Pb,Sb)3S6](Au,Te)3 Reference: Hershey, Oscar H. (1899), The upper Coffee Creek mining district, California: Mining & Scientific Press: 79: 689; Osborne, H.Z. (1903), The Dorleska gold mine: Mining and Scientific Press: 7: 252; Stines, Norman S. (1907), The geology of the Coffee Creek mining district, California: Mining and Scientific Press: 95: 25-26; Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: 7th edition, revised and enlarged, 834pp.: 169. |
| ⓘ Petzite Formula: Ag3AuTe2 Reference: Osborne, H.Z. (1903), The Dorleska gold mine: Mining and Scientific Press: 7: 252; Stines, Norman S. (1907), The geology of the Coffee Creek mining district, California: Mining and Scientific Press: 95: 25-26; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 286; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 109. |
| ⓘ 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. |
| ⓘ 'Serpentine Subgroup' Formula: D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn Reference: Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 64. |
| ⓘ Sylvanite Formula: (Au,Ag)2Te4 Reference: Stines, Norman S. (1907), The geology of the Coffee Creek mining district, California: Mining and Scientific Press: 95: 25-26; Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 357; Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 110. |
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Heazlewoodite | 2.BB.05 | Ni3S2 |
| ⓘ | Hessite | 2.BA.60 | Ag2Te |
| ⓘ | Nagyágite | 2.HB.20a | [Pb3(Pb,Sb)3S6](Au,Te)3 |
| ⓘ | Petzite | 2.BA.75 | Ag3AuTe2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Sylvanite | 2.EA.05 | (Au,Ag)2Te4 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Unclassified Minerals, Rocks, etc. | |||
| ⓘ | 'Serpentine Subgroup' | - | D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn |
List of minerals arranged by Dana 8th Edition classification
| Group 1 - NATIVE ELEMENTS AND ALLOYS | |||
|---|---|---|---|
| Metals, other than the Platinum Group | |||
| ⓘ | Gold | 1.1.1.1 | Au |
| Group 2 - SULFIDES | |||
| AmBnXp, with (m+n):p = 2:1 | |||
| ⓘ | Hessite | 2.4.2.1 | Ag2Te |
| ⓘ | Petzite | 2.4.3.3 | Ag3AuTe2 |
| AmBnXp, with (m+n):p = 3:2 | |||
| ⓘ | Heazlewoodite | 2.5.3.1 | Ni3S2 |
| AmXp, with m:p = 1:1 | |||
| ⓘ | Galena | 2.8.1.1 | PbS |
| AmBnXp, with (m+n):p = 2:3 | |||
| ⓘ | Nagyágite | 2.11.10.1 | [Pb3(Pb,Sb)3S6](Au,Te)3 |
| AmBnXp, with (m+n):p = 1:2 | |||
| ⓘ | Pyrite | 2.12.1.1 | FeS2 |
| ⓘ | Sylvanite | 2.12.13.3 | (Au,Ag)2Te4 |
| Group 75 - TECTOSILICATES Si Tetrahedral Frameworks | |||
| Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si | |||
| ⓘ | Quartz | 75.1.3.1 | SiO2 |
| Unclassified Minerals, Mixtures, etc. | |||
| ⓘ | 'Serpentine Subgroup' | - | D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn |
| O | Oxygen | |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn |
| Mg | Magnesium | |
| Mg | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn |
| Al | Aluminium | |
| Al | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn |
| S | Sulfur | |
| S | ⓘ Nagyágite | [Pb3(Pb,Sb)3S6](Au,Te)3 |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Heazlewoodite | Ni3S2 |
| Mn | Manganese | |
| Mn | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn |
| Ni | Nickel | |
| Ni | ⓘ Heazlewoodite | Ni3S2 |
| Ni | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn |
| Zn | Zinc | |
| Zn | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 D = Mg, Fe, Ni, Mn, Al, Zn |
| Ag | Silver | |
| Ag | ⓘ Sylvanite | (Au,Ag)2Te4 |
| Ag | ⓘ Hessite | Ag2Te |
| Ag | ⓘ Petzite | Ag3AuTe2 |
| Sb | Antimony | |
| Sb | ⓘ Nagyágite | [Pb3(Pb,Sb)3S6](Au,Te)3 |
| Te | Tellurium | |
| Te | ⓘ Nagyágite | [Pb3(Pb,Sb)3S6](Au,Te)3 |
| Te | ⓘ Sylvanite | (Au,Ag)2Te4 |
| Te | ⓘ Hessite | Ag2Te |
| Te | ⓘ Petzite | Ag3AuTe2 |
| Au | Gold | |
| Au | ⓘ Nagyágite | [Pb3(Pb,Sb)3S6](Au,Te)3 |
| Au | ⓘ Gold | Au |
| Au | ⓘ Sylvanite | (Au,Ag)2Te4 |
| Au | ⓘ Petzite | Ag3AuTe2 |
| Pb | Lead | |
| Pb | ⓘ Nagyágite | [Pb3(Pb,Sb)3S6](Au,Te)3 |
| Pb | ⓘ Galena | PbS |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Hershey, Oscar H. (1899), The upper Coffee Creek mining district, California: Mining & Scientific Press: 79: 689.
Osborne, H.Z. (1903), The Dorleska gold mine: Mining and Scientific Press: 7: 252.
Stines, Norman S. (1907), The geology of the Coffee Creek mining district, California: Mining and Scientific Press: 95: 25-26.
MacDonald, Donald Francis (1913), Notes on the gold lodes of the Carrville district, Trinity County, California: USGS Bulletin 530D: 34.
Logan, Clarence August (1926), El Dorado, Shasta and Trinity Counties: California Journal of Mines and Geology, California Mining Bureau. (Report 22): 18.
Averill, Charles V. (1941), Mineral resources of Trinity and Humboldt Counties: California Journal of Mines and Geology, California Division Mines (Report 37): 37(1): 33.
Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged, 834pp.: 169.
Murdoch, Joseph & Robert W. Webb (1966), Minerals of California, Centennial Volume (1866-1966): California Division Mines & Geology Bulletin 189: 276, 286, 357.
Hotz, Preston Enslow, Thurber, H.K., Marks, L.Y., and Evans, R.K. (1972), Mineral resources of the Salmon-Trinity Alps Primitive Area, California: U.S. Geological Survey Bulletin 1371-B, 267 p.: 128-130.
Pemberton, H. Earl (1983), Minerals of California; Van Nostrand Reinholt Press: 64, 109, 110.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10086643 & 10263136.
U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0061050775.
Other Databases
| USGS MRDS Record: | 10086643 |
|---|
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