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Long Point dome, Rosenberg, Fort Bend County, Texas, USAi
Regional Level Types
Long Point domeDome
Rosenberg- not defined -
Fort Bend CountyCounty
TexasState
USACountry

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Latitude & Longitude (WGS84):
29° 28' 30'' North , 95° 43' 15'' West
Latitude & Longitude (decimal):
29.47525,-95.72105
GeoHash:
G#: 9v5ztvf1c
GRN:
N20W60
Type:
Dome
KΓΆppen climate type:
Cfa : Humid subtropical climate
Nearest Settlements:
PlacePopulationDistance
Fairchilds1,027 (2017)7.5km
Pleak1,366 (2017)8.5km
Greatwood11,538 (2011)9.8km
Rosenberg35,510 (2017)12.4km
Richmond12,138 (2017)12.5km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Clear Lake Gem and Mineral SocietyHouston, Texas47km
Houston Gem and Mineral SocietyHouston, Texas47km
Texas Faceters GuildHouston, Texas47km
Mindat Locality ID:
42088
Long-form identifier:
mindat:1:2:42088:1
GUID (UUID V4):
b3488104-ff8f-4302-a99f-f7f0e30168ed


A S-salt deposit located 12.4 km (7.7 miles) SE of Rosenberg, on private land (private lease). Discovered in 1924. First production occurred in 1930. 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 Middle Jurassic Louann limestone and salt. The ore body has a depth-to-top of 518 meters. Ore body No. 1 is sedimentary & tabular. Ore body No. 2 is disseminated, lenticular. The primary mode of origin was evaporation and the secondary mode was sedimentation. Primary ore control was lithology. The average thickness of unconsolidated material is 167 meters. Sulfur occurs in evaporites and limestone on the top and flanks of a salt dome. The sulfur was probably formed by hydrocarbon reduction of anhydrite, assisted by bacterial actions. Local rocks include Beaumont Formation, areas predominantly sand.

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Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

9 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

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Alphabetical List Tree Diagram

Detailed Mineral List:

β“˜ Anhydrite
Formula: CaSO4
β“˜ Calcite
Formula: CaCO3
β“˜ Celestine
Formula: SrSO4
β“˜ Galena
Formula: PbS
β“˜ Gypsum
Formula: CaSO4 · 2H2O
β“˜ Halite
Formula: NaCl
β“˜ Pyrite
Formula: FeS2
β“˜ Strontianite
Formula: SrCO3
β“˜ Sulphur
Formula: S8

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
β“˜Sulphur1.CC.05S8
Group 2 - Sulphides and Sulfosalts
β“˜Galena2.CD.10PbS
β“˜Pyrite2.EB.05aFeS2
Group 3 - Halides
β“˜Halite3.AA.20NaCl
Group 5 - Nitrates and Carbonates
β“˜Calcite5.AB.05CaCO3
β“˜Strontianite5.AB.15SrCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
β“˜Anhydrite7.AD.30CaSO4
β“˜Celestine7.AD.35SrSO4
β“˜Gypsum7.CD.40CaSO4 Β· 2H2O

List of minerals for each chemical element

HHydrogen
Hβ“˜ GypsumCaSO4 · 2H2O
CCarbon
Cβ“˜ CalciteCaCO3
Cβ“˜ StrontianiteSrCO3
OOxygen
Oβ“˜ AnhydriteCaSO4
Oβ“˜ CalciteCaCO3
Oβ“˜ CelestineSrSO4
Oβ“˜ GypsumCaSO4 · 2H2O
Oβ“˜ StrontianiteSrCO3
NaSodium
Naβ“˜ HaliteNaCl
SSulfur
Sβ“˜ AnhydriteCaSO4
Sβ“˜ CelestineSrSO4
Sβ“˜ GalenaPbS
Sβ“˜ GypsumCaSO4 · 2H2O
Sβ“˜ PyriteFeS2
Sβ“˜ SulphurS8
ClChlorine
Clβ“˜ HaliteNaCl
CaCalcium
Caβ“˜ AnhydriteCaSO4
Caβ“˜ CalciteCaCO3
Caβ“˜ GypsumCaSO4 · 2H2O
FeIron
Feβ“˜ PyriteFeS2
SrStrontium
Srβ“˜ CelestineSrSO4
Srβ“˜ StrontianiteSrCO3
PbLead
Pbβ“˜ GalenaPbS

Other Databases

Link to USGS MRDS:10251722

Localities in this Region

USA

Other Regions, Features and Areas containing this locality

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

(n.d.) Minerals Availability System (MAS), U.S. Bureau of Mines.file ID # 0481570001
U.S. Bureau of Mines, Microfilm Compilation of Confidential Individual Company Statistics.
Espenshade, G.H. and Broedel, C.H. (1952), Annotated Bibliography and Index Map of Sulphur and Pyrite Deposits in the United States and Alaska, USGS Information Circular 157, 48pp.
Netzeband, F.F., Early, T.R., Ryan J.P. and Miller, W.C. (1964), Sulphur Resources and Production in Texas, Louisiana, Missouri, Oklahoma, Arkansas, Kansas and Mississippi, and Markets for the Sulphur, U.S. Bureau of mines Information Circular IC 8222, 77pp.
Ellison, Jr. (1971), Sulphur in Texas, Bureau of Economic Geology, Handbook No. 2, January, 1971, 48 pp.
McGowen, J.H. et al. (1976), Environmental Geologic Atlas of the Texas Gulf Coastal Zone - Bay City-Freeport Area, University of Texas, Austin, Bureau of Economic Geology, 98 pp., 9 maps.
Linn, Kurt (1987), Assistant to the President, Texas Gulf, Incorporated, telephone conversation with Lee Osmonson (USGS ?).
Rocks & Minerals (1991): 66(3): 196-224.
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
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