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Hockley Dome Mine (United Salt Mine), Hockley, Harris County, Texas, USAi
Regional Level Types
Hockley Dome Mine (United Salt Mine)Mine
HockleyVillage
Harris CountyCounty
TexasState
USACountry

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04343230017272061145907.jpg
Halite

Hockley Dome Mine, Hockley, Harris County, Texas, USA
04343230017272061145907.jpg
Halite

Hockley Dome Mine, Hockley, Harris County, Texas, USA
04343230017272061145907.jpg
Halite

Hockley Dome Mine, Hockley, Harris County, Texas, USA
Latitude & Longitude (WGS84):
29° 57' 51'' North , 95° 50' 22'' West
Latitude & Longitude (decimal):
29.96443,-95.83965
GeoHash:
G#: 9v7f7ngeq
GRN:
N20W60
Type:
Mine
Köppen climate type:
Cfa : Humid subtropical climate
Nearest Settlements:
PlacePopulationDistance
Waller2,522 (2017)13.2km
Cypress46,025 (2011)13.7km
Katy16,158 (2017)19.9km
Prairie View6,369 (2017)20.2km
Oak Cliff Place1,800 (2011)20.9km
Mindat Locality ID:
30644
Long-form identifier:
mindat:1:2:30644:8
GUID (UUID V4):
0


A salt deposit/mine located 7.0 km (4.3 miles) S of Hockley. South of US 290 at Hockley, on private land (private lease). Discovered in 1906 by Patillo Higgins. First production occurred in 1932. Owned & operated by the United Salt Corporation (100%), Texas (1979). Operated by United Salt Corporation (salt) and the Hockley Gypsum Company (gypsum). Owned by the John Warren estate. MRDS database stated accuracy for this location is 100 meters. Also includes abandoned gypsum mine. Sulfur was found in an oil test in 1907.

Mineralization is a salt & gypsum deposit (Mineral occurrence model: information: Model code: 255; USGS model code: 35a.7 (35ag); Deposit model name: Salt-dome sulfur), hosted in Middle Jurassic limestone and the Louann salt. The ore body has a depth-to-top of 23.16 meters. The depth to caprock is 76 feet and to the salt it is 1,010 feet. Salt volume was calculated at 5.9 cubic miles to 10,560 feet of depth. First production of salt was 1932 and of gypsum it was 1944. Local alteration includes the biogenic alteration of anhydrock to limestone. Local rocks include rocks of the Willis Formation.

Local geologic structures include a piercement salt dome.

Workings include underground openings with an overall depth of 464.82 meters. Salt was mined by a room and pillar method. Gypsum was mined at the 200 foot level through a 234 foot shaft. Tidewater Gypsum Company drilled 9 exploration wells and sunk the shaft in 1928. It was later deepened in 1944 by the Hockley Gypsum Company which drilled 15 more wells for gypsum. The mill had a capacity of 100,000 tons of salt per year.

Analytical data results: Gypsum ore mined generally exceeded 95% gypsum.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


17 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 Diagram

Detailed Mineral List:

ⓘ Acanthite
Formula: Ag2S
ⓘ Anhydrite
Formula: CaSO4
ⓘ Baryte
Formula: BaSO4
ⓘ Calcite
Formula: CaCO3
ⓘ Dolomite
Formula: CaMg(CO3)2
ⓘ Galena
Formula: PbS
ⓘ Goethite
Formula: Fe3+O(OH)
ⓘ Gypsum
Formula: CaSO4 · 2H2O
ⓘ Halite
Formula: NaCl
ⓘ Hauerite
Formula: MnS2
ⓘ Malachite ?
Formula: Cu2(CO3)(OH)2
ⓘ Marcasite
Formula: FeS2
ⓘ Pyrite
Formula: FeS2
ⓘ Quartz
Formula: SiO2
ⓘ Sphalerite
Formula: ZnS
ⓘ Strontianite
Formula: SrCO3
ⓘ Sulphur
Formula: S8

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘSulphur1.CC.05S8
Group 2 - Sulphides and Sulfosalts
ⓘAcanthite2.BA.35Ag2S
ⓘSphalerite2.CB.05aZnS
ⓘGalena2.CD.10PbS
ⓘHauerite2.EB.05aMnS2
ⓘPyrite2.EB.05aFeS2
ⓘMarcasite2.EB.10aFeS2
Group 3 - Halides
ⓘHalite3.AA.20NaCl
Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.Fe3+O(OH)
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘDolomite5.AB.10CaMg(CO3)2
ⓘStrontianite5.AB.15SrCO3
ⓘMalachite ?5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘAnhydrite7.AD.30CaSO4
ⓘBaryte7.AD.35BaSO4
ⓘGypsum7.CD.40CaSO4 · 2H2O

