Ohio Diggings Mine (Mackey Ranch Mine; McKay Ranch deposit), Jamestown, Jamestown Mining District, Mother Lode belt, Tuolumne County, California, USAi
| Regional Level Types | |
|---|---|
| Ohio Diggings Mine (Mackey Ranch Mine; McKay Ranch deposit) | Mine |
| Jamestown | Census-designated Place |
| Jamestown Mining District | Mining District |
| Mother Lode belt | - not defined - |
| Tuolumne County | County |
| California | State |
| USA | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
37° 55' 7'' North , 120° 26' 25'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Jamestown | 3,433 (2011) | 4.1km |
| Chinese Camp | 126 (2011) | 5.3km |
| Tuttletown | 668 (2011) | 8.3km |
| Sonora | 4,818 (2017) | 8.9km |
| East Sonora | 2,266 (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 |
|---|---|---|
| Calaveras Gem & Mineral Society | Angels Camp, California | 19km |
Mindat Locality ID:
98046
Long-form identifier:
mindat:1:2:98046:2
GUID (UUID V4):
559b1e2d-bb79-4625-97c8-89b88003f507
A former Cu-Au-Ag-W occurrence/deposit/mine located in secs. 21 & 28, T1N, R14E (MDM), about 2½ miles S of Jamestown, on private land. Operated in 1915. MRDS database stated accuracy for this location is 500 meters.
Mineralization is a vein deposit hosted in schist and serpentinite. The ore body is lenticular and has a thickness of 3.05 meters. Ore is comprised of oxides and sulfides of Cu. Local rocks include ultramafic rocks, chiefly Mesozoic, unit 2 (Western Sierra Nevada and Klamath Mountains).
Workings include underground openings with an overall depth of 38.1 meters, and comprised of 1 shaft.
Production data are found in: Logan, C.A. (1928): 7.
12 tons of ore were shipped in 1915. This ore was extracted from a vein 1 foot wide. It assayed at 9% Cu and $2.50 (period values) per ton of Au & Ag.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Azurite Formula: Cu3(CO3)2(OH)2 |
| ⓘ Chalcopyrite Formula: CuFeS2 |
| ⓘ Malachite Formula: Cu2(CO3)(OH)2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Chalcopyrite | 2.CB.10a | CuFeS2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Azurite | 5.BA.05 | Cu3(CO3)2(OH)2 |
| ⓘ | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| H | ⓘ Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| C | ⓘ Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| O | ⓘ Malachite | Cu2(CO3)(OH)2 |
| S | Sulfur | |
| S | ⓘ Chalcopyrite | CuFeS2 |
| Fe | Iron | |
| Fe | ⓘ Chalcopyrite | CuFeS2 |
| Cu | Copper | |
| Cu | ⓘ Azurite | Cu3(CO3)2(OH)2 |
| Cu | ⓘ Chalcopyrite | CuFeS2 |
| Cu | ⓘ Malachite | Cu2(CO3)(OH)2 |
Other Databases
| Link to USGS MRDS: | 10077898 |
|---|
Other Regions, Features and Areas containing this locality
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
