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Sunbeam Mine, Yankee Fork Mining District, Custer County, Idaho, USAi
| Regional Level Types | |
|---|---|
| Sunbeam Mine | Mine |
| Yankee Fork Mining District | Mining District |
| Custer County | County |
| Idaho | State |
| USA | Country |
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Latitude & Longitude (WGS84):
44° 26' 20'' North , 114° 44' 8'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Other/historical names associated with this locality:
Bismarck; Daisy; Golden Sunbeam Mine
REF:Deposit:: UMPLEBY, J. B., 1913, SOME ORE DEPOSITS IN NORTHWESTERN CUSTER COUNTY, IDAHO: USGS BULL. 539, 104 P.
Deposit:: LOCKARD, D. W., 1970, EVALUATION OF THE GOLDEN SUNBEAM DEPOSIT, CUSTER COUNTY, IDAHO: MOSCOW, IDAHO, UNIV. OF IDAHO MS THESIS, 78 P
Commodities (Major) - Silver, Gold; (Trace) - REE, Copper
Development Status: Producer
Host Rock Unit: Yellowjacket Formation - Quartzite
Structure: Brecciation, Gouge
Host Rock: Tuff
The Sunbeam Mine was an obscure low-grade claim until C.E. Gable, an aggressive Pittsburgh capitalist, bought it in 1903. Although its ore values averaged less than $10 per ton, the Sunbeam became a paying proposition under Gable and by 1909 was the country's best producing mine. The Sunbeam property was built to produce hydroelectric power to run machinery in the Sunbeam's mine and mills. An unpaid mortgage, however, forced the sunbeam property to be sold at a sheriff's auction in 1911, and the Sunbeam, the last major mine in the Yankee Fork closed down.
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
5 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:
| ⓘ Acanthite Formula: Ag2S |
| ⓘ Native Gold Formula: Au |
| ⓘ Native Gold var. Electrum Formula: (Au,Ag) |
| ⓘ Native Silver Formula: Ag |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold var. Electrum | 1.AA.05 | (Au,Ag) |
| ⓘ | 1.AA.05 | Au | |
| ⓘ | Native Silver | 1.AA.05 | Ag |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Acanthite | 2.BA.35 | Ag2S |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Acanthite | Ag2S |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Ag | Silver | |
| Ag | ⓘ Acanthite | Ag2S |
| Ag | ⓘ Native Gold var. Electrum | (Au,Ag) |
| Ag | ⓘ Native Silver | Ag |
| Au | Gold | |
| Au | ⓘ Native Gold var. Electrum | (Au,Ag) |
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS MRDS: | 10107302 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Rocky MountainsMountain Range
North America PlateTectonic Plate
- Antler Foreland BasinBasin
- Great Falls DomainDomain
- Northern Rocky MountainsWide Rift
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