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Terlingua Mining District, Texas, USAi
| Regional Level Types | |
|---|---|
| Terlingua Mining District | Mining District |
| Texas | State |
| USA | Country |
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Latitude & Longitude (WGS84):
29° North , 103° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~40km
Type:
Köppen climate type:
Other/historical names associated with this locality:
Terlingua District
A mining district mostly within southwestern Brewster County, Texas, United States. It is located near the Rio Grande and the Texas villages of Lajitas and Study Butte, Texas, as well as the Mexican village of Santa Elena. The discovery of cinnabar, from which the metal mercury is extracted, in the mid-1880s brought miners to the area, creating a city of 2,000 people.
The mineralization formed at ~45 bar and ~200°C. The aqueous ore-forming fluid had a pH of ~5 to 7 and was H₂S-saturated. Cinnabar was deposited as a result of H₂S oxidation through mixing and cooling with local meteoric water. The mercury oxychlorides are restricted to limestone-clay contact deposits.
The most productive mercury mines are in a zone of southward-dipping fractures and faults near the Terlingua monocline and Long Draw graben. The cinnabar deposits are not on the monocline itself but are updip from it. The host structures of the ore deposits, the cave-fill zones and breccia pipes, were formed after volcanism and before igneous intrusion.
The Terlingua mining district is in a province of alkalic igneous rocks where the sedimentary strata are intruded by many sills, laccoliths, dikes, and plugs that range in composition from rhyolite through analcime syenite to olivine basalt. The intrusive rocks can be broadly classified into those that contain analcime and those that are analcime-free. The analcime-free rocks are rhyolite, quartz soda syenite, soda trachyte, soda latite, and olivine basalt. Most of the igneous units were deposited about 37 to 31 Ma.
Hematite is notably common in an altered, cinnabar-bearing assemblage called “jaboncillo,” a banded assemblage of fine-grained cinnabar and hexagonal crystals of hematite and kaolinite and quartz replacing original smectite clay minerals in the basal beds of the Del Rio shale formation.
The mineralization formed at ~45 bar and ~200°C. The aqueous ore-forming fluid had a pH of ~5 to 7 and was H₂S-saturated. Cinnabar was deposited as a result of H₂S oxidation through mixing and cooling with local meteoric water. The mercury oxychlorides are restricted to limestone-clay contact deposits.
The most productive mercury mines are in a zone of southward-dipping fractures and faults near the Terlingua monocline and Long Draw graben. The cinnabar deposits are not on the monocline itself but are updip from it. The host structures of the ore deposits, the cave-fill zones and breccia pipes, were formed after volcanism and before igneous intrusion.
The Terlingua mining district is in a province of alkalic igneous rocks where the sedimentary strata are intruded by many sills, laccoliths, dikes, and plugs that range in composition from rhyolite through analcime syenite to olivine basalt. The intrusive rocks can be broadly classified into those that contain analcime and those that are analcime-free. The analcime-free rocks are rhyolite, quartz soda syenite, soda trachyte, soda latite, and olivine basalt. Most of the igneous units were deposited about 37 to 31 Ma.
Hematite is notably common in an altered, cinnabar-bearing assemblage called “jaboncillo,” a banded assemblage of fine-grained cinnabar and hexagonal crystals of hematite and kaolinite and quartz replacing original smectite clay minerals in the basal beds of the Del Rio shale formation.
Select Mineral List Type
Standard Detailed Gallery Strunz Chemical ElementsCommodity 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-localities50 valid minerals. 9 (TL) - type locality of valid minerals.
