Sigma Mine (White Monster Mine; Sigma-White Monster Mine), Ryan, Furnace Creek Mining District (Furnace Creek Borate Mining District), Inyo County, California, USAi
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Latitude & Longitude (WGS84):
36° 19' 16'' North , 116° 41' 35'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Tecopa | 150 (2011) | 67.2km |
A former borate mine located in sec. 7, T25N, R3E, SBM, 2.0 km (6,600 feet) W of Ryan, along Furnace Creek Wash, on National Park Service land (Death Valley National Park). Owned by Tennaco Mining Inc.; U.S. Borax and Chemical Corp. (time frames unknown). MRDS database stated accuracy for this location is 100 meters.
NOTE: This locality was stated as being outside the boundaries of the National Park; however, the USGS MRDS database file states that it is now on National Park land.
At the junction of the Ryan and Dantes View roads a gravel access branches off to the southwest, currently used in connection with mining operations on the Sigma-White Monster ore body.Greene, 1981
Local rocks include Quaternary alluvium and marine deposits.
Workings include unspecified surface openings (topo map reflects a large open pit).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Calcite Formula: CaCO3 |
| ⓘ Colemanite Formula: Ca[B3O4(OH)3] · H2O |
| ⓘ Ulexite Formula: NaCa[B5O6(OH)6] · 5H2O |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 5 - Nitrates and Carbonates | |||
|---|---|---|---|
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| Group 6 - Borates | |||
| ⓘ | Colemanite | 6.CB.10 | Ca[B3O4(OH)3] · H2O |
| ⓘ | Ulexite | 6.EA.25 | NaCa[B5O6(OH)6] · 5H2O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Colemanite | Ca[B3O4(OH)3] · H2O |
| H | ⓘ Ulexite | NaCa[B5O6(OH)6] · 5H2O |
| B | Boron | |
| B | ⓘ Colemanite | Ca[B3O4(OH)3] · H2O |
| B | ⓘ Ulexite | NaCa[B5O6(OH)6] · 5H2O |
| C | Carbon | |
| C | ⓘ Calcite | CaCO3 |
| O | Oxygen | |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Colemanite | Ca[B3O4(OH)3] · H2O |
| O | ⓘ Ulexite | NaCa[B5O6(OH)6] · 5H2O |
| Na | Sodium | |
| Na | ⓘ Ulexite | NaCa[B5O6(OH)6] · 5H2O |
| Ca | Calcium | |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Colemanite | Ca[B3O4(OH)3] · H2O |
| Ca | ⓘ Ulexite | NaCa[B5O6(OH)6] · 5H2O |
Other Databases
| Link to USGS MRDS: | 10260537 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Basin and Range BasinsBasin
- Mojave DomainDomain
- Southern Basin and RangeWide Rift
USA
- Death Valley National ParkNational Park
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID #0060271260





Sigma Mine, Ryan, Furnace Creek Mining District, Inyo County, California, USA