Pinole prospect (Pinole Dohrman; Pawsey; Dohrman Pawsey), Bayview-Montalvin, Contra Costa County, California, USAi
| Regional Level Types | |
|---|---|
| Pinole prospect (Pinole Dohrman; Pawsey; Dohrman Pawsey) | Prospect |
| Bayview-Montalvin | Census-designated Place (Former) |
| Contra Costa County | County |
| California | State |
| USA | Country |
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Latitude & Longitude (WGS84):
37° 59' 57'' North , 122° 19' 40'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Montalvin | 2,876 (2011) | 0.6km |
| Bayview | 1,754 (2011) | 1.2km |
| Tara Hills | 5,126 (2011) | 1.2km |
| Pinole | 19,269 (2017) | 2.6km |
| El Sobrante | 12,669 (2011) | 3.8km |
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 | 13km |
| Northern California Geological Society | Orinda, California | 19km |
| Contra Costa Mineral & Gem Society | Concord, California | 26km |
| San Francisco Gem and Mineral Society, Inc. | San Francisco, California | 26km |
| East Bay Mineral and Lapidary Club | Hayward, California | 42km |
A diatomaceous earth prospect located in the W½ sec. 20 & in secs. 21 & 22, T2N, R4W, MDM, 0.3 km (0.2 mile; 900 feet) SW of Bayview-Montalvin. MRDS database stated accuracy for this location is 500 meters. Idle. No commercial production of diatomite has been reported. Some of the Pawsey deposit has been quarried as road fill. Locations corrected on later publication.
Deposit crops out over a considerable area in and W of Pinole. Not sufficiently pure to be commercially exploited for diatomite. Local rocks include Plio-Pleistocene and Pliocene loosely consolidated deposits and/or Miocene marine rocks.
Workings include surface openings.
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
1 valid mineral.
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 DiagramGallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | Opal | 4.DA.10 | SiO2 · nH2O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Opal | SiO2 · nH2O |
| O | Oxygen | |
| O | ⓘ Opal | SiO2 · nH2O |
| Si | Silicon | |
| Si | ⓘ Opal | SiO2 · nH2O |
Other Databases
| Link to USGS MRDS: | 10029592 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- California Coast RangesAccretionary Complex
- Franciscan DomainDomain
- Sonoma-Livermore BasinBasin
USA
- California
- Diablo RangeMountain Range
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