Rock Types Recorded
Rock list contains entries from the region specified including sub-localities
Select Rock List Type
Alphabetical List Tree DiagramDetailed Mineral List:
| ⓘ Albite Formula: Na(AlSi3O8) |
| ⓘ Alunite Formula: KAl3(SO4)2(OH)6 |
| ⓘ Analcime Formula: Na(AlSi2O6) · H2O Localities: Habit: trapazohedra to 6mm in diameter, rarely with cubic faces Colour: gray to white |
| ⓘ Anhydrite Formula: CaSO4 |
| ⓘ 'Apophyllite Group' Formula: AB4[Si8O20]X · 8H2O |
| ⓘ Aragonite Formula: CaCO3 |
| ⓘ Baryte Formula: BaSO4 |
| ⓘ Beidellite Formula: (Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O |
| ⓘ Calcite Formula: CaCO3 Localities: Reported from at least 24 localities in this region. |
| ⓘ Calomel Formula: [Hg2]2+Cl2 |
| ⓘ Carnotite Formula: K2(UO2)2(VO4)2 · 3H2O |
| ⓘ Cinnabar Formula: HgS Localities: Reported from at least 28 localities in this region. |
| ⓘ Clintonite Formula: CaAlMg2(SiAl3O10)(OH)2 |
| ⓘ Comancheite (TL) Formula: Hg2+55N3-24(NH2,OH)4(Cl,Br)34 Localities: Type Locality: Mariposa Mine, Brewster County, Texas, USA |
| ⓘ Corderoite Formula: Hg2+3S2Cl2 References: |
| ⓘ Edgarbaileyite Formula: [Hg2]2+3[Si2O7] |
| ⓘ Eglestonite (TL) Formula: [Hg2]2+3OCl3(OH) Localities: Type Locality: Terlingua Mining District, Texas, USA |
| ⓘ Epidote Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ Epsomite Formula: MgSO4 · 7H2O References: |
| ⓘ Fluorite Formula: CaF2 Localities: Reported from at least 12 localities in this region. |
| ⓘ Gianellaite (TL) Formula: [(Hg2N)2](SO4)(H2O)x Type Locality: |
| ⓘ Goethite Formula: Fe3+O(OH) |
| ⓘ Grossular Formula: Ca3Al2(SiO4)3 |
| ⓘ Gypsum Formula: CaSO4 · 2H2O |
| ⓘ Hematite Formula: Fe2O3 |
| ⓘ Ilmenite Formula: Fe2+TiO3 |
| ⓘ Jarosite Formula: KFe3+3(SO4)2(OH)6 Localities: Mariposa Mine, Brewster County, Texas, USA Terlingua Mining District, Texas, USA Brewster County Consolidated Mine (Study Butte Mine; Rainbow Mine; Big Bend; Texas-Almaden), Study Butte, Brewster County, Texas, USA Chisos Mine (McKinney-Parker Mine), Brewster County, Texas, USA Lowe prospect, Brewster County, Texas, USA |
| ⓘ Kaolinite Formula: Al2(Si2O5)(OH)4 |
| ⓘ Kleinite (TL) Formula: (Hg2N)(Cl,SO4) · nH2O Type Locality: Terlingua Mining District, Texas, USA |
| ⓘ 'Limonite' Localities: Reported from at least 8 localities in this region. |
| ⓘ Marcasite Formula: FeS2 |
| ⓘ Melanterite Formula: Fe2+(H2O)6(SO4) · H2O References: |
| ⓘ Metacinnabar Formula: HgS |
| ⓘ Montmorillonite Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| ⓘ Montroydite (TL) Formula: HgO Type Locality: Terlingua Mining District, Texas, USA |
| ⓘ Mosesite (TL) Formula: (Hg2N)(Cl,SO4,MoO4) · H2O Type Locality: Terlingua Mining District, Texas, USA |
| ⓘ Native Mercury Formula: Hg |
| ⓘ Native Silver Formula: Ag |
| ⓘ Native Silver var. Amalgam Formula: (Ag,Hg) |
| ⓘ Natrolite Formula: Na2Al2Si3O10 · 2H2O |
| ⓘ Orthoclase Formula: K(AlSi3O8) |
| ⓘ 'Petroleum' |
