July 4 Claim, Humboldt County, Nevada, USAi
| Regional Level Types | |
|---|---|
| July 4 Claim | Claim |
| Humboldt County | County |
| Nevada | State |
| USA | Country |
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Latitude & Longitude (WGS84):
40° 58' 3'' North , 117° 26' 8'' West
Latitude & Longitude (decimal):
Locality type:
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Golconda | 214 (2011) | 4.8km |
| Winnemucca | 7,887 (2017) | 25.2km |
Other/historical names associated with this locality:
NBMG Sample Site 489
Alteration: Biotite And Hornblende In Porphyry Are Altered To Sericite Or Chlorite; Feldspars Altered To Clay
Deposit: Copper, iron and Mn oxide minerals occur in milky quartz vein material along a n20e, 70 SE fault? a small outcrop of somewhat altered granodiorite porphyry occurs in one trench, but the main wallrock is grey phyllite within quartzite. A 50 cm wide highly hematitic zone in the phyllite occurs along strike away from the pit with the vein quartz. Remnants of chalcopyrite and pyrite present in the quartz; malachite, wad, limonite, dark oxide cu minerals (?), and a yellow-green, unidentified oxide (arsenate?) mineral occur in the vein quartz material. The total width of the vein could not be determined, but it does not extend more than a few meters horizontally, and is probably spotty in the main area of exposure.
Development: No activity in 1984
Rock formation(s): Osgood Mountain Quartzite
Ore(s): Fault Zone?
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
3 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 'Chlorite Group' 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. Sericite Formula: KAl2(AlSi3O10)(OH)2 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. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| β | Chalcopyrite | 2.CB.10a | CuFeS2 |
| Group 4 - Oxides and Hydroxides | |||
| β | Quartz | 4.DA.05 | SiO2 |
| Group 9 - Silicates | |||
| β | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| β | var. Sericite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| Unclassified Minerals, Rocks, etc. | |||
| β | 'Chlorite Group' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| H | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | Oxygen | |
| O | β Quartz | SiO2 |
| O | β Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| O | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | Aluminium | |
| Al | β Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Al | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | Silicon | |
| Si | β Quartz | SiO2 |
| Si | β Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| Si | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| S | Sulfur | |
| S | β Chalcopyrite | CuFeS2 |
| K | Potassium | |
| K | β Muscovite var. Sericite | KAl2(AlSi3O10)(OH)2 |
| K | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Fe | Iron | |
| Fe | β Chalcopyrite | CuFeS2 |
| Cu | Copper | |
| Cu | β Chalcopyrite | CuFeS2 |
References
Sort by
Year (asc) Year (desc) Author (A-Z) Author (Z-A)Garside, L.J., (1984), NBMG Field Examination, 19 Jun 84, and Sample Analysis.
USGS, (1974), Map Gq-1174
Other Databases
| Link to USGS MRDS: | 10047299 |
|---|
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