Little Gulch Mine (Little Gulch; Opal and Red Wonder claims), Bummerville, West Point Mining District, East Belt, Calaveras County, California, USAi
| Regional Level Types | |
|---|---|
| Little Gulch Mine (Little Gulch; Opal and Red Wonder claims) | Mine |
| Bummerville | - not defined - |
| West Point Mining District | Mining District |
| East Belt | - not defined - |
| Calaveras County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
38° 24' 6'' North , 120° 29' 23'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| West Point | 674 (2011) | 3.3km |
| Buckhorn | 2,429 (2017) | 6.6km |
| Rail Road Flat | 475 (2015) | 6.8km |
| Pioneer | 1,094 (2011) | 7.9km |
| Red Corral | 1,413 (2017) | 10.1km |
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 |
|---|---|---|
| Amador County Gem & Mineral Society | Sutter Creek, California | 27km |
| Calaveras Gem & Mineral Society | Angels Camp, California | 37km |
| El Dorado County Mineral and Gem Society | Placerville, California | 45km |
| Gold Country Treasure Seekers | Placerville, California | 45km |
Mindat Locality ID:
75504
Long-form identifier:
mindat:1:2:75504:2
GUID (UUID V4):
a6b2e6a8-3724-4abe-bf5b-f5d058e6ae33
A former lode Au-Pb occurrence/group of claims/mine located in sec. 1, T6N, R13E, MDM, 1.3 km (0.8 mile) E of Bummerville (2½ miles E of West Point). Operated during the period 1935 to 1936. MRDS database stated accuracy for this location is 500 meters.
Mineralization is a vein deposit hosted in granodiorite and diorite. The ore body strikes N and dips 80W at a thickness of 1.07 meters. The veins are high-grade, small and parallel, from 0.5 to 3.5 feet thick. A small amount of talc gouge on the side of the veins). The best ore occurs near the intersections with the diorite dikes. Abundant sulfides are present. Several diorite dikes intersect the veins. Local rocks include Mesozoic granitic rocks, unit 3 (Sierra Nevada, Death Valley area, Northern Mojave Desert and Transverse Ranges).
Workings include underground openings with an overall depth of 76.2 meters and comprised of a 250 foot shaft with levels at 45 and 90 feet. A 125 foot drift driven N on the 45 foot level, and a 30 foot drift was driven E on the 90 foot level. The drifts total 200 feet.
Production data are found in: Logan, Clarence August and Franke, H. (1936).
Analytical data results: The ore assayed from $90 to $220 per ton (period values).
High-grade ore was encountered on the 45 foot level.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Galena Formula: PbS |
| ⓘ Gold Formula: Au |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Talc Formula: Mg3Si4O10(OH)2 Description: Occurs in gouge on sides of the vein. |
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 |
| Group 9 - Silicates | |||
| ⓘ | Talc | 9.EC.05 | Mg3Si4O10(OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Talc | Mg3Si4O10(OH)2 |
| O | Oxygen | |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Talc | Mg3Si4O10(OH)2 |
| Mg | Magnesium | |
| Mg | ⓘ Talc | Mg3Si4O10(OH)2 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Talc | Mg3Si4O10(OH)2 |
| 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: | 10029277 |
|---|
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References