| ⓘ 'Petroleum var. Bitumen' |
| ⓘ Pinchite (TL) Formula: Hg2+5Cl2O4 Type Locality: Terlingua Mining District, Texas, USA |
| ⓘ Prehnite Formula: Ca2Al2Si3O10(OH)2 |
| ⓘ 'Psilomelane' |
| ⓘ Pyrite Formula: FeS2 Localities: Reported from at least 9 localities in this region. |
| ⓘ Pyrolusite Formula: Mn4+O2 |
| ⓘ Quartz Formula: SiO2 Localities: Reported from at least 6 localities in this region. |
| ⓘ Quartz var. Chalcedony Formula: SiO2 |
| ⓘ Schuetteite Formula: Hg2+3O2(SO4) References: |
| ⓘ Scorodite Formula: Fe3+AsO4 · 2H2O |
| ⓘ 'Smectite Group' Formula: A0.3D2-3[T4O10]Z2 · nH2O |
| ⓘ Terlinguacreekite (TL) Formula: Hg2+3Cl2O2 Localities: Type Locality: Perry Pit, Mariposa Mine, Brewster County, Texas, USA |
| ⓘ Terlinguaite (TL) Formula: [Hg3]4+Hg2+Cl2O2 Localities: Type Locality: Terlingua Mining District, Texas, USA |
| ⓘ Titanite Formula: CaTiO(SiO4) |
| ⓘ Uranophane Formula: Ca(UO2)2(SiO3OH)2 · 5H2O |
| ⓘ 'Wad' |
| ⓘ Zoisite Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 1 - Elements | |||
|---|---|---|---|
| ⓘ | Native Silver var. Amalgam | 1.AA.05 | (Ag,Hg) |
| ⓘ | 1.AA.05 | Ag | |
| ⓘ | Native Mercury | 1.AD.05 | Hg |
| Group 2 - Sulphides and Sulfosalts | |||
| ⓘ | Metacinnabar | 2.CB.05a | HgS |
| ⓘ | Cinnabar | 2.CD.15a | HgS |
| ⓘ | Pyrite | 2.EB.05a | FeS2 |
| ⓘ | Marcasite | 2.EB.10a | FeS2 |
| ⓘ | Corderoite | 2.FC.15a | Hg2+3S2Cl2 |
| Group 3 - Halides | |||
| ⓘ | Calomel | 3.AA.30 | [Hg2]2+Cl2 |
| ⓘ | Fluorite | 3.AB.25 | CaF2 |
| ⓘ | Eglestonite (TL) | 3.DD.05 | [Hg2]2+3OCl3(OH) |
| ⓘ | Terlinguaite (TL) | 3.DD.20 | [Hg3]4+Hg2+Cl2O2 |
| ⓘ | Pinchite (TL) | 3.DD.25 | Hg2+5Cl2O4 |
| ⓘ | Gianellaite (TL) | 3.DD.30 | [(Hg2N)2](SO4)(H2O)x |
| ⓘ | Mosesite (TL) | 3.DD.30 | (Hg2N)(Cl,SO4,MoO4) · H2O |
| ⓘ | Kleinite (TL) | 3.DD.35 | (Hg2N)(Cl,SO4) · nH2O |
| ⓘ | Terlinguacreekite (TL) | 3.DD.55 | Hg2+3Cl2O2 |
| ⓘ | Comancheite (TL) | 3.DD.65 | Hg2+55N3-24(NH2,OH)4(Cl,Br)34 |
| Group 4 - Oxides and Hydroxides | |||
| ⓘ | Montroydite (TL) | 4.AC.15 | HgO |
| ⓘ | Hematite | 4.CB.05 | Fe2O3 |
| ⓘ | Ilmenite | 4.CB.05 | Fe2+TiO3 |
| ⓘ | Quartz var. Chalcedony | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
| ⓘ | Pyrolusite | 4.DB.05 | Mn4+O2 |
| ⓘ | Goethite | 4.FD.10 | Fe3+O(OH) |
| ⓘ | Carnotite | 4.HB.05 | K2(UO2)2(VO4)2 · 3H2O |
| Group 5 - Nitrates and Carbonates | |||
| ⓘ | Calcite | 5.AB.05 | CaCO3 |
| ⓘ | Aragonite | 5.AB.15 | CaCO3 |
| Group 7 - Sulphates, Chromates, Molybdates and Tungstates | |||
| ⓘ | Anhydrite | 7.AD.30 | CaSO4 |
| ⓘ | Baryte | 7.AD.35 | BaSO4 |
| ⓘ | Schuetteite | 7.BB.40 | Hg2+3O2(SO4) |
| ⓘ | Alunite | 7.BC.10 | KAl3(SO4)2(OH)6 |
| ⓘ | Jarosite | 7.BC.10 | KFe3+3(SO4)2(OH)6 |
| ⓘ | Melanterite | 7.CB.35 | Fe2+(H2O)6(SO4) · H2O |
| ⓘ | Epsomite | 7.CB.40 | MgSO4 · 7H2O |
| ⓘ | Gypsum | 7.CD.40 | CaSO4 · 2H2O |
| Group 8 - Phosphates, Arsenates and Vanadates | |||
| ⓘ | Scorodite | 8.CD.10 | Fe3+AsO4 · 2H2O |
| Group 9 - Silicates | |||
