St. Lawrence Mine (Guadalupe and St. Louis; St. Lawrence No .2; North St. Lawrence), Kelsey, Kelsey Mining District, El Dorado County, California, USAi
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Latitude & Longitude (WGS84):
38° 49' 31'' North , 120° 50' 8'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Coloma | 529 (2011) | 5.5km |
| Georgetown | 2,367 (2011) | 9.1km |
| Cold Springs | 446 (2011) | 9.7km |
| Placerville | 10,650 (2017) | 11.1km |
| Auburn Lake Trails | 3,426 (2011) | 14.2km |
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 |
|---|---|---|
| El Dorado County Mineral and Gem Society | Placerville, California | 11km |
| Gold Country Treasure Seekers | Placerville, California | 11km |
| Roseville Rock Rollers | Roseville, California | 40km |
| Nevada County Gem & Mineral Society | Grass Valley, California | 48km |
| Amador County Gem & Mineral Society | Sutter Creek, California | 48km |
A former lode Au occurrence/mine located in secs. 2, 3 & 11, T11N, R10E, MDM, about 4 km NNW of Kelsey and about 4 km (1½ miles SE of Garden Valley) SSE of Garden Valley, S of Irish Creek, on private land. MRDS database stated accuracy for this location is 1,000 meters.
Mineralization is a vein deposit hosted in Late Jurassic slate. The ore body strikes N10W and dips 60NE. The deposit is a 6 foot thick vein on the Mother Lode. Ore occurs in lenticular forms, but not continuing for any great distance, but invariably returning in similar veins along the same fissure. At 550 feet of depth in the main shaft, the quartz is said to give out to fault gouge which 160 feet N of the shaft at the 500 foot level, is 5 feet thick with slickensides on both walls. Local rocks include Jurassic marine rocks, unit 1 (Western Sierra Nevada and Western Klamath Mountains).
Workings include underground openings comprised of a 900 foot inclined shaft with levels at 100, 200 & 900 foot levels with a winze from the 900 foot level.
Production data are found in: Clark, Wm. B. & D.W. Carlson (1956).
Production statistics: Year: 1878 (period = 1867 to 1878)(accurate): Au @ 18 grams/metric ton. Ore ranged from $8.54 to $27.00 (period values) Au/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: | 10006936 |
|---|
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
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file #0060170379
