Kramer Hill Mine, Golconda Mining District, Humboldt County, Nevada, USAi
| Regional Level Types | |
|---|---|
| Kramer Hill Mine | Mine |
| Golconda Mining District | Mining District |
| Humboldt County | County |
| Nevada | State |
| USA | Country |
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Latitude & Longitude (WGS84):
40° 55' 34'' North , 117° 30' 9'' West
Latitude & Longitude (decimal):
Locality type:
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Golconda | 214 (2011) | 3.2km |
| Winnemucca | 7,887 (2017) | 20.2km |
Other/historical names associated with this locality:
Golconda Gold Ledge Mining Company
Alteration: Silicification And Argillization. Both The Fault And Hanging Wall Fracture Zone Are Silicified. The Shaley Rocks Of The Hanging Wall Fracture Zone Are Strongly Argillized. The Clays Produced By Argillization Are Kaolinite, Dickite, Illite(?), And An Unidentified Expanding Variety.
Commodity: A scanning electron microprobe analysis of vein material reveals the presence of pyrite, arsenic-bearing pyrite, arsenopyrite, galena, sphalerite, chalcopyrite, a lead antimony sulfide, and cinnabar. Also observed in the SEM analysis was a 25 micron grain of gold occurring in an iron oxide filled fracture in pyrite.
Deposit: ; model name could also be: sediment-hosted au.
Deposit type: Distal disseminated Ag-Au
Development: Eight claims were staked on the property in 1907 by l.k. Kramer. Two claims were patented in 1909 by the golconda ledge mining co. Ore was produced from underground workings and processed in golconda, and later, a 20 stamp mill was constructed on the site. Approximately 25,000-30,000 tons of ore were processed. Work by cordex in the early 1970's consisted of geologic mapping, underground chip and channel sampling, bulldozer trenching, and three drill programs totalling 18 rotary percussion holes. Cordex identified a modest tonnage of 0.19 opt gold along the main vein. Lower grade disseminated ore was not attractive at this time and the property was dropped. The property was reacquired by pinson mining co. In 1986. A program to develop the lower grade disseminated ore was then initiated.
Geology: Kretschmer notes that the style of mineralization is something like a hybrid between an epithermal vein and a carlin-type deposit. This deposit does not fit particularly well into any of the USGS model categories, but seems to be closest to #26a.
Rock formation(s): Twin Canyon Mbr. Of Osgood Mt. Qtzt
Ore(s): See Comments
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Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded from this region.Mineral List
Mineral list contains entries from the region specified including sub-localities12 valid minerals.
Rock Types Recorded
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Rock list contains entries from the region specified including sub-localities
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Alphabetical List Tree DiagramDetailed Mineral List:
| β Arsenopyrite Formula: FeAsS Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β Calcite Formula: CaCO3 Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β Chalcopyrite Formula: CuFeS2 Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β Cinnabar Formula: HgS Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β 'Clays' Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β Dickite Formula: Al2(Si2O5)(OH)4 Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β Galena Formula: PbS Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β Gold Formula: Au Localities: Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β 'Iron oxide' Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β Kaolinite Formula: Al2(Si2O5)(OH)4 Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β Muscovite Formula: KAl2(AlSi3O10)(OH)2 Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β Muscovite var. Illite Formula: K0.65Al2.0[Al0.65Si3.35O10](OH)2 Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β Pyrite Formula: FeS2 Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β Pyrite var. Arsenic-bearing Pyrite Formula: FeS2 Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β Quartz Formula: SiO2 Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β Sphalerite Formula: ZnS 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 1 - Elements | |||
|---|---|---|---|
| β | Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| β | Arsenopyrite | 2.EB.20 | FeAsS |
| β | Chalcopyrite | 2.CB.10a | CuFeS2 |
| β | Cinnabar | 2.CD.15a | HgS |
| β | Galena | 2.CD.10 | PbS |
| β | Pyrite | 2.EB.05a | FeS2 |
| β | var. Arsenic-bearing Pyrite | 2.EB.05a | FeS2 |
| β | Sphalerite | 2.CB.05a | ZnS |
| Group 4 - Oxides and Hydroxides | |||
| β | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| β | Calcite | 5.AB.05 | CaCO3 |
| Group 9 - Silicates | |||
| β | Dickite | 9.ED.05 | Al2(Si2O5)(OH)4 |
| β | Kaolinite | 9.ED.05 | Al2(Si2O5)(OH)4 |
| β | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| β | var. Illite | 9.EC.15 | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| Unclassified Minerals, Rocks, etc. | |||
| β | 'Clays' | - | |
| β | 'Iron oxide' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Dickite | Al2(Si2O5)(OH)4 |
| H | β Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| H | β Kaolinite | Al2(Si2O5)(OH)4 |
| H | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| C | Carbon | |
| C | β Calcite | CaCO3 |
| O | Oxygen | |
| O | β Dickite | Al2(Si2O5)(OH)4 |
| O | β Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| O | β Kaolinite | Al2(Si2O5)(OH)4 |
| O | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | β Calcite | CaCO3 |
| O | β Quartz | SiO2 |
| Al | Aluminium | |
| Al | β Dickite | Al2(Si2O5)(OH)4 |
| Al | β Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| Al | β Kaolinite | Al2(Si2O5)(OH)4 |
| Al | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | β Dickite | Al2(Si2O5)(OH)4 |
| Si | β Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| Si | β Kaolinite | Al2(Si2O5)(OH)4 |
| Si | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | β Quartz | SiO2 |
| S | Sulfur | |
| S | β Pyrite var. Arsenic-bearing Pyrite | FeS2 |
| S | β Arsenopyrite | FeAsS |
| S | β Chalcopyrite | CuFeS2 |
| S | β Cinnabar | HgS |
| S | β Galena | PbS |
| S | β Pyrite | FeS2 |
| S | β Sphalerite | ZnS |
| K | Potassium | |
| K | β Muscovite var. Illite | K0.65Al2.0[Al0.65Si3.35O10](OH)2 |
| K | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Ca | Calcium | |
| Ca | β Calcite | CaCO3 |
| Fe | Iron | |
| Fe | β Pyrite var. Arsenic-bearing Pyrite | FeS2 |
| Fe | β Arsenopyrite | FeAsS |
| Fe | β Chalcopyrite | CuFeS2 |
| Fe | β Pyrite | FeS2 |
| Cu | Copper | |
| Cu | β Chalcopyrite | CuFeS2 |
| Zn | Zinc | |
| Zn | β Sphalerite | ZnS |
| As | Arsenic | |
| As | β Arsenopyrite | FeAsS |
| Au | Gold | |
| Au | β Gold | Au |
| Hg | Mercury | |
| Hg | β Cinnabar | HgS |
| Pb | Lead | |
| Pb | β Galena | PbS |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Vanderburg, W.O., (1938), Reconnaissance of Mining Districts in Humboldt Co., Nev: USBM I.C.6995
Kretschmer, E.L., (1991), Geology of the Kramer Hill Gold Deposit, Humboldt County, Nevada, in Raines, G.L., Et Al, Eds., Geology and Ore Deposits of the Great Basin, the Geological Society of Nevada, Reno, P. 857-863.
Other Databases
| Link to USGS MRDS: | 10043952 |
|---|
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