Mexican Mine (Reed Flat), Index Hill, White Mountains, Inyo County, California, USAi
| Regional Level Types | |
|---|---|
| Mexican Mine (Reed Flat) | Mine |
| Index Hill | Hill |
| White Mountains | Mountain Range |
| Inyo County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
37° 22' 37'' North , 118° 10' 47'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Bishop | 3,806 (2017) | 19.1km |
| Dixon Lane-Meadow Creek | 2,645 (2011) | 20.8km |
| Wilkerson | 563 (2011) | 21.3km |
| West Bishop | 2,607 (2011) | 24.4km |
| Big Pine | 1,756 (2014) | 25.5km |
Mindat Locality ID:
79169
Long-form identifier:
mindat:1:2:79169:1
GUID (UUID V4):
b3b4c426-9bf4-49ff-b93a-69b4412db59a
A former Pb-Zn-Ag mine located in sec. 31, T6S, R35E & in sec. 6, T7S, R35E, MDM, about 9.3 km SSW of Index Hill, on the SE margin of Reed Flat, on National Forest wilderness land (Birch Creek Roadless Area Review & Evaluation (RARE II) Area). Discovered in 1862. First (modern ?) production was in 1909. MRDS database stated accuracy for this location is 10 meters.
Mineralization is a replacement deposit hosted in limestone. The ore body is 18 meters thick, 134 meters wide & 134 meters long. The ore body(ies) are massive, disseminated replacement bodies. The primary mode of origin was hydrothermal. Primary ore control was faulting and the secondary was lithology. The degree of wallrock alteration is unknown. The ore is partially oxidizedm to carbonates of Pb & Zn. Galena & cerussite combined are 1.1% Pb. Sphalerite & smithsonite may also be present. Local rocks include Precambrian rocks, undivided, unit 1 (Death Valley).
Workings include surface and underground openings. There are several open cuts, a 60 foot shaft with an 800 feet crosscut adit driven S60E. There are also over 400 feet of drifts and crosscuts driven N from the adit. A 60 foot winze and a 25 foot raise are also present.
Production data are found in: Goodwin, Joseph Grant (1957).
Production totals unknown.
Assay data results: Year: 1948: 3.7% Pb, 6% Zn, & 2.6 ounces Ag/ton.
NOTE: The MRDS files present "production" data in the form of yield per ton. These data are confusing as presented. see the MRDS files.
Reserves and resources data: Estimate year: 1983: inferred: 245,000 metric tons ore; demonstrated: 49,000 metric tons ore, indicated: 49,000 metruic tons ore; total resources: 294,000 metric tons ore.
Resource details: Ag: 58 grams/metric ton; Pb: 1.1 weight %; Zn: 1.8999 weight %.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| β Cerussite Formula: PbCO3 |
| β Galena Formula: PbS |
| β Hemimorphite Formula: Zn4Si2O7(OH)2 · H2O |
| β Silver Formula: Ag |
| β Smithsonite ? Formula: ZnCO3 |
| β Sphalerite Formula: ZnS |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| β | Silver | 1.AA.05 | Ag |
| Group 2 - Sulphides and Sulfosalts | |||
| β | Sphalerite | 2.CB.05a | ZnS |
| β | Galena | 2.CD.10 | PbS |
| Group 5 - Nitrates and Carbonates | |||
| β | Smithsonite ? | 5.AB.05 | ZnCO3 |
| β | Cerussite | 5.AB.15 | PbCO3 |
| Group 9 - Silicates | |||
| β | Hemimorphite | 9.BD.10 | Zn4Si2O7(OH)2 Β· H2O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| C | Carbon | |
| C | β Cerussite | PbCO3 |
| C | β Smithsonite | ZnCO3 |
| O | Oxygen | |
| O | β Cerussite | PbCO3 |
| O | β Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| O | β Smithsonite | ZnCO3 |
| Si | Silicon | |
| Si | β Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| S | Sulfur | |
| S | β Galena | PbS |
| S | β Sphalerite | ZnS |
| Zn | Zinc | |
| Zn | β Hemimorphite | Zn4Si2O7(OH)2 · H2O |
| Zn | β Smithsonite | ZnCO3 |
| Zn | β Sphalerite | ZnS |
| Ag | Silver | |
| Ag | β Silver | Ag |
| Pb | Lead | |
| Pb | β Cerussite | PbCO3 |
| Pb | β Galena | PbS |
Other Databases
| Link to USGS MRDS: | 10076658 |
|---|
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 #0060270212
