Juniper Mine, Wilbur Springs, Sulphur Creek Mining District (Sulfur Creek Mining District; Wilbur Springs Mining District), Coast Ranges, Colusa County, California, USAi
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Latitude & Longitude (WGS84):
39° 5' 26'' North , 122° 27' 16'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Clearlake Oaks | 2,359 (2011) | 20.1km |
| Clearlake | 15,182 (2017) | 20.9km |
| Lodoga | 197 (2011) | 23.7km |
| Lower Lake | 1,294 (2011) | 24.1km |
| Williams | 5,196 (2017) | 27.3km |
Other/historical names associated with this locality:
Rathburn group; Turkey Hill; Wild Turkey; Toothache; Lea-Grant; May Day; Last Resort; Old Kentucky
A former Hg occurrence/mine located in sec. 6, T14N, R5W, MDM, 6.5 km (4.0 miles) NNW of Wilbur Springs and 3.0 km (10,000 feet) ESE of Cold Spring Mountain (coordinates of record), S of Deadshot Canyon, in the headwaters area of the East Fork Sulphur Creek. Operated 1893-1894, and again about 1960 (no specifics). Owned at one time by the Cal-Merc Milling Co. (1969) and/or Walter Petray. MRDS database accuracy for this location is not stated.
Mineralization is a Hg deposit. Ore control was silicified fractures in serpentine. Alteration is local and involves the silicification of serpentine. The deposit is hosted along a fault zone in altered serpentinite, which is cut by quartz and chalcedony veins. Cinnabar occurs as fine grained masses in fractures and as disseminations in low angle faults and shear zones. Local rocks include ultramafic rocks, chiefly Mesozoic, unit 3 (Coast Ranges and Western Klamath Mountains).
A small mercury mine, which produced 100 flasks of mercury, mainly in the period from 1892-1893. More recent mining concentrated in the area further north (Petray Mine).
Workings include unspecified surface and underground openings, now caved.
Production (1960): more than 48 pounds/ton (21,680 grams/metric ton.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsDetailed Mineral List:
| ⓘ Cinnabar Formula: HgS |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Quartz var. Chalcedony Formula: SiO2 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Cinnabar | 2.CD.15a | HgS |
| 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 |
| Hg | Mercury | |
| Hg | ⓘ Cinnabar | HgS |
Other Databases
| Link to USGS MRDS: | 10040765 |
|---|
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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