Gentle Annie Mine (Accidental claim; Independence claim; Belle Humming-Bird claim; Poverty Point claim; Logan claim; McNeil claim; South Extension of Napier and Surplus claim; Sobrante claim; Lion claim; Jackson claim), Placerville (Hangtown), Placerville Mining District, El Dorado County, California, USAi
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Latitude & Longitude (WGS84):
38° 44' 53'' North , 120° 48' 12'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Placerville | 10,650 (2017) | 2.1km |
| Cold Springs | 446 (2011) | 5.8km |
| Diamond Springs | 11,037 (2011) | 6.0km |
| Deer Park | 1,384 (2018) | 7.6km |
| Coloma | 529 (2011) | 9.5km |
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 | 2km |
| Gold Country Treasure Seekers | Placerville, California | 2km |
| Amador County Gem & Mineral Society | Sutter Creek, California | 39km |
| Roseville Rock Rollers | Roseville, California | 42km |
| Fossils for Fun Society, Inc. | North Highlands, California | 50km |
Mindat Locality ID:
77629
Long-form identifier:
mindat:1:2:77629:4
GUID (UUID V4):
50a83a6d-89b3-4732-88f3-08493e7301de
A former lode Au-Pb occurrence/mine located in the NE¼ sec. 6, T10N, R11E, MDM, about 2.6 km NW of Placerville proper, E and N of Big Canyon. Property comprises 33.47 acres. MRDS database stated accuracy for this location is 500 meters. Now part of the River Hill group.
Mineralization is a vein deposit hosted in black slate. The ore body strikes N30W and dips 70E at a thickness of 12.19 meters. There are 2 parallel veins from 50 to 80 feet apart and from 10 to 40 feet thick. Quartz is interstratified with black slate. The ore contains 2 to 2½% sulfides. An adit run years ago on this claim was reported to have passed through a belt of black slate 97 feet wide at a depth of 250 feet. Thought to be an extension of the Chili Bar quarry. Not developed. Local rocks include Jurassic marine rocks, unit 1 (Western Sierra Nevada and Western Klamath Mountains).
Workings include underground openings with an overall depth of 91.44 meters and comprised of a 300 foot shaft with several levels and extensive drifting.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Galena Formula: PbS |
| ⓘ Gold Formula: Au |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| 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 |
| S | Sulfur | |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Au | Gold | |
| Au | ⓘ Gold | Au |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS MRDS: | 10007049 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Calaveras-Baker DomainDomain
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 #0060170675