| ⓘ | Grossular | 9.AD.25 | Ca3Al2(SiO4)3 |
| ⓘ | Titanite | 9.AG.15 | CaTiO(SiO4) |
| ⓘ | Uranophane | 9.AK.15 | Ca(UO2)2(SiO3OH)2 · 5H2O |
| ⓘ | Edgarbaileyite | 9.BC.25 | [Hg2]2+3[Si2O7] |
| ⓘ | Epidote | 9.BG.05a | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| ⓘ | Zoisite | 9.BG.10 | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| ⓘ | Prehnite | 9.DP.20 | Ca2Al2Si3O10(OH)2 |
| ⓘ | Clintonite | 9.EC.35 | CaAlMg2(SiAl3O10)(OH)2 |
| ⓘ | Beidellite | 9.EC.40 | (Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O |
| ⓘ | Montmorillonite | 9.EC.40 | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| ⓘ | Kaolinite | 9.ED.05 | Al2(Si2O5)(OH)4 |
| ⓘ | Orthoclase | 9.FA.30 | K(AlSi3O8) |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| ⓘ | Natrolite | 9.GA.05 | Na2Al2Si3O10 · 2H2O |
| ⓘ | Analcime | 9.GB.05 | Na(AlSi2O6) · H2O |
| Unclassified | |||
| ⓘ | 'Apophyllite Group' | - | AB4[Si8O20]X · 8H2O |
| ⓘ | 'Limonite' | - | |
| ⓘ | 'Psilomelane' | - | |
| ⓘ | 'Wad' | - | |
| ⓘ | 'Petroleum var. Bitumen' | - | |
| ⓘ | '' | - | |
| ⓘ | 'Smectite Group' | - | A0.3D2-3[T4O10]Z2 · nH2O |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Alunite | KAl3(SO4)2(OH)6 |
| H | ⓘ Analcime | Na(AlSi2O6) · H2O |
| H | ⓘ Apophyllite Group | AB4[Si8O20]X · 8H2O |
| H | ⓘ Beidellite | (Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O |
| H | ⓘ Carnotite | K2(UO2)2(VO4)2 · 3H2O |
| H | ⓘ Clintonite | CaAlMg2(SiAl3O10)(OH)2 |
| H | ⓘ Comancheite | Hg552+N243-(NH2,OH)4(Cl,Br)34 |
| H | ⓘ Eglestonite | [Hg2]32+OCl3(OH) |
| H | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| H | ⓘ Epsomite | MgSO4 · 7H2O |
| H | ⓘ Gianellaite | [(Hg2N)2](SO4)(H2O)x |
| H | ⓘ Goethite | Fe3+O(OH) |
| H | ⓘ Gypsum | CaSO4 · 2H2O |
| H | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| H | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| H | ⓘ Kleinite | (Hg2N)(Cl,SO4) · nH2O |
| H | ⓘ Melanterite | Fe2+(H2O)6(SO4) · H2O |
| H | ⓘ Mosesite | (Hg2N)(Cl,SO4,MoO4) · H2O |
| H | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| H | ⓘ Natrolite | Na2Al2Si3O10 · 2H2O |
| H | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| H | ⓘ Scorodite | Fe3+AsO4 · 2H2O |
| H | ⓘ Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| H | ⓘ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| H | ⓘ Smectite Group | A0.3D2-3[T4O10]Z2 · nH2O |
| C | Carbon | |
| C | ⓘ Aragonite | CaCO3 |
| C | ⓘ Calcite | CaCO3 |
| N | Nitrogen | |
| N | ⓘ Comancheite | Hg552+N243-(NH2,OH)4(Cl,Br)34 |
| N | ⓘ Gianellaite | [(Hg2N)2](SO4)(H2O)x |
| N | ⓘ Kleinite | (Hg2N)(Cl,SO4) · nH2O |
| N | ⓘ Mosesite | (Hg2N)(Cl,SO4,MoO4) · H2O |
| O | Oxygen | |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Alunite | KAl3(SO4)2(OH)6 |
| O | ⓘ Analcime | Na(AlSi2O6) · H2O |
| O | ⓘ Anhydrite | CaSO4 |
| O | ⓘ Apophyllite Group | AB4[Si8O20]X · 8H2O |
| O | ⓘ Aragonite | CaCO3 |
| O | ⓘ Baryte | BaSO4 |
