Telegraph Mine (Diamond J), Telegraph City, Foothill Copper Belt, Calaveras County, California, USAi
| Regional Level Types | |
|---|---|
| Telegraph Mine (Diamond J) | Mine |
| Telegraph City | Unincorporated Community (Former) |
| Foothill Copper Belt | Belt |
| Calaveras County | County |
| California | State |
| USA | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
37° 54' 41'' North , 120° 43' 42'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Copperopolis | 3,671 (2011) | 10.8km |
| East Oakdale | 2,762 (2011) | 15.2km |
| Valley Home | 228 (2011) | 18.6km |
| Oakdale | 22,259 (2017) | 19.2km |
| Farmington | 207 (2011) | 23.9km |
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 |
|---|---|---|
| Calaveras Gem & Mineral Society | Angels Camp, California | 24km |
| Mother Lode Mineral Society | Modesto, California | 38km |
| Stockton Lapidary & Mineral Club | Stockton, California | 50km |
A former Cu mine located in sec. 26, T1N, R11E, MDM, 2.8 km (1.7 miles) SSE of Telegraph City, S of Hog Hill, near the Stanislaus County line. Owned by L. Shumate (1916). MRDS database stated accuracy for this location is 100 meters.
Mineralization is a vein Cu deposit hosted in greenstone. The ore body strikes NW and dips NE. The vein is pyritic greenstone. Local alteration includes pyritization. Local rocks include Mesozoic volcanic rocks, unit 2 (Western Sierra Foothills and Western Klamath Mountains).
Workings include underground openings with an overall depth of 36.58 meters and comprised of 1 shaft.
Production in 1865 and 1914: None reported.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Pyrite Formula: FeS2 Description: Occurs as an alteration product in greenstone. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
List of minerals for each chemical element
| S | Sulfur | |
|---|---|---|
| S | ⓘ Chalcopyrite | CuFeS2 |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Fe | ⓘ Pyrite | FeS2 |
| Cu | Copper | |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
Other Databases
| Link to USGS MRDS: | 10028632 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- California Central ValleyAccretionary Complex
- Great Valley DomainDomain
This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to
visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders
for access and that you are aware of all safety precautions necessary.
References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID #0060090160
Bramel, Hadley R., Heyl, George R., Cox, Manning W., Ransome, Alfred L., Eric, John H., Wyant, Donald G. (1948) Copper in California. Bulletin 144. California State Mining Bureau p.223
