Mann Mine (Mann deposit; Dan Mahon claims; Greenstone Mine), Montezuma, Chinese Camp Mining District, Tuolumne County, California, USAi
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Latitude & Longitude (WGS84):
37° 55' 4'' North , 120° 26' 45'' West
Latitude & Longitude (decimal):
Type:
KΓΆppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Jamestown | 3,433 (2011) | 4.4km |
| Chinese Camp | 126 (2011) | 5.3km |
| Tuttletown | 668 (2011) | 8.3km |
| Sonora | 4,818 (2017) | 9.2km |
| East Sonora | 2,266 (2011) | 10.0km |
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:
97947
Long-form identifier:
mindat:1:2:97947:5
GUID (UUID V4):
ec4915da-7671-4755-885a-f7d5c27cb903
A Au-Cu occurrence located in secs. 27 & 28, T1N, R14E, MDM, 1.6 km (5,300 feet) NNE of Montezuma (3 miles S of Jamestown), on private land. Property is comprised of 3 claims. Operated in 1912 & 1917. MRDS database stated accuracy for this location is 500 meters. Claims adjoin the Mackey Ranch Cu deposits on the S. The Dan Mahon claims are possibly part of this property.
Mineralization is hosted in serpentinite. The ore body is 6.1 meters thick. Local rocks include Jurassic marine rocks, unit 1 (Western Sierra Nevada and Western Klamath Mountains) and/or ultramafic rocks, chiefly Mesozoic, unit 2 (Western Sierra Nevada and Klamath Mountains).
Workings include underground openings with an overall depth of 27.43 meters and comprised of 1 shaft.
Production data are found in: Logan, C. A. (1949): 53 - 54 (see reference).
production information: 1912: 500 tons of low-grade gold ore; 1917: over 200 tons of ore carrying Cu carbonates and sulfides (3% Cu).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral List
4 valid minerals.
Rock Types Recorded
Note: data is currently VERY limited. Please bear with us while we work towards adding this information!
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| β Azurite Formula: Cu3(CO3)2(OH)2 |
| β Chalcopyrite Formula: CuFeS2 References: |
| β Malachite Formula: Cu2(CO3)(OH)2 |
| β Pyrite Formula: FeS2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| β | Chalcopyrite | 2.CB.10a | CuFeS2 |
| β | Pyrite | 2.EB.05a | FeS2 |
| Group 5 - Nitrates and Carbonates | |||
| β | Azurite | 5.BA.05 | Cu3(CO3)2(OH)2 |
| β | Malachite | 5.BA.10 | Cu2(CO3)(OH)2 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | β Azurite | Cu3(CO3)2(OH)2 |
| H | β Malachite | Cu2(CO3)(OH)2 |
| C | Carbon | |
| C | β Azurite | Cu3(CO3)2(OH)2 |
| C | β Malachite | Cu2(CO3)(OH)2 |
| O | Oxygen | |
| O | β Azurite | Cu3(CO3)2(OH)2 |
| O | β Malachite | Cu2(CO3)(OH)2 |
| S | Sulfur | |
| S | β Chalcopyrite | CuFeS2 |
| S | β Pyrite | FeS2 |
| Fe | Iron | |
| Fe | β Chalcopyrite | CuFeS2 |
| Fe | β Pyrite | FeS2 |
| Cu | Copper | |
| Cu | β Azurite | Cu3(CO3)2(OH)2 |
| Cu | β Chalcopyrite | CuFeS2 |
| Cu | β Malachite | Cu2(CO3)(OH)2 |
Other Databases
| Link to USGS MRDS: | 10077903 |
|---|
Other Regions, Features and Areas containing this locality
North America PlateTectonic Plate
- Calaveras-Baker DomainDomain
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID #0061090200
Aubury, Lewis E. (1905) The Copper Resources of California. Bulletin 23. California State Mining Bureau p.201
