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Hockley Dome Mine (United Salt Mine), Hockley, Harris Co., Texas, USAi
Regional Level Types
Hockley Dome Mine (United Salt Mine)Mine
Hockley- not defined -
Harris Co.County
TexasState
USACountry

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Key
Latitude & Longitude (WGS84):
29° 57' 51'' North , 95° 50' 22'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
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


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 Strunz Dana 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: this is a very new system on mindat.org and 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
Reference: R&M 66:3 pp 196-224; Econ Geol (1994) 89:381-390
Anhydrite
Formula: CaSO4
Reference: R&M 66:3 pp 196-224
Baryte
Formula: BaSO4
Reference: R&M 66:3 pp 196-224; Econ Geol (1994) 89:381-390
Calcite
Formula: CaCO3
Reference: R&M 66:3 pp 196-224; Econ Geol (1994) 89:381-390
Dolomite
Formula: CaMg(CO3)2
Reference: Min News 11:8 pp6-8
Galena
Formula: PbS
Reference: R&M 66:3 pp 196-224; Econ Geol (1994) 89:381-390
Goethite
Formula: α-Fe3+O(OH)
Reference: R&M 66:3 pp 196-224
Gypsum
Formula: CaSO4 · 2H2O
Reference: R&M 66:3 pp 196-224; Econ Geol (1994) 89:381-390
Halite
Formula: NaCl
Reference: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment Volume 490, Issue 3, 11 September 2002, Pages 476-491
Hauerite
Formula: MnS2
Reference: Min News 11:8 pp6-8; AM. MINERALOGIST, V. 18, 335-340.
Malachite ?
Formula: Cu2(CO3)(OH)2
Reference: Min News 11:8 pp6-8; AM. MINERALOGIST, V. 18, 335-340.
Marcasite
Formula: FeS2
Reference: Min News 11:8 pp6-8; Econ Geol (1994) 89:381-390
Pyrite
Formula: FeS2
Reference: R&M 66:3 pp 196-224; Econ Geol (1994) 89:381-390
Quartz
Formula: SiO2
Reference: Min News 11:8 pp6-8
Sphalerite
Formula: ZnS
Reference: R&M 66:3 pp 196-224; Econ Geol (1994) 89:381-390
Strontianite
Formula: SrCO3
Reference: R&M 66:3 pp 196-224
Sulphur
Formula: S8
Reference: Min News 11:8 pp6-8

List of minerals arranged by Strunz 10th Edition classification

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

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Sulphur1.3.5.1S8
Group 2 - SULFIDES
AmBnXp, with (m+n):p = 2:1
Acanthite2.4.1.1Ag2S
AmXp, with m:p = 1:1
Galena2.8.1.1PbS
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:2
Hauerite2.12.1.9MnS2
Marcasite2.12.2.1FeS2
Pyrite2.12.1.1FeS2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 9 - NORMAL HALIDES
AX
Halite9.1.1.1NaCl
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Strontianite14.1.3.3SrCO3
AB(XO3)2
Dolomite14.2.1.1CaMg(CO3)2
Group 16a - ANHYDROUS CARBONATES CONTAINING HYDROXYL OR HALOGEN
Malachite ?16a.3.1.1Cu2(CO3)(OH)2
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Anhydrite28.3.2.1CaSO4
Baryte28.3.1.1BaSO4
Group 29 - HYDRATED ACID AND NORMAL SULFATES
AXO4·xH2O
Gypsum29.6.3.1CaSO4 · 2H2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2

List of minerals for each chemical element

HHydrogen
H GypsumCaSO4 · 2H2O
H Goethiteα-Fe3+O(OH)
H MalachiteCu2(CO3)(OH)2
CCarbon
C CalciteCaCO3
C StrontianiteSrCO3
C DolomiteCaMg(CO3)2
C MalachiteCu2(CO3)(OH)2
OOxygen
O AnhydriteCaSO4
O BaryteBaSO4
O CalciteCaCO3
O GypsumCaSO4 · 2H2O
O Goethiteα-Fe3+O(OH)
O StrontianiteSrCO3
O DolomiteCaMg(CO3)2
O QuartzSiO2
O MalachiteCu2(CO3)(OH)2
NaSodium
Na HaliteNaCl
MgMagnesium
Mg DolomiteCaMg(CO3)2
SiSilicon
Si QuartzSiO2
SSulfur
S AcanthiteAg2S
S AnhydriteCaSO4
S BaryteBaSO4
S GypsumCaSO4 · 2H2O
S GalenaPbS
S PyriteFeS2
S SphaleriteZnS
S HaueriteMnS2
S MarcasiteFeS2
S SulphurS8
ClChlorine
Cl HaliteNaCl
CaCalcium
Ca AnhydriteCaSO4
Ca CalciteCaCO3
Ca GypsumCaSO4 · 2H2O
Ca DolomiteCaMg(CO3)2
MnManganese
Mn HaueriteMnS2
FeIron
Fe Goethiteα-Fe3+O(OH)
Fe PyriteFeS2
Fe MarcasiteFeS2
CuCopper
Cu MalachiteCu2(CO3)(OH)2
ZnZinc
Zn SphaleriteZnS
SrStrontium
Sr StrontianiteSrCO3
AgSilver
Ag AcanthiteAg2S
BaBarium
Ba BaryteBaSO4
PbLead
Pb GalenaPbS

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
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.
American Mineralogist (1933): 18: 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.
Economic Geology (1994): 89: 381-390.
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.
USGS (2005), Mineral Resources Data System (MRDS): U.S. Geological Survey, Reston, Virginia, loc. file ID #10107055, 10178899 & 10251273.
U.S. Bureau of Mines, Minerals Availability System (MAS) file ID #0482010030 & 0482010031.

USGS MRDS Record:10107055

Other Regions, Features and Areas containg this locality

North America PlateTectonic Plate

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