Pickup Mine (Chipmunk Mine), Lookout Mountain, Inyo County, California, USAi
| Regional Level Types | |
|---|---|
| Pickup Mine (Chipmunk Mine) | Mine |
| Lookout Mountain | Mountain |
| Inyo County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
37° 18' 12'' North , 118° 28' 25'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| West Bishop | 2,607 (2011) | 6.6km |
| Wilkerson | 563 (2011) | 8.0km |
| Bishop | 3,806 (2017) | 9.6km |
| Dixon Lane-Meadow Creek | 2,645 (2011) | 10.6km |
| Mesa | 251 (2011) | 14.2km |
A former W mine located in the NW¼ sec. 33, T7S, R32E, MDM, 7.3 km (4.5 miles) NNE of Lookout Mountain (coordinates of record), and 6.6 km (4.1 miles) SSW of West Bishop (forks of second canyon S of Bishop Creek, about 6 miles SW of Bishop) in the Sierra Nevada, on National Forest land. Operated in 1940 & 1941. MRDS database stated accuracy for this location is 100 meters.
Mineralization is hosted in limestone and hornfels. The ore body is irregular in form at a thickness of 4.57 meters and a length of 51.82 meters. The pendant has a length of 500 feet and a maximum breath of 250 feet. The intrusion of gabbro preceeded that of the quartz monzonite and small masses of gabbro are found at the edge of the pendant. Principal mineralization is along the SE edge of the pendant. Associated rocks include quartz monzonite and gabbro. Local rocks include Mesozoic granitic rocks, unit 3 (Sierra Nevada, Death Valley area, Northern Mojave Desert and Transverse Ranges).
Workings include underground openings with a length of 164.59 meters. There is a 370 foot adit with a raise. Another adit 24 feet higher at the S end of the pendant with 130 feet of workings and a 40 foot shaft at the portal of the S adit.
Production: 200 tons of ore.
Analytical data results: Averaged 0.5% WO3.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Diopside Formula: CaMgSi2O6 |
| ⓘ Epidote Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ 'Garnet Group' Formula: X3Z2(SiO4)3 |
| ⓘ Grossular Formula: Ca3Al2(SiO4)3 |
| ⓘ Opal Formula: SiO2 · nH2O References: Former Howard Merk collectionIdentified by Harold Moritz: Visual Identification |
| ⓘ Opal var. Opal-AN Formula: SiO2 · nH2O Habit: crust Colour: white Fluorescence: green under SW UV Description: Crust on scheelite/grossular matrix. References: Former Howard Merk collectionIdentified by Harold Moritz: Visual Identification |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Scheelite Formula: Ca(WO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| ⓘ | Opal var. Opal-AN | 4.DA.10 | SiO2 · nH2O |
| ⓘ | 4.DA.10 | SiO2 · nH2O | |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Scheelite | 7.GA.05 | Ca(WO4) |
| Group 9 - Silicates | |||
| ⓘ | Grossular | 9.AD.25 | Ca3Al2(SiO4)3 |
| ⓘ | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ | Diopside | 9.DA.15 | CaMgSi2O6 |
| Unclassified | |||
| ⓘ | 'Garnet Group' | - | X3Z2(SiO4)3 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| H | ⓘ Opal var. Opal-AN | SiO2 · nH2O |
| H | ⓘ Opal | SiO2 · nH2O |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Diopside | CaMgSi2O6 |
| O | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | ⓘ Grossular | Ca3Al2(SiO4)3 |
| O | ⓘ Opal var. Opal-AN | SiO2 · nH2O |
| O | ⓘ Opal | SiO2 · nH2O |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Scheelite | Ca(WO4) |
| O | ⓘ Garnet Group | X3Z2(SiO4)3 |
| Mg | Magnesium | |
| Mg | ⓘ Diopside | CaMgSi2O6 |
| Al | Aluminium | |
| Al | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Al | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Si | Silicon | |
| Si | ⓘ Diopside | CaMgSi2O6 |
| Si | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Si | ⓘ Opal var. Opal-AN | SiO2 · nH2O |
| Si | ⓘ Opal | SiO2 · nH2O |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Garnet Group | X3Z2(SiO4)3 |
| S | Sulfur | |
| S | ⓘ Pyrite | FeS2 |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Diopside | CaMgSi2O6 |
| Ca | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Ca | ⓘ Scheelite | Ca(WO4) |
| Fe | Iron | |
| Fe | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Fe | ⓘ Pyrite | FeS2 |
| W | Tungsten | |
| W | ⓘ Scheelite | Ca(WO4) |
Other Databases
| Link to USGS MRDS: | 10103220 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mojave DomainDomain
- Sierra Nevada BatholithVolcanic Arc
USA
- Sierra NevadaMountain Range
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID #0060270047
Pickup Mine, Lookout Mountain, Inyo County, California, USA