True American Mine, Tobin and Sonoma Range Mining District, Pershing County, Nevada, USAi
| Regional Level Types | |
|---|---|
| True American Mine | Mine |
| Tobin and Sonoma Range Mining District | Mining District |
| Pershing County | County |
| Nevada | State |
| USA | Country |
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Latitude & Longitude (WGS84):
40° 26' 20'' North , 117° 28' 21'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Mindat Locality ID:
58785
Long-form identifier:
mindat:1:2:58785:8
GUID (UUID V4):
15f020df-13dc-483e-a749-bbcdab3c3c93
Sec 27 & 34 T30N R40E
Alteration: Silicification Of Limestone.
Deposit: Scheelite occurs in lenses of silicified limestone cut by numerous quartz stringers, 1-24 inches wide and up to 50 feet long. Two lenses yielded 1 to 6 tons of sorted high grade ore each and two others yielded about 100 tons ore that contained about 2.5 % wo3. Minor pyrite and molybdenite are also present. Johnson and benson reported a 1 foot sample from no. 1 adit assayed 4.20% wo3 and a 0.7 foot sample from no. 2 adit assayed 5.12% wo3.; model name could also be: W veins. This record has been merged with m242839, which has been deleted.
Deposit type: W skarn
Development: Blossom operated the mine during 1941-1943 and 1951-1954.
Geology: Thin-bedded limestone strikes north and dips southeast and is interbedded with shales and volcanics. The granodiorite stock intrudes sedimentary rocks west of the mine.
Rock formation(s): Pumpernickel;;
Ore(s): Bedding Planes; Near Contact Of Granodiorite Pluton
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 Pyrite Formula: FeS2 |
| β Quartz Formula: SiO2 |
| β Scheelite Formula: Ca(WO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| β | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| β | Quartz | 4.DA.05 | SiO2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| β | Scheelite | 7.GA.05 | Ca(WO4) |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | β Quartz | SiO2 |
| O | β Scheelite | Ca(WO4) |
| Si | Silicon | |
| Si | β Quartz | SiO2 |
| S | Sulfur | |
| S | β Pyrite | FeS2 |
| Ca | Calcium | |
| Ca | β Scheelite | Ca(WO4) |
| Fe | Iron | |
| Fe | β Pyrite | FeS2 |
| W | Tungsten | |
| W | β Scheelite | Ca(WO4) |
Other Databases
| Link to USGS MRDS: | 10008817 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mojave DomainDomain
- West Nevada Permian-Triassic BasinBasin
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References
