Early Mine (Early claim; George placer; Felix Lode claim; Revel claim; Revel No. 2 claim; Louisa claim), Sweetwater Point, Jerseydale Mining District, East Belt, Mariposa County, California, USAi
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Latitude & Longitude (WGS84):
37° 34' 15'' North , 119° 52' 25'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
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 |
|---|---|---|
| Mariposa Gem & Mineral Club | Mariposa, California | 13km |
A former lode Au-Ag-Cu-Pb-W mine located in secs. 20 & 21, T4S, R19E, MDM, 1.1 km (3,500 feet) E of Sweetwater Point and 1.7 km (5,600 feet) WNW of Jerseydale, on private land within a National Foreat area. Discovered before 1884. The property consists of 80 patented acres. Operated 1909-1914, 1917-1920, 1932-1933, 1934-1946, and ~ to 1952. Operated by Robin H. and Edythe E. Jackson. MRDS database stated accuracy for this location is 500 meters.
Mineralization is a vein deposit with 2 sets of veins, hosted in quartz diorite. The ore body is tabular and pinch & swell in form, strikes N25E and dips 60SE at a thickness of 1.83 meters. The 2 sets of veins cut hornblende diorite. Most veins average 2 to 3 feet in thickness but widen to as much as 6 feet locally. The ore consists of argentiferous galena, and a high percentage of sulfide. Showings of scheelite in the vein matter and in the quartz diorite. Most high-grade scheelite is in stringers 2 to 4 inches (5 to 10 cm wide. Local rocks include Paleozoic marine rocks, undivided, unit 4 (Western Sierra Nevada).
Workings include surface and underground openings and operations with an overall depth of 45.72 meters and comprised of a 150 foot shaft with several hundred feet of drifts. An 800 foot adit was stoped to a height of 150 feet. There is a 40 foot crosscut tunnel. Another shaft 16 feet deep, adits, surface trenches and bulldozer cuts are also present.
Production data are found in: Bowen, O.E., Jr. & C.H. Gray, Jr. (1957).
Worked intermittently. Total recorded production for the period 1909-1952 was $22,600 (period values). Besides table figures, in 1932-1933, several hundred tons yielded 264.47 ounces of Au and 147 ounces of Ag.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Galena Formula: PbS |
| ⓘ Galena var. Silver-bearing Galena Formula: PbS with Ag |
| ⓘ Native Gold Formula: Au |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Scheelite Formula: Ca(WO4) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | var. Silver-bearing Galena | 2.CD.10 | PbS with Ag |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Scheelite | 7.GA.05 | Ca(WO4) |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Scheelite | Ca(WO4) |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
| Ca | Calcium | |
| Ca | ⓘ Scheelite | Ca(WO4) |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Ag | Silver | |
| Ag | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
| W | Tungsten | |
| W | ⓘ Scheelite | Ca(WO4) |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
| Pb | ⓘ Galena var. Silver-bearing Galena | PbS with Ag |
Other Databases
| Link to USGS MRDS: | 10102920 |
|---|
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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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID #0060430637