| O | ⓘ Beidellite | (Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O |
| O | ⓘ Calcite | CaCO3 |
| O | ⓘ Carnotite | K2(UO2)2(VO4)2 · 3H2O |
| O | ⓘ Quartz var. Chalcedony | SiO2 |
| O | ⓘ Clintonite | CaAlMg2(SiAl3O10)(OH)2 |
| O | ⓘ Comancheite | Hg552+N243-(NH2,OH)4(Cl,Br)34 |
| O | ⓘ Edgarbaileyite | [Hg2]32+[Si2O7] |
| O | ⓘ Eglestonite | [Hg2]32+OCl3(OH) |
| O | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| O | ⓘ Epsomite | MgSO4 · 7H2O |
| O | ⓘ Gianellaite | [(Hg2N)2](SO4)(H2O)x |
| O | ⓘ Goethite | Fe3+O(OH) |
| O | ⓘ Grossular | Ca3Al2(SiO4)3 |
| O | ⓘ Gypsum | CaSO4 · 2H2O |
| O | ⓘ Hematite | Fe2O3 |
| O | ⓘ Ilmenite | Fe2+TiO3 |
| O | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| O | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| O | ⓘ Kleinite | (Hg2N)(Cl,SO4) · nH2O |
| O | ⓘ Melanterite | Fe2+(H2O)6(SO4) · H2O |
| O | ⓘ Montroydite | HgO |
| O | ⓘ Mosesite | (Hg2N)(Cl,SO4,MoO4) · H2O |
| O | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| O | ⓘ Natrolite | Na2Al2Si3O10 · 2H2O |
| O | ⓘ Orthoclase | K(AlSi3O8) |
| O | ⓘ Pinchite | Hg52+Cl2O4 |
| O | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| O | ⓘ Pyrolusite | Mn4+O2 |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Schuetteite | Hg32+O2(SO4) |
| O | ⓘ Scorodite | Fe3+AsO4 · 2H2O |
| O | ⓘ Terlinguaite | [Hg3]4+Hg2+Cl2O2 |
| O | ⓘ Titanite | CaTiO(SiO4) |
| O | ⓘ Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| O | ⓘ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| O | ⓘ Smectite Group | A0.3D2-3[T4O10]Z2 · nH2O |
| O | ⓘ Terlinguacreekite | Hg32+Cl2O2 |
| F | Fluorine | |
| F | ⓘ Fluorite | CaF2 |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Na | ⓘ Analcime | Na(AlSi2O6) · H2O |
| Na | ⓘ Beidellite | (Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O |
| Na | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Na | ⓘ Natrolite | Na2Al2Si3O10 · 2H2O |
| Mg | Magnesium | |
| Mg | ⓘ Clintonite | CaAlMg2(SiAl3O10)(OH)2 |
| Mg | ⓘ Epsomite | MgSO4 · 7H2O |
| Mg | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Al | Aluminium | |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Alunite | KAl3(SO4)2(OH)6 |
| Al | ⓘ Analcime | Na(AlSi2O6) · H2O |
| Al | ⓘ Beidellite | (Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O |
| Al | ⓘ Clintonite | CaAlMg2(SiAl3O10)(OH)2 |
| Al | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Al | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Al | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Al | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Al | ⓘ Natrolite | Na2Al2Si3O10 · 2H2O |
| Al | ⓘ Orthoclase | K(AlSi3O8) |
| Al | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Al | ⓘ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| Si | Silicon | |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Analcime | Na(AlSi2O6) · H2O |
| Si | ⓘ Apophyllite Group | AB4[Si8O20]X · 8H2O |
