Coldwater Nos. 1 and 2 deposits (part of the Helmke Manganese group), Neafus Peak, Trinity County, California, USAi
| Regional Level Types | |
|---|---|
| Coldwater Nos. 1 and 2 deposits (part of the Helmke Manganese group) | Group of Deposits |
| Neafus Peak | Peak |
| Trinity County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
40° 8' 53'' North , 123° 31' 10'' West
Latitude & Longitude (decimal):
Type:
Group of Deposits
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Alderpoint | 186 (2011) | 8.4km |
| Ruth | 195 (2011) | 21.6km |
| Phillipsville | 140 (2011) | 23.6km |
| Garberville | 913 (2011) | 24.0km |
| Benbow | 321 (2011) | 24.2km |
A former Mn mine located in the NE¼ sec. 5, T4S, R6E, HM, 1.5 km (4,900 feet) ENE of Neafus Peak. Discovered 1942. Owned by the William White estate, California (1974). Operated by Rae F. Helmke, California (1974). MRDS database stated accuracy for this location is 1,000 meters.
Mineralization is a Mn occurrence. The ore consists of blocks of high-grade Mn oxide lying in landslide debris. The debris that is associated with the ore is mainly chert. No ore has been found in situ. Local rocks include Franciscan Complex, unit 1 (Coast Ranges).
Analytical data results: Average of over 45% Mn.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ 'Manganese Oxides' Description: Occur in landslide debris as blocks of ore. |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Unclassified | |||
|---|---|---|---|
| ⓘ | 'Manganese Oxides' | - | |
List of minerals for each chemical element
Other Databases
| Link to USGS MRDS: | 10033684 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Coast MountainsMountain Range
North America PlateTectonic Plate
- California Coast RangesAccretionary Complex
- Franciscan DomainDomain
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID #0061050026
