Toga Mine (Pacific Tungsten Company Mine), Darwin, Darwin Mining District, Darwin Hills, Inyo County, California, USAi
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Latitude & Longitude (WGS84):
36° 16' 8'' North , 117° 34' 40'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
A former W mine located in sec. 19, T19S, R41E, MDM, 1.2 km (0.7 mile/4,200 feet) E of Darwin. Operated in 1943. MRDS database stated accuracy for this location is 10 meters. Updated description, links and position N36.26877 W117.57772 by Richard Muster, courtesy Walt Margerum.
The rock in the mining area is calc-hornfels,limestone and quartz monzonite. Local rocks include Mesozoic granitic rocks, unit 3 (Sierra Nevada, Death Valley area, Northern Mojave Desert and Transverse Ranges).
Workings include surface and underground openings comprised of several short adits (mostly caved in), some raises and a longer adit of 370 feet, driven from the gully, plus a glory hole.
In 1940 Frank Watkins, C.W. Fletcher and others organized the Darwin Consolidated Tungsten Company. In 1941 E.L. Cord and others formed the Pacific Tungsten Company which leased 23 mining claims from the Darwin Consolidated Tungsten Company.
Some Scheelite was mined in the Toga mine in 1943 by Fletcher, still owner of this small mine.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Hydrohalloysite Formula: Al2Si2O5(OH)4 · 2H2O |
| ⓘ 'Limonite' Description: Present in gossan. |
| ⓘ Scheelite Formula: Ca(WO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
|---|---|---|---|
| ⓘ | Scheelite | 7.GA.05 | Ca(WO4) |
| Group 9 - Silicates | |||
| ⓘ | Hydrohalloysite | 9.ED.10 | Al2Si2O5(OH)4 · 2H2O |
| Unclassified | |||
| ⓘ | 'Limonite' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Hydrohalloysite | Al2Si2O5(OH)4 · 2H2O |
| O | Oxygen | |
| O | ⓘ Scheelite | Ca(WO4) |
| O | ⓘ Hydrohalloysite | Al2Si2O5(OH)4 · 2H2O |
| Al | Aluminium | |
| Al | ⓘ Hydrohalloysite | Al2Si2O5(OH)4 · 2H2O |
| Si | Silicon | |
| Si | ⓘ Hydrohalloysite | Al2Si2O5(OH)4 · 2H2O |
| Ca | Calcium | |
| Ca | ⓘ Scheelite | Ca(WO4) |
| W | Tungsten | |
| W | ⓘ Scheelite | Ca(WO4) |
Other Databases
| Link to USGS MRDS: | 10188120 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Antler Foreland BasinBasin
- Basin and Range BasinsBasin
- Mojave DomainDomain
- Southern Basin and RangeWide Rift
USA
- Sierra NevadaMountain Range
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