Democrat group, Weaverville, Weaverville District, Klamath Mountains, Trinity County, California, USAi
| Regional Level Types | |
|---|---|
| Democrat group | - not defined - |
| Weaverville | - not defined - |
| Weaverville District | Mining District |
| Klamath Mountains | Mountain Range |
| Trinity County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
40° 42' 28'' North , 122° 56' 57'' West
Latitude & Longitude (decimal):
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Weaverville | 3,600 (2011) | 2.6km |
| Douglas City | 713 (2011) | 6.2km |
| Junction City | 680 (2011) | 9.2km |
| Lewiston | 1,193 (2011) | 11.9km |
| Hayfork | 2,368 (2011) | 26.1km |
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 |
|---|---|---|
| Shasta Gem & Mineral Society | Redding, California | 49km |
A former Au-Pb-As mine located in secs. 12 & 13, T33N, R10W, MDM, 2.7 km (8,800 feet) SSW of Weaverville, along Democrat Gulch (on the ridge between West Weaver Creek & Democrat Gulch), . MRDS database stated accuracy for this location is 1,000 meters.
Mineralization is hosted in schist. The ore body is irregular, strikes N35E and dips 45NW at a thickness of 4.27 meters. The adit cuts sandstone, then a serpentinized dike, and then an andesitic dike. The last 50 feet is in a light green, chloritic schist with layers of graphitic schist. The serpentine dike is 73 feet thick, strikes N77.5W toward the main vein. Averill (1926) describes a decomposed "porphyry." Associated rocks include andesite. Local rocks include schist of various types and ages, unit 7 (Klamath Mountains) and/or Oligocene nonmarine rocks, unit 1 (Northern California).
Workings include surface and underground openings comprised of a 340 foot tunnel with a second tunnel on the opposite side of the ridge. Older workings include shallow holes and a winze.
No specific production record was found. Iron sulfides stated to have been very productive of gold on parts of surface and in placers nearby. Several bunches of rich Au ore from the serpentine dike stated to have totaled perhaps $5,000 to $10,000 (period values).
Analytical data results: Quartz stringers in graphitic schist said to carry approximately 8% arsenopyrite.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Arsenopyrite Formula: FeAsS |
| ⓘ 'Chlorite Group' |
| ⓘ Gold Formula: Au |
| ⓘ Graphite Formula: C |
| ⓘ Quartz Formula: SiO2 |
| ⓘ 'Serpentine Subgroup' Formula: D3[Si2O5](OH)4 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Gold | 1.AA.05 | Au |
| ⓘ | Graphite | 1.CB.05a | C |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Arsenopyrite | 2.EB.20 | FeAsS |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Quartz | 4.DA.05 | SiO2 |
| Unclassified | |||
| ⓘ | 'Chlorite Group' | - | |
| ⓘ | 'Serpentine Subgroup' | - | D3[Si2O5](OH)4 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| C | Carbon | |
| C | ⓘ Graphite | C |
| O | Oxygen | |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| Si | Silicon | |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| S | Sulfur | |
| S | ⓘ Arsenopyrite | FeAsS |
| Fe | Iron | |
| Fe | ⓘ Arsenopyrite | FeAsS |
| As | Arsenic | |
| As | ⓘ Arsenopyrite | FeAsS |
| Au | Gold | |
| Au | ⓘ Gold | Au |
Other Databases
| Link to USGS MRDS: | 10035873 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Coast MountainsMountain Range
North America PlateTectonic Plate
- Klamouth RangeVolcanic Arc
- Shoofly-Olds Ferry DomainDomain
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References
(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID #0061050625
