Waterfall prospect, Cuna Spring, White Mountains, Inyo County, California, USAi
| Regional Level Types | |
|---|---|
| Waterfall prospect | Prospect |
| Cuna Spring | Spring |
| White Mountains | Mountain Range |
| Inyo County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
37° 21' 15'' North , 118° 3' 42'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Big Pine | 1,756 (2014) | 29.1km |
| Bishop | 3,806 (2017) | 29.5km |
| Wilkerson | 563 (2011) | 30.0km |
| Dixon Lane-Meadow Creek | 2,645 (2011) | 31.4km |
| West Bishop | 2,607 (2011) | 34.8km |
Mindat Locality ID:
79721
Long-form identifier:
mindat:1:2:79721:5
GUID (UUID V4):
357faca3-9da5-4c59-95fb-748315542002
A former Fluorspar-Ag-Au mine located in the EΒ½ (estimated) sec. 7, T7S, R36E, MDM, 4.1 km (2.6 miles) NNW of Cuna Spring and 5.0 km (3.1 miles) N of Antelope Spring, W of Birch Creek (western margin of Deep Spring Valley, 2 miles NE of Antelope Spring), on National Forest wilderness land (Birch Creek Roadless Area Review & Evaluation (RARE) II Area). Discovered in 1906. MRDS database stated accuracy for this location is 10 meters.
NOTE: USGS MRDS file #10260433 places this locality in sec. 2, T7S, R35E, MDM, at coordinates 118.09783W, 37.37525N, while MRDS file #10036110 places it in sec. 7, T7S, R36S, MDM, at coordinates 118.06176W, 37.35439N. The latter values appear to be the correct values and are reflected in this Mindat file.
Mineralization is hosted in marble and hornfels. Fluoritic veinlets, a fraction of an inch to several inches in thickness, in a belt of tremolitic white marble, 10 to 12 feet in thickness. Larger veins described as pegmatitic in appearance and composition, with coarse orthoclase, muscovite and fluorite. The hanging wall is a black, micaceous hornfels. Proportion of fluorite veinlets to mass of limestone or marble traversed by them is small. Only at one point were veinlets numerous enough to bring the deposit up to ore grade. Controls for ore emplacement included the zone of contact metamorphism. The metamorphic belt lies in country rock in limestone. Local rocks include Cambrian marine rocks and/or Mesozoic granitic rocks, unit 3 (Sierra Nevada, Death Valley area, Northern Mojave Desert and Transverse Ranges).
Workings include surface and unspecified underground openings comprised of open cuts.
Analytical data results: Assayed $18/ton in Au (period values).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| β Fluorite Formula: CaF2 Colour: Purple Description: Occurs as purple veinlets in marble. The pronounced purple color and imports an unusual and striking appearance to the Au ore. |
| β Gold Formula: Au Description: Occurs in fluorite |
| β Muscovite Formula: KAl2(AlSi3O10)(OH)2 |
| β Orthoclase Formula: K(AlSi3O8) |
| β Pyrite Formula: FeS2 |
| β Quartz Formula: SiO2 |
| β Tremolite Formula: ◻Ca2Mg5(Si8O22)(OH)2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| β | Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| β | Pyrite | 2.EB.05a | FeS2 |
| Group 3 - Halides | |||
| β | Fluorite | 3.AB.25 | CaF2 |
| Group 4 - Oxides and Hydroxides | |||
| β | Quartz | 4.DA.05 | SiO2 |
| Group 9 - Silicates | |||
| β | Tremolite | 9.DE.10 | β»Ca2Mg5(Si8O22)(OH)2 |
| β | Muscovite | 9.EC.15 | KAl2(AlSi3O10)(OH)2 |
| β | Orthoclase | 9.FA.30 | K(AlSi3O8) |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| H | β Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| O | Oxygen | |
| O | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| O | β Orthoclase | K(AlSi3O8) |
| O | β Quartz | SiO2 |
| O | β Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| F | Fluorine | |
| F | β Fluorite | CaF2 |
| Mg | Magnesium | |
| Mg | β Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| Al | Aluminium | |
| Al | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Al | β Orthoclase | K(AlSi3O8) |
| Si | Silicon | |
| Si | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| Si | β Orthoclase | K(AlSi3O8) |
| Si | β Quartz | SiO2 |
| Si | β Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| S | Sulfur | |
| S | β Pyrite | FeS2 |
| K | Potassium | |
| K | β Muscovite | KAl2(AlSi3O10)(OH)2 |
| K | β Orthoclase | K(AlSi3O8) |
| Ca | Calcium | |
| Ca | β Fluorite | CaF2 |
| Ca | β Tremolite | ◻Ca2Mg5(Si8O22)(OH)2 |
| Fe | Iron | |
| Fe | β Pyrite | FeS2 |
| Au | Gold | |
| Au | β Gold | Au |
Other Databases
| Link to USGS MRDS: | 10036110 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Antler Foreland BasinBasin
- Basin and Range BasinsBasin
- Mojave DomainDomain
USA
- Sierra NevadaMountain Range
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID #0060271339