| Si | ⓘ Beidellite | (Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O |
| Si | ⓘ Quartz var. Chalcedony | SiO2 |
| Si | ⓘ Clintonite | CaAlMg2(SiAl3O10)(OH)2 |
| Si | ⓘ Edgarbaileyite | [Hg2]32+[Si2O7] |
| Si | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Si | ⓘ Kaolinite | Al2(Si2O5)(OH)4 |
| Si | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Si | ⓘ Natrolite | Na2Al2Si3O10 · 2H2O |
| Si | ⓘ Orthoclase | K(AlSi3O8) |
| Si | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Titanite | CaTiO(SiO4) |
| Si | ⓘ Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| Si | ⓘ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| S | Sulfur | |
| S | ⓘ Alunite | KAl3(SO4)2(OH)6 |
| S | ⓘ Anhydrite | CaSO4 |
| S | ⓘ Baryte | BaSO4 |
| S | ⓘ Cinnabar | HgS |
| S | ⓘ Corderoite | Hg32+S2Cl2 |
| S | ⓘ Epsomite | MgSO4 · 7H2O |
| S | ⓘ Gianellaite | [(Hg2N)2](SO4)(H2O)x |
| S | ⓘ Gypsum | CaSO4 · 2H2O |
| S | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| S | ⓘ Kleinite | (Hg2N)(Cl,SO4) · nH2O |
| S | ⓘ Marcasite | FeS2 |
| S | ⓘ Melanterite | Fe2+(H2O)6(SO4) · H2O |
| S | ⓘ Metacinnabar | HgS |
| S | ⓘ Mosesite | (Hg2N)(Cl,SO4,MoO4) · H2O |
| S | ⓘ Pyrite | FeS2 |
| S | ⓘ Schuetteite | Hg32+O2(SO4) |
| Cl | Chlorine | |
| Cl | ⓘ Calomel | [Hg2]2+Cl2 |
| Cl | ⓘ Comancheite | Hg552+N243-(NH2,OH)4(Cl,Br)34 |
| Cl | ⓘ Corderoite | Hg32+S2Cl2 |
| Cl | ⓘ Eglestonite | [Hg2]32+OCl3(OH) |
| Cl | ⓘ Kleinite | (Hg2N)(Cl,SO4) · nH2O |
| Cl | ⓘ Mosesite | (Hg2N)(Cl,SO4,MoO4) · H2O |
| Cl | ⓘ Pinchite | Hg52+Cl2O4 |
| Cl | ⓘ Terlinguaite | [Hg3]4+Hg2+Cl2O2 |
| Cl | ⓘ Terlinguacreekite | Hg32+Cl2O2 |
| K | Potassium | |
| K | ⓘ Alunite | KAl3(SO4)2(OH)6 |
| K | ⓘ Carnotite | K2(UO2)2(VO4)2 · 3H2O |
| K | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| K | ⓘ Orthoclase | K(AlSi3O8) |
| Ca | Calcium | |
| Ca | ⓘ Anhydrite | CaSO4 |
| Ca | ⓘ Aragonite | CaCO3 |
| Ca | ⓘ Beidellite | (Na,Ca0.5)0.3Al2((Si,Al)4O10)(OH)2 · nH2O |
| Ca | ⓘ Calcite | CaCO3 |
| Ca | ⓘ Clintonite | CaAlMg2(SiAl3O10)(OH)2 |
| Ca | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Fluorite | CaF2 |
| Ca | ⓘ Grossular | Ca3Al2(SiO4)3 |
| Ca | ⓘ Gypsum | CaSO4 · 2H2O |
| Ca | ⓘ Montmorillonite | (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O |
| Ca | ⓘ Prehnite | Ca2Al2Si3O10(OH)2 |
| Ca | ⓘ Titanite | CaTiO(SiO4) |
| Ca | ⓘ Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
| Ca | ⓘ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| Ti | Titanium | |
| Ti | ⓘ Ilmenite | Fe2+TiO3 |
| Ti | ⓘ Titanite | CaTiO(SiO4) |
| V | Vanadium | |
| V | ⓘ Carnotite | K2(UO2)2(VO4)2 · 3H2O |
| Mn | Manganese | |
| Mn | ⓘ Pyrolusite | Mn4+O2 |
| Fe | Iron | |
| Fe | ⓘ Epidote | (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH) |
| Fe | ⓘ Goethite | Fe3+O(OH) |
| Fe | ⓘ Hematite | Fe2O3 |
| Fe | ⓘ Ilmenite | Fe2+TiO3 |
| Fe | ⓘ Jarosite | KFe33+(SO4)2(OH)6 |
| Fe | ⓘ Marcasite | FeS2 |
