Ponderosa prospect, Soapstone Hill, Murphys, Murphys Mining District (Esmeralda Mining District; Sperry Mining District), East Belt, Calaveras County, California, USAi
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Latitude & Longitude (WGS84):
38° 8' 20'' North , 120° 30' 51'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Murphys | 2,213 (2015) | 4.6km |
| Vallecito | 442 (2011) | 6.5km |
| Angels Camp | 2,677 (2012) | 8.2km |
| Forest Meadows | 1,249 (2015) | 10.0km |
| Mountain Ranch | 1,628 (2011) | 10.2km |
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
Local clubs are the best way to get access to collecting localities
| Club | Location | Distance |
|---|---|---|
| Calaveras Gem & Mineral Society | Angels Camp, California | 8km |
| Amador County Gem & Mineral Society | Sutter Creek, California | 38km |
An Fe occurrence located in the SW¼NE¼ sec. 2, T3N, R13E, MDM, 1.0 km (0.6 mile) E of Soapstone Hill (coordinates of record) (2 miles SE of Esmeralda by Ponderosa Way). MRDS database stated accuracy for this location is .
Mineralization is massive magnetite ore interlayered with antigorite (observed on the dump). The magnetite layers are as much as ½ inch (1.25 cm) thick. Most of the rock shopws less than 50% magnetite. Local rocks include Paleozoic marine rocks, undivided, unit 4 (Western Sierra Nevada).
Workings include surface openings comprised of a shallow prospect open pit.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Antigorite Formula: Mg3(Si2O5)(OH)4 Description: Interlayered with magnetite. |
| ⓘ Magnetite Formula: Fe2+Fe3+2O4 Description: Interlayered with antigorite. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Magnetite | 4.BB.05 | Fe2+Fe3+2O4 |
| Group 9 - Silicates | |||
| ⓘ | Antigorite | 9.ED.15 | Mg3(Si2O5)(OH)4 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Antigorite | Mg3(Si2O5)(OH)4 |
| O | Oxygen | |
| O | ⓘ Antigorite | Mg3(Si2O5)(OH)4 |
| O | ⓘ Magnetite | Fe2+Fe23+O4 |
| Mg | Magnesium | |
| Mg | ⓘ Antigorite | Mg3(Si2O5)(OH)4 |
| Si | Silicon | |
| Si | ⓘ Antigorite | Mg3(Si2O5)(OH)4 |
| Fe | Iron | |
| Fe | ⓘ Magnetite | Fe2+Fe23+O4 |
Other Databases
| Link to USGS MRDS: | 10029039 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Shoofly-Olds Ferry DomainDomain
- Sierra Nevada BatholithVolcanic Arc
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