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Brewster County Consolidated Mine (Study Butte Mine; Rainbow Mine; Big Bend; Texas-Almaden), Study Butte, Terlingua District, Brewster Co., Texas, USAi
Regional Level Types
Brewster County Consolidated Mine (Study Butte Mine; Rainbow Mine; Big Bend; Texas-Almaden)Mine
Study ButteTable/Butte
Terlingua DistrictMining District
Brewster Co.County
TexasState
USACountry

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Key
Lock Map
Latitude & Longitude (WGS84):
29° 19' 26'' North , 103° 31' 40'' West
Latitude & Longitude (decimal):
Locality type:
Köppen climate type:
Nearest Settlements:
PlacePopulationDistance
Study Butte233 (2011)0.7km
Manuel Benavides916 (2014)43.9km


Ref.: Rocks & Min.:12:326,328; The Handbook of Texas online.


A mercury mine located at Study Butte (pronounced STOODY), 5 miles East of Terlingua.

Worked before 1940 until the late 1940's. Reopened 1970 - 1972 (Diamond Shamrock Corp.)

Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


6 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:

Alunite
Formula: KAl3(SO4)2(OH)6
Reference: R&M 66:3 p202
'Bitumen'
Reference: R&M 66:3 p202
Calcite
Formula: CaCO3
Reference: R&M 66:3 p202
Cinnabar
Formula: HgS
Reference: Rocks & Min.:12:326,328.
Jarosite
Formula: KFe3+ 3(SO4)2(OH)6
Reference: R&M 66:3 p202
Marcasite
Formula: FeS2
Reference: Rocks & Min.:12:326,328.
Pyrite
Formula: FeS2
Reference: Rocks & Min.:12:326,328.

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
Cinnabar2.CD.15aHgS
Marcasite2.EB.10aFeS2
Pyrite2.EB.05aFeS2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Alunite7.BC.10KAl3(SO4)2(OH)6
Jarosite7.BC.10KFe3+ 3(SO4)2(OH)6
Unclassified Minerals, Rocks, etc.
'Bitumen'-

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Cinnabar2.8.14.1HgS
AmBnXp, with (m+n):p = 1:2
Marcasite2.12.2.1FeS2
Pyrite2.12.1.1FeS2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 30 - ANHYDROUS SULFATES CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Alunite30.2.4.1KAl3(SO4)2(OH)6
Jarosite30.2.5.1KFe3+ 3(SO4)2(OH)6
Unclassified Minerals, Mixtures, etc.
'Bitumen'-

List of minerals for each chemical element

HHydrogen
H AluniteKAl3(SO4)2(OH)6
H JarositeKFe3+ 3(SO4)2(OH)6
CCarbon
C CalciteCaCO3
OOxygen
O AluniteKAl3(SO4)2(OH)6
O CalciteCaCO3
O JarositeKFe3+ 3(SO4)2(OH)6
AlAluminium
Al AluniteKAl3(SO4)2(OH)6
SSulfur
S MarcasiteFeS2
S PyriteFeS2
S CinnabarHgS
S AluniteKAl3(SO4)2(OH)6
S JarositeKFe3+ 3(SO4)2(OH)6
KPotassium
K AluniteKAl3(SO4)2(OH)6
K JarositeKFe3+ 3(SO4)2(OH)6
CaCalcium
Ca CalciteCaCO3
FeIron
Fe MarcasiteFeS2
Fe PyriteFeS2
Fe JarositeKFe3+ 3(SO4)2(OH)6
HgMercury
Hg CinnabarHgS

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on Macrostrat.org

Late Cretaceous - Early Cretaceous
66 - 145 Ma



ID: 2829259
Pen Formation

Age: Cretaceous (66 - 145 Ma)

Stratigraphic Name: Pen Formation

Description: Equivalent to upper part of Austin Chalk. mostly clay, gray, yellow, calcareous, and sandstone beds in upper part. lower 50 ft contains inch-thick chalk beds, concretions throughout, marine fossils throughout, Exogyra ponderosa common; 219-700 ft thick in Big Bend N.P., 1,000 ft thick in Terlingua area, mapped in south Brewster County.

Comments: Original map source: Stoeser, Douglas B., Shock, Nancy, Green, Gregory N., Dumonceaux, Gayle M., and Heran, William D., 2005, Geologic Map Database of Texas, USGS, DS 170, scale 1:500,000.

Lithology: Major:{claystone}, Incidental:{sandstone}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Early Cretaceous
100.5 - 145 Ma



ID: 3186170
Mesozoic sedimentary rocks

Age: Early Cretaceous (100.5 - 145 Ma)

Lithology: Carbonate,shale

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by Macrostrat.org, used under Creative Commons Attribution 4.0 License


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