NBMG Sample Location 1741, Delamar Mining District, Lincoln County, Nevada, USAi
| Regional Level Types | |
|---|---|
| NBMG Sample Location 1741 | Occurrence |
| Delamar Mining District | Mining District |
| Lincoln County | County |
| Nevada | State |
| USA | Country |
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Latitude & Longitude (WGS84):
37° 31' 1'' North , 114° 47' 33'' West
Latitude & Longitude (decimal):
Locality type:
KΓΆppen climate type:
Alteration: Wallrocks Bleached White
Deposit: Mineralized shear zone followed by stope for 50 ft. Shear surface is well-defined and coated by abundant Fe and Mn oxides. Fracture sets are aligned parallel to main shear, and all parallel a well-developed joint set in the host, indicating that fracturing probably provided a pre-mineral zone of weakness. Dumprock consists of altered and mineralized quartzite, and less abundant massive to crystalline white quartz vein material with large vugs filled with prismatic quartz. Clots and irregular lenses of pyrite, chalcopyrite, covellite and possibly galena and tetrahedrite occur in the quartzite which also shows boxworks and Fe and Mn stains. Sulfides are fresh internally, but oxidized near the weathered surface of the rocks. Malachite and chrysocolla are abundant on some samples. Yello W and green oxides coat rocks also.
Deposit type: Epithermal vein, Comstock
Development: No activity at time of examination in sept., 1983, but some fairly recent surface exploration (assessment work?) on slope n W of shaft near prospects
Geology: Quartzite strikes n55w, dip 25 ne. Bedding and fracture surfaces are coated by Fe and Mn oxides and quartz crystals, fractures generally occur at a high angle to bedding. Some bedding surfaces show slickensides. Shale outcrops to south
Ore(s): Shear Zone, Fracturing Along Well-Defined Joint Set
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
7 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| β Chalcopyrite Formula: CuFeS2 Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β Chrysocolla Formula: Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β Covellite Formula: CuS 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 Malachite Formula: Cu2(CO3)(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 Quartz Formula: SiO2 Reference: U.S. Geological Survey (2005) Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia. |
| β '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 | |||
|---|---|---|---|
| β | Chalcopyrite | 2.CB.10a | CuFeS2 |
| β | Covellite | 2.CA.05a | CuS |
| β | Galena | 2.CD.10 | PbS |
| β | Pyrite | 2.EB.05a | FeS2 |
| β | 'Tetrahedrite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)Sb4S12S |
| Group 4 - Oxides and Hydroxides | |||
| β | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| β | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
| Group 9 - Silicates | |||
| β | Chrysocolla | 9.ED.20 | Cu2-xAlx(H2-xSi2O5)(OH)4 Β· nH2O, x < 1 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| H | β Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | β Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | β Quartz | SiO2 |
| O | β Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| O | β Malachite | Cu2(CO3)(OH)2 |
| Al | Aluminium | |
| Al | β Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Si | Silicon | |
| Si | β Quartz | SiO2 |
| Si | β Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| S | Sulfur | |
| S | β Pyrite | FeS2 |
| S | β Chalcopyrite | CuFeS2 |
| S | β Covellite | CuS |
| S | β Galena | PbS |
| S | β Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Fe | Iron | |
| Fe | β Pyrite | FeS2 |
| Fe | β Chalcopyrite | CuFeS2 |
| Cu | Copper | |
| Cu | β Chalcopyrite | CuFeS2 |
| Cu | β Chrysocolla | Cu2-xAlx(H2-xSi2O5)(OH)4 · nH2O, x < 1 |
| Cu | β Covellite | CuS |
| Cu | β Malachite | Cu2(CO3)(OH)2 |
| Cu | β Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Sb | Antimony | |
| Sb | β Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Pb | Lead | |
| Pb | β Galena | PbS |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Bentz, J. and Smith, P., (1983), Field Examination Report of Sept. 22, 1983.
Tschanz, C.M. and Pampeyan, E.H., (1970), NBMG Bull 73.
Other Databases
| Link to USGS MRDS: | 10046500 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Antler Foreland BasinBasin
- Basin and Range BasinsBasin
- Mojave DomainDomain
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