Dark Horse Mine, Chalfant (Chalfant Valley), Chalfant Valley, Mono County, California, USAi
| Regional Level Types | |
|---|---|
| Dark Horse Mine | Mine |
| Chalfant (Chalfant Valley) | - not defined - |
| Chalfant Valley | Valley |
| Mono County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
37° 29' 47'' North , 118° 23' 16'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Dixon Lane-Meadow Creek | 2,645 (2011) | 12.5km |
| Bishop | 3,806 (2017) | 14.8km |
| Mesa | 251 (2011) | 16.1km |
| West Bishop | 2,607 (2011) | 16.2km |
| Round Valley | 435 (2011) | 19.6km |
A former lode Au mine located in the E½SE¼ (estimated) sec. 19, T5S, R34E, MDM, 4.3 km (2.6 miles) SSW of Chalfant, on National Forest land. MRDS database accuracy for this location is not stated.
Mineralization is hosted in limestone. The ore body has the form of a bunch or kidney instead of a vein and consists of sugary quartz, in places white, in others deeply stained with iron oxide. Local rocks include Quaternary pyroclastic and volcanic mudflow deposits, unit 2 (Long Valley Caldera) and Quaternary alluvium and marine deposits.
Workings include underground openings with a length of 213.36 meters and an overall depth of 33.53 meters and include a 110 foot deep shaft and tunnels with crosscuts totaling 700 feet in length.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Native Gold Formula: Au |
| ⓘ Quartz Formula: SiO2 Colour: White to iron oxide stained Description: Sugary |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| 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 |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS MRDS: | 10031573 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mojave DomainDomain
- Northern Basin and RangeWide Rift
USA
- Sierra NevadaMountain Range
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