Standard Oil Company Mine (General Petroleum Company Mine; Filtrol Mine; Otay deposit; Otay Bentonite deposit), Otay, San Diego County, California, USAi
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Latitude & Longitude (WGS84):
32° 36' 0'' North , 117° 1' 60'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Bonita | 12,538 (2011) | 6.4km |
| Chula Vista | 265,757 (2017) | 6.5km |
| Imperial Beach | 27,408 (2017) | 7.7km |
| National City | 61,060 (2017) | 10.6km |
| Tijuana | 1,300,983 (2018) | 11.2km |
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 |
|---|---|---|
| San Diego Gem and Mineral Society | San Diego, California | 18km |
| San Diego Lapidary Society | San Diego, California | 18km |
| El Cajon Valley Gem & Mineral Society | El Cajon, California | 23km |
Mindat Locality ID:
91495
Long-form identifier:
mindat:1:2:91495:5
GUID (UUID V4):
914c3720-0f74-4409-9074-655383f42f11
A former bentonite mine located in the N½ sec. 30, NW¼ sec. 29, T18S, R1W, SBM (Pemberton [1983] states it is in the SW¼ sec. 17 and the SE¼ sec. 18), 2.9 km (9,500 feet) ENE of Otay.
Mineralization is hosted in Tonalite Of La Posta Formation (sandstone, arkose, volcanic ash)
Production data are found in: Cleveland (1960).
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsMineral 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 DiagramDetailed Mineral List:
| ⓘ Montmorillonite Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 9 - Silicates | |||
|---|---|---|---|
| ⓘ | Montmorillonite | 9.EC.40 | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| O | Oxygen | |
| O | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Na | Sodium | |
| Na | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Mg | Magnesium | |
| Mg | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Al | Aluminium | |
| Al | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Si | Silicon | |
| Si | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Ca | Calcium | |
| Ca | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
Other Regions, Features and Areas containing this locality
North America Plate
- Franciscan DomainDomain
- Southern California Borderland BasinsBasin
- Vizcaino basinBasin
Pacific PlateTectonic Plate
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References