| Fe | ⓘ Melanterite | Fe2+(H2O)6(SO4) · H2O |
| Fe | ⓘ Pyrite | FeS2 |
| Fe | ⓘ Scorodite | Fe3+AsO4 · 2H2O |
| As | Arsenic | |
| As | ⓘ Scorodite | Fe3+AsO4 · 2H2O |
| Br | Bromine | |
| Br | ⓘ Comancheite | Hg552+N243-(NH2,OH)4(Cl,Br)34 |
| Mo | Molybdenum | |
| Mo | ⓘ Mosesite | (Hg2N)(Cl,SO4,MoO4) · H2O |
| Ag | Silver | |
| Ag | ⓘ Native Silver var. Amalgam | (Ag,Hg) |
| Ag | ⓘ Native Silver | Ag |
| Ba | Barium | |
| Ba | ⓘ Baryte | BaSO4 |
| Hg | Mercury | |
| Hg | ⓘ Native Silver var. Amalgam | (Ag,Hg) |
| Hg | ⓘ Calomel | [Hg2]2+Cl2 |
| Hg | ⓘ Cinnabar | HgS |
| Hg | ⓘ Comancheite | Hg552+N243-(NH2,OH)4(Cl,Br)34 |
| Hg | ⓘ Corderoite | Hg32+S2Cl2 |
| Hg | ⓘ Edgarbaileyite | [Hg2]32+[Si2O7] |
| Hg | ⓘ Eglestonite | [Hg2]32+OCl3(OH) |
| Hg | ⓘ Gianellaite | [(Hg2N)2](SO4)(H2O)x |
| Hg | ⓘ Kleinite | (Hg2N)(Cl,SO4) · nH2O |
| Hg | ⓘ Native Mercury | Hg |
| Hg | ⓘ Metacinnabar | HgS |
| Hg | ⓘ Montroydite | HgO |
| Hg | ⓘ Mosesite | (Hg2N)(Cl,SO4,MoO4) · H2O |
| Hg | ⓘ Pinchite | Hg52+Cl2O4 |
| Hg | ⓘ Schuetteite | Hg32+O2(SO4) |
| Hg | ⓘ Terlinguaite | [Hg3]4+Hg2+Cl2O2 |
| Hg | ⓘ Terlinguacreekite | Hg32+Cl2O2 |
| U | Uranium | |
| U | ⓘ Carnotite | K2(UO2)2(VO4)2 · 3H2O |
| U | ⓘ Uranophane | Ca(UO2)2(SiO3OH)2 · 5H2O |
Localities in this Region
- Texas
- Brewster County
- Bobs Mine (Maggie Sink Mine; Neyland-Davis Mine; Mitchell-Gillette Mine)
- Brown prospect
- Canyon group
- Chisos Mine (McKinney-Parker Mine)
- Colquitt-Tigner Mine (Waldron Mine)
- Coltrins camp
- Duncan group (Hoover and Pilkington)
- Lafarell mine
- Le Roi mine
- Little 38 Mine
- Lone Star mine (Tres Cuevas mine; National Resources claims)
- Lowe prospect
- Margaret D lode (Maggie D lode)
- Mariposa Mine
- McGoirk mine
- Monte Cristo and Croesus mine
- Pickens Oil prospect (La Escondida prospect)
- Rainbow Mine
- Rio Grande Quicksilver mine
- Sample group (Duncan prospects)
- Section 98 mine
- Brewster County
- Texas
- Brewster County
- Shoemaker mine
- Star Mine
- Study Butte
- Tarrant mine
- ⭔Terlingua
- Two Forty-eight prospect
- Unnamed localities (EM-BR-V25-22)
- Unnamed localities on Reed Plateau (EM-BR-V25-23)
- Unnamed localities south of Black Mesa (EM-BR-V25-21)
- Unnamed locality (EM-BR-V24-6)
- Unnamed mine (EM-BR-V25-14)
- Unnamed prospect (EM-BR-U24-2)
- Unnamed prospect (EM-BR-V24-4)
- Unnamed prospect (EM-BR-V24-5)
- Unnamed prospect (EM-BR-V26-5)
- Unnamed prospect (EM-BR-V26-8)
- Waldron workings
- Presidio County
- Brewster County
Other Regions, Features and Areas that Intersect
North AmericaContinent
North America PlateTectonic Plate
- Marathon-Marfa BasinsBasin
- Sabine DomainDomain
- Shawnee DomainDomain
- Sierra Madre OrientalWide Rift
- Tascotal BasinBasin
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
Hillebrand, W.F.; Schaller, W.T. (1909) The mercury minerals from Terlingua, Texas. Bulletin 405. US Geological Survey p.1-174. doi:10.3133/b405
Terlingua Mining District, Texas, USA