Argonaut Mine (Aultman; Aultran; Golden Unit; Argonaut Fraction), Greenwood, Greenwood District, Northwest Segment Mother Lode, El Dorado County, California, USAi
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Latitude & Longitude (WGS84):
38° 53' 26'' North , 120° 53' 9'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Georgetown | 2,367 (2011) | 4.5km |
| Auburn Lake Trails | 3,426 (2011) | 6.3km |
| Coloma | 529 (2011) | 10.1km |
| Cool | 4,100 (2017) | 11.2km |
| Foresthill | 1,483 (2011) | 15.6km |
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 |
|---|---|---|
| El Dorado County Mineral and Gem Society | Placerville, California | 19km |
| Gold Country Treasure Seekers | Placerville, California | 19km |
| Roseville Rock Rollers | Roseville, California | 38km |
| Nevada County Gem & Mineral Society | Grass Valley, California | 40km |
| Fossils for Fun Society, Inc. | North Highlands, California | 48km |
A former lode Au mine located near the center of sec. 17, T12N, R10E, MDM, 2.3 km (1.5 miles) ESE of greenwood, along Georgetown Creek (1 mile W of Fornis), on private land. Property comprises 19.7 acres. Operated by El Dorado Argonaut Mines, C/O J. A. Sisler. Operated in the 1880's, 1921, and 1927 to 1928. MRDS database stated accuracy for this location is 100 meters.
Mineralization is a deposit on the Mother Lode hosted in schist. The ore body is 4.57 meters thick. Ore occurs in pockets. Local rocks include Mesozoic volcanic rocks, unit 2 (Western Sierra Foothills and Western Klamath Mountains) and/or Jurassic marine rocks, unit 1 (Western Sierra Nevada and Western Klamath Mountains).
Workings include surface and underground openings. with an overall depth of 52.12 meters and comprised of a 405 foot drift adit to a depth of 171 feet. A 10-stamp mill was installed and was later replaced by a Gibson mill.
The ore yielded up to $15 (period values) Au per ton.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Native Gold Formula: Au |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
Other Databases
| Link to USGS MRDS: | 10101122 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Calaveras-Baker DomainDomain
- Sierra Nevada BatholithVolcanic Arc
USA
- California
- Mother Lode BeltBelt
- Sierra NevadaMountain Range
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 #0060170546 & 0060170047
