Hapgood mine (Grayson group), Poverty Peak Mining District, Humboldt County, Nevada, USAi
| Regional Level Types | |
|---|---|
| Hapgood mine (Grayson group) | Mine |
| Poverty Peak Mining District | Mining District |
| Humboldt County | County |
| Nevada | State |
| USA | Country |
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Latitude & Longitude (WGS84):
41° 20' 59'' North , 117° 27' 11'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Paradise Valley | 109 (2011) | 17.4km |
| Orovada | 155 (2011) | 36.9km |
| Golconda | 214 (2011) | 44.2km |
| Winnemucca | 7,887 (2017) | 48.1km |
Sec 15(?) T40N R40E
Structure: Reg.Struct: Thrust Fault Bedding Plane Shears
Alteration: Clay
Deposit: Bedding-plane shears discovered about 1936 or 1937 by t.c. Hapgood. The group of 6 unpatented claims. In 1937, t.c. Hapgood formed a partnership with f.t. Johnson and o.l. Cash, and erected a 2-pipe retort from which 66 flasks hg were recovered in 1939-40. Lessees produced 38 flasks in 1941. Development consists of about 500 ft of underground workings. ; info.src : 1 pub lit; 2 unpub rept; 3 field observ
Deposit type: Hot-spring Hg
Development: In 1939-1940, discoverer t. C. Hapgood recovered 66 flasks from a 2-pipe inclined retort. In 1941 e. T. Fischer and t. L. Chapman leased the property and produced 38 flasks. Early in 1942, the lessees turned the property back. In the period 1960-62, 21 flasks were produced by w. Brunke and f. Darrah. The property was subsequently leased by leland york in 1965, who produced 2 flasks hg in 1965. In 1970, the crofoot lumber co. Leased the property and mined 400 tons ore.
Geology: Geol.com: cinnabar occurs along several closely-spaced parallel bedding plane shears As veinlets and locally forms isolated bunches in the limestone away from the shears.
Rock formation(s): Havallah Formation;Pumpernickel Formation
Ore(s): Bedding Plane Shears
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
4 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:
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Cinnabar Formula: HgS |
| ⓘ 'Clay minerals' |
| ⓘ Gypsum Formula: CaSO4 · 2H2O |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Cinnabar | 2.CD.15a | HgS |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
| Unclassified | |||
| ⓘ | 'Clay minerals' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Gypsum | CaSO4 · 2H2O |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Gypsum | CaSO4 · 2H2O |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Cinnabar | HgS |
| S | ⓘ Gypsum | CaSO4 · 2H2O |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Gypsum | CaSO4 · 2H2O |
| Hg | Mercury | |
| Hg | ⓘ Cinnabar | HgS |
Other Databases
| Link to USGS MRDS: | 10040532 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Auld Lang Syne BasinBasin
- Basin and Range BasinsBasin
- Golconda-Roberts Mountain DomainDomain
- Northern Basin and RangeWide Rift
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