Lubanko prospect, Fiddletown (Oleta), Fiddletown Mining District (Oleta Mining District), Amador County, California, USAi
| Regional Level Types | |
|---|---|
| Lubanko prospect | Prospect |
| Fiddletown (Oleta) | - not defined - |
| Fiddletown Mining District (Oleta Mining District) | Mining District |
| Amador County | County |
| California | State |
| USA | Country |
This page is currently not sponsored. Click here to sponsor this page.
Latitude & Longitude (WGS84):
38° 28' 13'' North , 120° 44' 50'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Fiddletown | 235 (2011) | 3.8km |
| River Pines | 379 (2011) | 8.5km |
| Plymouth | 960 (2017) | 8.6km |
| Amador City | 189 (2017) | 8.8km |
| Sutter Creek | 2,488 (2017) | 9.8km |
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 | 10km |
| El Dorado County Mineral and Gem Society | Placerville, California | 29km |
| Gold Country Treasure Seekers | Placerville, California | 29km |
| Calaveras Gem & Mineral Society | Angels Camp, California | 48km |
A Mn occurrence/mine located in the SE¼ sec. 10, T7N, R11E (MDM), 3.8 km (2.4 miles) S of Fiddletown, on private lease land. Discovered in 1942. Owned by Louis Lubanko, California (1974). Operated by Dr Joseph T. Stacy, California (1974). MRDS database stated accuracy for this location is 1,000 meters. The property was leased by Dr. Stacy during WWII. Idle since WWII.
The ore body strikes N50E and dips 20-30NW at a thickness of 1.22 meters and a length of24.38 meters. Lenses of psilomelane and some pyrolusite, 1 to 3 feet thick, occur in massive metachert. The metachert is enclosed in rhythmically bedded metachert with original shale partings. Some occurrence of rhodochrosite is shown. The lenses grade into low-grade ore. An ore body 80 feet long has been exposed by the development work. Rhodonite was mined in 1955 and 1956 for gemstone material. Local rocks include Paleozoic marine rocks, undivided, unit 4 (Western Sierra Nevada).
Workings include surface and underground openings comprised of 2 fairly large cuts and 2 small adits.
A few truck loads of Mn ore were mined and shipped with a part of a shipment from the Stirnaman Mine. The small amount of ore shipped averaged 52% Mn, 3% Fe, & 4.5% silica.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Alleghanyite Formula: Mn2+5(SiO4)2(OH)2 |
| ⓘ 'Psilomelane' |
| ⓘ Pyrolusite Formula: Mn4+O2 |
| ⓘ Rhodochrosite Formula: MnCO3 |
| ⓘ Tephroite Formula: Mn2+2SiO4 Description: Occurs in nodules. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Pyrolusite | 4.DB.05 | Mn4+O2 |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Rhodochrosite | 5.AB.05 | MnCO3 |
| Group 9 - Silicates | |||
| ⓘ | Tephroite | 9.AC.05 | Mn2+2SiO4 |
| ⓘ | Alleghanyite | 9.AF.45 | Mn2+5(SiO4)2(OH)2 |
| Unclassified | |||
| ⓘ | 'Psilomelane' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Alleghanyite | Mn52+(SiO4)2(OH)2 |
| C | Carbon | |
| C | ⓘ Rhodochrosite | MnCO3 |
| O | Oxygen | |
| O | ⓘ Alleghanyite | Mn52+(SiO4)2(OH)2 |
| O | ⓘ Pyrolusite | Mn4+O2 |
| O | ⓘ Rhodochrosite | MnCO3 |
| O | ⓘ Tephroite | Mn22+SiO4 |
| Si | Silicon | |
| Si | ⓘ Alleghanyite | Mn52+(SiO4)2(OH)2 |
| Si | ⓘ Tephroite | Mn22+SiO4 |
| Mn | Manganese | |
| Mn | ⓘ Alleghanyite | Mn52+(SiO4)2(OH)2 |
| Mn | ⓘ Pyrolusite | Mn4+O2 |
| Mn | ⓘ Rhodochrosite | MnCO3 |
| Mn | ⓘ Tephroite | Mn22+SiO4 |
Other Databases
| Link to USGS MRDS: | 10109106 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Shoofly-Olds Ferry DomainDomain
- Sierra Nevada BatholithVolcanic Arc
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.