List of minerals for each chemical element

HHydrogen
Hⓘ GoethiteFe3+O(OH)
Hⓘ GypsumCaSO4 · 2H2O
Hⓘ MalachiteCu2(CO3)(OH)2
CCarbon
Cⓘ CalciteCaCO3
Cⓘ DolomiteCaMg(CO3)2
Cⓘ MalachiteCu2(CO3)(OH)2
Cⓘ StrontianiteSrCO3
OOxygen
Oⓘ AnhydriteCaSO4
Oⓘ BaryteBaSO4
Oⓘ CalciteCaCO3
Oⓘ DolomiteCaMg(CO3)2
Oⓘ GoethiteFe3+O(OH)
Oⓘ GypsumCaSO4 · 2H2O
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ QuartzSiO2
Oⓘ StrontianiteSrCO3
NaSodium
Naⓘ HaliteNaCl
MgMagnesium
Mgⓘ DolomiteCaMg(CO3)2
SiSilicon
Siⓘ QuartzSiO2
SSulfur
Sⓘ AcanthiteAg2S
Sⓘ AnhydriteCaSO4
Sⓘ BaryteBaSO4
Sⓘ GalenaPbS
Sⓘ GypsumCaSO4 · 2H2O
Sⓘ HaueriteMnS2
Sⓘ MarcasiteFeS2
Sⓘ PyriteFeS2
Sⓘ SphaleriteZnS
Sⓘ SulphurS8
ClChlorine
Clⓘ HaliteNaCl
CaCalcium
Caⓘ AnhydriteCaSO4
Caⓘ CalciteCaCO3
Caⓘ DolomiteCaMg(CO3)2
Caⓘ GypsumCaSO4 · 2H2O
MnManganese
Mnⓘ HaueriteMnS2
FeIron
Feⓘ GoethiteFe3+O(OH)
Feⓘ MarcasiteFeS2
Feⓘ PyriteFeS2
CuCopper
Cuⓘ MalachiteCu2(CO3)(OH)2
ZnZinc
Znⓘ SphaleriteZnS
SrStrontium
Srⓘ StrontianiteSrCO3
AgSilver
Agⓘ AcanthiteAg2S
BaBarium
Baⓘ BaryteBaSO4
PbLead
Pbⓘ GalenaPbS

Other Databases

Link to USGS MRDS:10107055

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment: 490(3)(11 September 2002): 476-491.
Mineral News: 11(8): 6-8.
Mine Safety and Health Administration (MSHA), MSHA file No. 4102478.
U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0482010030 & 0482010031.
Chapman, L.C. (1923), The Hockley Salt Dome, Association of American Petroleum Geologists Bulletin: 7: 297-299.
Deussen, A., and Lane, L.L. (1926), Hockley Salt Dome, Association of American Petroleum Geologists Bulletin: 9: 1031-1066.
Teas, L.P. (1931), Hockley Salt Shaft, Association of American Petroleum Geologists Bulletin: 15: 465-469.
Barnes, Virgil E. (1933) Metallic minerals in anhydrite cap rock, Winnfield salt dome, Louisiana. American Mineralogist, 18 (8) 335-340
Stenzel, H.B. (1946), Gypsum Mining near Hockley, Harris County, Texas, Texas Bureau of Economic Geology MRC-35, 21 pp.
Hawkins, M. E. and C. J. Jirik (1966), Salt domes in Texas, Louisiana, Mississippi, Alabama, and offshore tidelands: a survey, U.S. Bureau of Mines Information Circular 8313.
Kyle, J.R., and Agee, W.N., Jr. (1988), Evaluation of Metal Ratios and S34S Composition of Sulfide Mineralization during Anhydrite Caprock Formation, Hockley Dome, Texas, USA, Chemical Geology: 74: 37-55.
Rocks & Minerals (1991): 66:3: 196-224.
Saunders, James A., Swann, Charles T. (1994) Mineralogy and geochemistry of a cap-rock Zn-Pb-Sr-Ba occurrence at the Hazlehurst salt dome, Mississippi. Economic Geology, 89 (2) 381-390 doi:10.2113/gsecongeo.89.2.381
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
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