Ilex Mine (Anglo-Saxon Mine; Tiger Mine), Rich Gulch, Rich Gulch Mining District, East Belt, Calaveras County, California, USAi
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Latitude & Longitude (WGS84):
38° 19' 35'' North , 120° 37' 12'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Mokelumne Hill | 646 (2011) | 8.1km |
| Rail Road Flat | 475 (2015) | 9.4km |
| Red Corral | 1,413 (2017) | 9.6km |
| Pine Grove | 2,219 (2011) | 10.2km |
| West Point | 674 (2011) | 11.4km |
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 | 18km |
| Calaveras Gem & Mineral Society | Angels Camp, California | 30km |
| El Dorado County Mineral and Gem Society | Placerville, California | 47km |
| Gold Country Treasure Seekers | Placerville, California | 47km |
A former Au-Pb-Sb-Cu mine located in the SE¼ sec. 35, T6N, R12E, MDM, 1.1 km (0.7 mile) ESE of Rich Gulch (town), and 6 miles E of Mokelumne Hill (2½ miles SW of Glenco). Operated during the periods of the 1850s and 1860s to the 1890s, 1935 to 1943, and 1945 to 1948. MRDS database stated accuracy for this location is 100 meters.
Mineralization is a vein deposit hosted in schist and plutonic rock. The ore body strikes N70-85E and dips 85S. There are at least 7 parallel veins with strike from N70 to 85E, and steeply dipping. The main vein is the Ilex in the center of the vein system. Country rock is coarse schist and impure quartzite with granodiorite gneiss to the N. Diorite dikes are associated with the veins. Local rocks include Palaeozoic marine rocks, undivided, unit 4 (Western Sierra Nevada).
Workings include surface and underground openings comprised of a 270-foot shaft, both inclined and vertical, plus a 100-foot drift. There is an adit on the Ilex vein with several shorter drifts on other veins. There are also numerous open cuts.
Local structures include diorite dikes associated with veins.
Production data are found in: Clark (1962).
Mineralization is a vein deposit hosted in schist and plutonic rock. The ore body strikes N70-85E and dips 85S. There are at least 7 parallel veins with strike from N70 to 85E, and steeply dipping. The main vein is the Ilex in the center of the vein system. Country rock is coarse schist and impure quartzite with granodiorite gneiss to the N. Diorite dikes are associated with the veins. Local rocks include Palaeozoic marine rocks, undivided, unit 4 (Western Sierra Nevada).
Workings include surface and underground openings comprised of a 270-foot shaft, both inclined and vertical, plus a 100-foot drift. There is an adit on the Ilex vein with several shorter drifts on other veins. There are also numerous open cuts.
Local structures include diorite dikes associated with veins.
Production data are found in: Clark (1962).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Galena Formula: PbS |
| ⓘ Native Gold Formula: Au |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Stibnite Formula: Sb2S3 |
| ⓘ 'Tetrahedrite Subgroup' Formula: Cu6(Cu4C2+2)Sb4S12S |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Gold | 1.AA.05 | Au |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Galena | 2.CD.10 | PbS |
| ⓘ | Stibnite | 2.DB.05 | Sb2S3 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | 'Tetrahedrite Subgroup' | 2.GB.05 | Cu6(Cu4C2+2)Sb4S12S |
| 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 | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Galena | PbS |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Stibnite | Sb2S3 |
| S | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Sb | Antimony | |
| Sb | ⓘ Stibnite | Sb2S3 |
| Sb | ⓘ Tetrahedrite Subgroup | Cu6(Cu4C22+)Sb4S12S |
| Au | Gold | |
| Au | ⓘ Native Gold | Au |
| Pb | Lead | |
| Pb | ⓘ Galena | PbS |
Other Databases
| Link to USGS MRDS: | 10102675 |
|---|
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 #0060090549
Turner, Henry Ward (1894) Notes on the gold ores of California. American Journal of Science, 3rd series: 47: 467-473.[…(abstract): Zeitschr., prakt. Geologie, Jahrg. 4: 275 (1896)]: 468.
