La Joya Mine, Oakville, Oakville Mining District, Napa County, California, USAi
| Regional Level Types | |
|---|---|
| La Joya Mine | Mine |
| Oakville | - not defined - |
| Oakville Mining District | Mining District |
| Napa County | County |
| California | State |
| USA | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
38° 26' 22'' North , 122° 28' 16'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Rutherford | 164 (2017) | 4.6km |
| Kenwood | 1,028 (2011) | 7.1km |
| Saint Helena | 5,814 (2013) | 7.3km |
| Glen Ellen | 784 (2011) | 9.6km |
| Deer Park | 1,267 (2011) | 10.4km |
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 |
|---|---|---|
| Santa Rosa Mineral And Gem Society, Inc. | Santa Rosa, California | 21km |
| Vallejo Gem & Mineral Society | Vallejo, California | 42km |
Mindat Locality ID:
83676
Long-form identifier:
mindat:1:2:83676:3
GUID (UUID V4):
7501236c-b429-4732-990a-8595bb1a831d
A former Hg mine located in sec. 24, T7N, R6W (MD), about 7 miles W of Oakville. Owned by Mr. James Doherty. Discovered 1865. Operated 1873, 1915 - 1918, 1929 - 1934, 1936 - 1939, and 1942.
Mineralization is hosted in serpentinite. Aphanitic volcanic rock is the associated unit. The ore bodies are pods striking N50W, dipping SW at 10.97 meters thick, 91.44 meters wide and 53.34 meters long. Alteration is local as silica alteration of serpentine. Ore control was changes in fault attitudes and brecciation of the silica-carbonate rock.
Workings include underground openings totaling 16615.44 meters in length and 76.2 meters deep.
Production data are found in U.S.Bureau of Mines file data. Ore was more than 5-12 pounds/ton (4,292 g/mt).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Cinnabar Formula: HgS Description: The principal ore mineral here. Occurs in veinlets of chalcedony and in brecciated silica carbonate rock that is found in sheared and faulted contacts of serpentine, sandstone and shale. References: |
| ⓘ Mercury Formula: Hg References: |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Quartz var. Chalcedony Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Mercury | 1.AD.05 | Hg |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Cinnabar | 2.CD.15a | HgS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz var. Chalcedony | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
List of minerals for each chemical element
| O | Oxygen | |
|---|---|---|
| O | ⓘ Quartz var. Chalcedony | SiO2 |
| O | ⓘ Quartz | SiO2 |
| Si | Silicon | |
| Si | ⓘ Quartz var. Chalcedony | SiO2 |
| Si | ⓘ Quartz | SiO2 |
| S | Sulfur | |
| S | ⓘ Cinnabar | HgS |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Hg | Mercury | |
| Hg | ⓘ Cinnabar | HgS |
| Hg | ⓘ Mercury | Hg |
Other Databases
| Link to USGS MRDS: | 10040858 |
|---|
Other Regions, Features and Areas containing this locality
North America
- Coast MountainsMountain Range
North America PlateTectonic Plate
- Franciscan DomainDomain
USA
- California
- Mayacamas MountainsMountain Range
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
