Hastings Mine, Sulfur Springs Mountain, Vallejo, Solano County, California, USAi
| Regional Level Types | |
|---|---|
| Hastings Mine | Mine |
| Sulfur Springs Mountain | Mountain |
| Vallejo | City |
| Solano County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
38° 6' 54'' North , 122° 10' 2'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Benicia | 28,167 (2017) | 7.4km |
| Port Costa | 190 (2011) | 7.8km |
| Vallejo | 121,253 (2017) | 7.9km |
| Crockett | 3,094 (2011) | 8.0km |
| American Canyon | 20,554 (2017) | 10.5km |
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 |
|---|---|---|
| Vallejo Gem & Mineral Society | Vallejo, California | 8km |
| Contra Costa Mineral & Gem Society | Concord, California | 19km |
| Northern California Geological Society | Orinda, California | 26km |
| Antioch Lapidary Club | Antioch, California | 34km |
| San Francisco Gem and Mineral Society, Inc. | San Francisco, California | 44km |
A former Hg occurrence/mine located in the center S½SW¼ sec. 11, T3N, R3W, MDM, 6.0 km (3.7 miles) E of Vallejo and 7.4 km (4.6 miles) N of Benicia, along the eastern slope of the mountain (W canyon wall of Sky Valley). Discovered in 1875. Production years were 1916 to 1918 and 1928 to 1930. Owned by the Hastings estate (1939). MRDS database stated accuracy for this location is 100 meters. Acid mine waters were encountered in 1930 and a court injunction closed the mine.
Mineralization is hosted in siliceous sinter and tufa holo (sic - MRDS [Holocene ?]) (carbonate). The ore body forms irregular masses that strike NW and dip NE at a width of 18.29 meters. Sediments and serpentine occur in breccia beneath a thrust fault. Both rocks are intruded by andesite dikes. Associated rocks include andesite dikes and serpentinite. Local alteration is silica-carbonate from andesite. Local rocks include Lower Cretaceous marine rocks.
Local structures include a thrust fault and breccia zone.
Workings include underground openings with a length of 335.28 meters and an overall depth of 34.14 meters.
Production data are found in: U.S. Bureau of Mines file data.
Analytical data results: 1.72% Hg.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
3 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:
| ⓘ Cinnabar Formula: HgS References: |
| ⓘ Metacinnabar Formula: HgS References: |
| ⓘ Pyrite Formula: FeS2 |
| ⓘ 'Serpentine Subgroup' Formula: D3[Si2O5](OH)4 |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 2 - Sulphides and Sulfosalts | |||
|---|---|---|---|
| ⓘ | Metacinnabar | 2.CB.05a | HgS |
| ⓘ | Cinnabar | 2.CD.15a | HgS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| Unclassified | |||
| ⓘ | 'Serpentine Subgroup' | - | D3[Si2O5](OH)4 |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| O | Oxygen | |
| O | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| Si | Silicon | |
| Si | ⓘ Serpentine Subgroup | D3[Si2O5](OH)4 |
| S | Sulfur | |
| S | ⓘ Cinnabar | HgS |
| S | ⓘ Metacinnabar | HgS |
| S | ⓘ Pyrite | FeS2 |
| Fe | Iron | |
| Fe | ⓘ Pyrite | FeS2 |
| Hg | Mercury | |
| Hg | ⓘ Cinnabar | HgS |
| Hg | ⓘ Metacinnabar | HgS |
Other Databases
| Link to USGS MRDS: | 10040640 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
- Coast MountainsMountain Range
North America PlateTectonic Plate
- California Coast RangesAccretionary Complex
- Franciscan DomainDomain
- Sonoma-Livermore BasinBasin
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