Hilltop mine (Independence mine), Hilltop Mining District, Lander County, Nevada, USAi
| Regional Level Types | |
|---|---|
| Hilltop mine (Independence mine) | Mine |
| Hilltop Mining District | Mining District |
| Lander County | County |
| Nevada | State |
| USA | Country |
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Latitude & Longitude (WGS84):
40° 24' 56'' North , 116° 48' 21'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Crescent Valley | 392 (2011) | 19.4km |
| Battle Mountain | 3,635 (2011) | 27.4km |
Mindat Locality ID:
59856
Long-form identifier:
mindat:1:2:59856:2
GUID (UUID V4):
2f1dfdb0-9edc-4da9-a265-5cc3add94f24
Sec 4 T29N R46E
Structure: Roberts Mtns. Thrust, At Depth
Alteration: Chloritic, Sericitic
Deposit: "shattered quartzite is seamed with stringers of quartz and iron oxide carrying a large amount of free gold. Here and there are small bodies of pyrite and galena in the fracture planes of quartzite and minute stringers of gray metallic mineral said to contain bismuth. Assays show silver...by weight equal to gold. The quartzite near the ore is impregnated with pyrite and locally decomposed to a soft white claylike substance said to carry high values in gold."-emmons in 1907, high-grade gold ore was discovered in hilltop canyon, beginning rush to the area. Hilltop milling and reduction co. Built a 10-stamp mill in about 1910; converted in 1914 to a cyanidation mill. Hilltops independence mines were located in 1906. Principal production from hilltop district was from 1912 to 1921. Total production from the district from 1902 to 1936 was $701,855, mainly in silver and gold, with some copper and lead. ; info.src : 1 pub lit
Deposit type: Distal disseminated Ag-Au
Development: In 1907, high-grade gold ore was discovered in hilltop canyon. Hilltop mine was located in 1906(?). Hilltop mining and reduction co. Built a 10-stamp mill in 1910; in 1914 it was converted to a cyanidation mill.
Geology: "shattered quartzite is seamed with stringers of quartz and iron oxide carrying a large amount of free gold. Here and there are small bodies of pyrite and galena in the fracture planes of quartzite and minute stringers of gray metallic mineral said to contain bismuth. Assays show silver...by weight equal to gold. The quartzite near the ore is impregnated with pyrite and locally decomposed to a soft white claylike substance said to carry high values in gold."-emmons.
Rock formation(s): Altered Quartz Monzonite Porphyry
Quartzite
Ore(s): Brecciation Of Quartzite, Fractures
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
14 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 Arsenopyrite Formula: FeAsS |
| β Baryte Formula: BaSO4 |
| β Calcite Formula: CaCO3 |
| β Cassiterite Formula: SnO2 |
| β Cassiterite var. Wood Tin Formula: SnO2 |
| β Chalcopyrite Formula: CuFeS2 |
| β Fluorite Formula: CaF2 |
| β Galena Formula: PbS |
| β Gold Formula: Au |
| β 'Jasper' |
| β Kaolinite Formula: Al2(Si2O5)(OH)4 |
| β Marcasite Formula: FeS2 |
| β 'Melnikovite' |
| β Pyrite Formula: FeS2 |
| β Quartz Formula: SiO2 |
| β Sphalerite Formula: ZnS |
| β Turquoise Formula: CuAl6(PO4)4(OH)8 · 4H2O |
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 | Sphalerite | 2.CB.05a | ZnS |
| β | Chalcopyrite | 2.CB.10a | CuFeS2 |
| β | Galena | 2.CD.10 | PbS |
| β | Pyrite | 2.EB.05a | FeS2 |
| β | Marcasite | 2.EB.10a | FeS2 |
| β | Arsenopyrite | 2.EB.20 | FeAsS |
| Group 3 - Halides | |||
| β | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| β | Quartz | 4.DA.05 | SiO2 |
| β | Cassiterite var. Wood Tin | 4.DB.05 | SnO2 |
| β | 4.DB.05 | SnO2 | |
| Group 5 - Nitrates and Carbonates | |||
| β | Calcite | 5.AB.05 | CaCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| β | Baryte | 7.AD.35 | BaSO4 |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| β | Turquoise | 8.DD.15 | CuAl6(PO4)4(OH)8 Β· 4H2O |
| Group 9 - Silicates | |||
| β | Kaolinite | 9.ED.05 | Al2(Si2O5)(OH)4 |
| Unclassified | |||
| β | 'Jasper' | - | |
| β | 'Melnikovite' | - | |
List of minerals for each chemical element
Other Databases
| Link to USGS MRDS: | 10044080 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mojave DomainDomain
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References
