Quartz Glenn Mine (Quartz Glen Mine; Foote and Thompson Mine; Foote & Thompson Mine), Rich Gulch, Rich Gulch Mining District, East Belt, Calaveras County, California, USAi
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Latitude & Longitude (WGS84):
38° 20' 16'' North , 120° 37' 46'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Mokelumne Hill | 646 (2011) | 7.9km |
| Red Corral | 1,413 (2017) | 8.5km |
| Pine Grove | 2,219 (2011) | 8.7km |
| Rail Road Flat | 475 (2015) | 10.1km |
| West Point | 674 (2011) | 11.2km |
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 |
|---|---|---|
| Amador County Gem & Mineral Society | Sutter Creek, California | 16km |
| Calaveras Gem & Mineral Society | Angels Camp, California | 31km |
| El Dorado County Mineral and Gem Society | Placerville, California | 46km |
| Gold Country Treasure Seekers | Placerville, California | 46km |
A former lode Au mine located in the SW¼ sec. 26 and in the NW¼ sec. 35, T6N, R12E, MDM, 0.8 km (0.5 mile) N of Rich Gulch (town) (5 miles NE of Mokelumne Hill [town]). Property was comprised of patented quartz and placer claims. MRDS database stated accuracy for this location is 500 meters.
Mineralization is a vein, pocket and ore shoots deposit hosted in Late Permian granodiorite and schist. The ore body strikes NNW and dips E at an average thickness of 5 to 6 feet (1.6 to 1.82 meters). Situated between the contact of granodiorite on the W and mica schist on the E. The ore shoot in the 2nd adit is 120 feet wide and pitches N. Good ore pockets are present. Local rocks include Paleozoic marine rocks, undivided, unit 4 (Western Sierra Nevada) and/or Mesozoic granitic rocks, unit 3 (Sierra Nevada, Death Valley area, Northern Mojave Desert and Transverse Ranges).
Workings include surface and underground openings comprised of 3 adits. No. 1 adit is a crosscut to the vein at 324 feet in lenght. The No. 2 & No. 3 adits follow the vein 1,563 feet and 1,100 feet, respectively. At least 1 shaft at 120 feet deep.
Total output is unknown. Older records indicate more than $300,000 (period values). $200,000 (period values) in 1872 for a 2-years run on ore taken out to a depth of 200 feet.
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: | 10028944 |
|---|
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 #0060090546
