Pescia prospect (Pescia deposit), Sheep Ranch, Mountain Ranch Mining District, East Belt, Calaveras County, California, USAi
| Regional Level Types | |
|---|---|
| Pescia prospect (Pescia deposit) | Prospect |
| Sheep Ranch | Ranch |
| Mountain Ranch Mining District | Mining District |
| East Belt | - not defined - |
| Calaveras County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
38° 12' 42'' North , 120° 26' 5'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Fort Jones | 643 (2006) | 5.3km |
| Forest Meadows | 1,249 (2015) | 5.4km |
| Avery | 646 (2011) | 5.7km |
| Murphys | 2,213 (2015) | 8.5km |
| Arnold | 3,843 (2011) | 8.8km |
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 | 18km |
| Amador County Gem & Mineral Society | Sutter Creek, California | 38km |
A Mn occurrence/prospect located in sec. 9, T4N, R14E, MDM, 2.5 km (1.5 miles) E of Sheep Ranch, along San Antonio Creek (on the S side (E slope) of San Antonio Creek and about 250 feet above the creek; 6 miles N of Murphys) MRDS database stated accuracy for this location is 1,000 meters.
Several stubby lenses of manganese-bearing metachert occur in thin-bedded quartz-sericite schist. Small lenses of partly oxidized quartz-manganese-garnet rock lie within the larger lenses of metachert. No good oxide ore was developed. The prospect has no economic value as a present source of Mn. Local rocks include Paleozoic marine rocks, undivided, unit 4 (Western Sierra Nevada).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Rhodonite Formula: CaMn3Mn[Si5O15] References: |
| ⓘ Spessartine Formula: Mn2+3Al2(SiO4)3 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 9 - Silicates | |||
|---|---|---|---|
| ⓘ | Spessartine | 9.AD.25 | Mn2+3Al2(SiO4)3 |
| ⓘ | Rhodonite | 9.DK.05 | CaMn3Mn[Si5O15] |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Rhodonite | CaMn3Mn[Si5O15] |
| O | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
| Al | Aluminium | |
| Al | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
| Si | Silicon | |
| Si | ⓘ Rhodonite | CaMn3Mn[Si5O15] |
| Si | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
| Ca | Calcium | |
| Ca | ⓘ Rhodonite | CaMn3Mn[Si5O15] |
| Mn | Manganese | |
| Mn | ⓘ Rhodonite | CaMn3Mn[Si5O15] |
| Mn | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
Other Databases
| Link to USGS MRDS: | 10029474 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Shoofly-Olds Ferry DomainDomain
- Sierra Nevada BatholithVolcanic Arc
USA
- Sierra NevadaMountain Range
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