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Fannett Dome (Fannett Dome Mine; Fannett Dome Sulfur Mine; Fannett Oil Field), Fannett, Jefferson County, Texas, USAi
| Regional Level Types | |
|---|---|
| Fannett Dome (Fannett Dome Mine; Fannett Dome Sulfur Mine; Fannett Oil Field) | Dome |
| Fannett | - not defined - |
| Jefferson County | County |
| Texas | State |
| USA | Country |
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Latitude & Longitude (WGS84):
29° 52' 19'' North , 94° 15' 50'' West
Latitude & Longitude (decimal):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Fannett | 2,252(2011) | 6.1km |
| Taylor Landing | 233(2017) | 12.8km |
| Winnie | 3,254(2011) | 12.9km |
| Stowell | 1,756(2011) | 14.7km |
| China | 1,130(2017) | 20.7km |
A salt dome located 6.1 km (3.8 miles) SSW of Fannett, on private land. The dome was discovered in 1925. Operated by Texas Gulf. MRDS database stated accuracy for this location is 100 meters.
Mineralization is a salt dome deposit (Mineral occurrence model information: Model code: 255; USGS model code: 35a.7 (35ag); Deposit model name: Salt-dome sulfur), hosted in the Middle Jurassic Louann Limestone and salt. The ore body has a depth-to-top of 396.24 meters. The depth to caprock is 741 feet, to the sulfur it is 1,300 feet and to the salt it is 2,080 feet. The of the salt was calculated at 1.0 cubic mile to a depth of 10,000 feet. Local alteration includes biogenic alteration of anhydrock to limestone. Local rocks include rocks of the Beaumont Formation, areas predominantly clay.
Local geologic structures include a piercement salt dome.
Workings include underground openings comprised of the wells and surface infrastructure necessary for the Frasch process mining of sulfur.
Production data are found in: Halbouty, Michel T. (1979).
Select Mineral List Type
StandardDetailedGalleryStrunzChemical ElementsCommodity List
This is a list of exploitable or exploited mineral commodities recorded at this locality.Mineral List
11 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 ListTree DiagramDetailed Mineral List:
| ⓘAlabandite Formula:MnS |
| ⓘAnhydrite Formula:CaSO4 |
| ⓘAragonite Formula:CaCO3 |
| ⓘBaryte Formula:BaSO4 |
| ⓘCelestine Formula:SrSO4 |
| ⓘGypsum Formula:CaSO4 · 2H2O |
| ⓘHalite Formula:NaCl |
| ⓘHauerite Formula:MnS2 |
| ⓘNative Sulphur Formula:S8 |
| ⓘ'Petroleum' |
| ⓘRhodochrosite ? Formula:MnCO3 |
| ⓘSphalerite Formula:ZnS |
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Sulphur | 1.CC.05 | S8 |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Sphalerite | 2.CB.05a | ZnS |
| ⓘ | Alabandite | 2.CD.10 | MnS |
| ⓘ | Hauerite | 2.EB.05a | MnS2 |
| Group 3 - Halides | |||
| ⓘ | Halite | 3.AA.20 | NaCl |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Rhodochrosite ? | 5.AB.05 | MnCO3 |
| ⓘ | Aragonite | 5.AB.15 | CaCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Anhydrite | 7.AD.30 | CaSO4 |
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| ⓘ | Celestine | 7.AD.35 | SrSO4 |
| ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
| Unclassified | |||
| ⓘ | 'Petroleum' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘGypsum | CaSO4 · 2H2O |
| C | Carbon | |
| C | ⓘAragonite | CaCO3 |
| C | ⓘRhodochrosite | MnCO3 |
| O | Oxygen | |
| O | ⓘAnhydrite | CaSO4 |
| O | ⓘAragonite | CaCO3 |
| O | ⓘBaryte | BaSO4 |
| O | ⓘCelestine | SrSO4 |
| O | ⓘGypsum | CaSO4 · 2H2O |
| O | ⓘRhodochrosite | MnCO3 |
| Na | Sodium | |
| Na | ⓘHalite | NaCl |
| S | Sulfur | |
| S | ⓘAlabandite | MnS |
| S | ⓘAnhydrite | CaSO4 |
| S | ⓘBaryte | BaSO4 |
| S | ⓘCelestine | SrSO4 |
| S | ⓘGypsum | CaSO4 · 2H2O |
| S | ⓘHauerite | MnS2 |
| S | ⓘSphalerite | ZnS |
| S | ⓘNative Sulphur | S8 |
| Cl | Chlorine | |
| Cl | ⓘHalite | NaCl |
| Ca | Calcium | |
| Ca | ⓘAnhydrite | CaSO4 |
| Ca | ⓘAragonite | CaCO3 |
| Ca | ⓘGypsum | CaSO4 · 2H2O |
| Mn | Manganese | |
| Mn | ⓘAlabandite | MnS |
| Mn | ⓘHauerite | MnS2 |
| Mn | ⓘRhodochrosite | MnCO3 |
| Zn | Zinc | |
| Zn | ⓘSphalerite | ZnS |
| Sr | Strontium | |
| Sr | ⓘCelestine | SrSO4 |
| Ba | Barium | |
| Ba | ⓘBaryte | BaSO4 |
Other Databases
| Link to USGS MRDS: | 10061158 |
|---|
Other Regions, Features and Areas containing this locality
North AmericaContinent
North America PlateTectonic Plate
- Gulf of Mexico BasinBasin
- Northern Gulf of Mexico MarginPassive Margin
- Sabine DomainDomain
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References
(n.d.)Minerals Availability System (MAS), U.S. Bureau of Mines.file ID # 0482450002
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Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2025, except where stated. Most political location boundaries are© OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 byJolyon Ralph.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844.doi:10.2138/am-2024-9486.
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Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2025, except where stated. Most political location boundaries are© OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 byJolyon Ralph.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844.doi:10.2138/am-2024-9486.
Privacy Policy -Terms & Conditions -Contact Us / DMCA issues -Report a bug/vulnerabilityCurrent server date and time: November 30, 2025 03:11:10 Page updated: October 27, 2025 20:45:36