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Red Hills, Derry District, Sierra Co., New Mexico, USAi
Regional Level Types
Red HillsGroup of Hills
Derry DistrictMining District
Sierra Co.County
New MexicoState
USACountry

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Key
Latitude & Longitude (WGS84):
33° North , 107° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~32km
Locality type:
Group of Hills


A Th-U-Pb-V-Mo occurrence located in the Caballo Mountains.

At least 45 radioactive, dike-like and tabular, deep-red bodies of syenite that crop out in the Red Hills area are modestly enriched in heavy rare earth elements (HREE). These coarse-grained, microcline-rich syenites range from 1 to 100 m (3.3 to 328 ft) in length and several centimeters to 10 m (1 in. to 33 ft) in width (McLemore, 1986). The syenite bodies are composed mainly of microcline and contain lesser amounts of quartz, muscovite, hematite, goethite, chlorite, and plagioclase and accessory apatite, zircon, calcite, fluorite, limonite, magnetite, and baryte. The radioactivity originates in uranium and thorium residing in with spinel, rutile, anatase, thorite, thorogummite, and possibly uraninite (Staatz et al., 1965; McLemore, 1986).

Regions containing this locality

North America PlateTectonic Plate

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


20 valid minerals.

Detailed Mineral List:

'Albite-Anorthite Series'
Reference: USGS Open File report 2010-5220
Anatase
Formula: TiO2
Reference: USGS Open File report 2010-5220
'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Reference: USGS Open File report 2010-5220
Baryte
Formula: BaSO4
Reference: USGS Open File report 2010-5220
'Bastnäsite'
Reference: Minerals of New Mexico 3rd ed.
Calcite
Formula: CaCO3
Reference: USGS Open File report 2010-5220
'Chlorite Group'
Reference: USGS Open File report 2010-5220
'Clays'
Reference: Jerry Cone Collection
Fluorite
Formula: CaF2
Reference: USGS Open File report 2010-5220
Goethite
Formula: α-Fe3+O(OH)
Reference: USGS Open File report 2010-5220
Hematite
Formula: Fe2O3
Reference: USGS Open File report 2010-5220
Kasolite
Formula: Pb(UO2)[SiO4] · H2O
Reference: Jerry Cone Collection
'Limonite'
Formula: (Fe,O,OH,H2O)
Reference: USGS Open File report 2010-5220
Magnetite
Formula: Fe2+Fe3+2O4
Reference: USGS Open File report 2010-5220
Microcline
Formula: K(AlSi3O8)
Reference: Minerals of New Mexico 3rd ed.; USGS Open File report 2010-5220
'Mimetite-Vanadinite Series'
Reference: Jerry Cone Collection
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: USGS Open File report 2010-5220
Orthoclase
Formula: K(AlSi3O8)
Reference: Minerals of New Mexico 3rd ed.
Quartz
Formula: SiO2
Reference: USGS Open File report 2010-5220
Rutile
Formula: TiO2
Reference: USGS Open File report 2010-5220
Spinel
Formula: MgAl2O4
Reference: USGS Open File report 2010-5220
Stolzite
Formula: Pb(WO4)
Reference: Jerry Cone Collection
'Stolzite-Wulfenite Series'
Reference: Jerry Cone Collection
Thorite
Formula: Th(SiO4)
Reference: USGS Open File report 2010-5220
Thorite var: Uranothorite
Formula: (Th,U)SiO4
Reference: Minerals of New Mexico 3rd ed.
'Thorogummite'
Formula: (Th,U)(SiO4)1-x(OH)4x
Reference: USGS Open File report 2010-5220
Uraninite
Formula: UO2
Reference: USGS Open File report 2010-5220
Uranophane
Formula: Ca(UO2)2(SiO3OH)2 · 5H2O
Reference: Minerals of New Mexico 3rd ed.
Vanadinite
Formula: Pb5(VO4)3Cl
Reference: Jerry Cone Collection
Zircon
Formula: Zr(SiO4)
Reference: USGS Open File report 2010-5220

List of minerals arranged by Strunz 10th Edition classification

Group 3 - Halides
Fluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
Anatase4.DD.05TiO2
Goethite4.00.α-Fe3+O(OH)
Hematite4.CB.05Fe2O3
Magnetite4.BB.05Fe2+Fe3+2O4
Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
Spinel4.BB.05MgAl2O4
Uraninite4.DL.05UO2
Group 5 - Nitrates and Carbonates
Calcite5.AB.05CaCO3
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
Baryte7.AD.35BaSO4
Stolzite7.GA.05Pb(WO4)
Group 8 - Phosphates, Arsenates and Vanadates
Vanadinite8.BN.05Pb5(VO4)3Cl
Group 9 - Silicates
Kasolite9.AK.15Pb(UO2)[SiO4] · H2O
Microcline9.FA.30K(AlSi3O8)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Orthoclase9.FA.30K(AlSi3O8)
Thorite9.AD.30Th(SiO4)
var: Uranothorite9.AD.30(Th,U)SiO4
Uranophane9.AK.15Ca(UO2)2(SiO3OH)2 · 5H2O
Zircon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Albite-Anorthite Series'-
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Bastnäsite'-
'Chlorite Group'-
'Clays'-
'Limonite'-(Fe,O,OH,H2O)
'Mimetite-Vanadinite Series'-
'Stolzite-Wulfenite Series'-
'Thorogummite'-(Th,U)(SiO4)1-x(OH)4x

List of minerals arranged by Dana 8th Edition classification

Group 4 - SIMPLE OXIDES
A2X3
Hematite4.3.1.2Fe2O3
AX2
Anatase4.4.4.1TiO2
Rutile4.4.1.1TiO2
Group 5 - OXIDES CONTAINING URANIUM OR THORIUM
AXO2·xH2O
Uraninite5.1.1.1UO2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Spinel7.2.1.1MgAl2O4
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Group 28 - ANHYDROUS ACID AND NORMAL SULFATES
AXO4
Baryte28.3.1.1BaSO4
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
A5(XO4)3Zq
Vanadinite41.8.4.3Pb5(VO4)3Cl
Group 48 - ANHYDROUS MOLYBDATES AND TUNGSTATES
AXO4
Stolzite48.1.3.2Pb(WO4)
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in >[6] coordination
Thorite51.5.2.3Th(SiO4)
'Thorogummite'51.5.2.5(Th,U)(SiO4)1-x(OH)4x
Zircon51.5.2.1Zr(SiO4)
Group 53 - NESOSILICATES Insular SiO4 Groups and Other Anions or Complex Cations
Insular SiO4 Groups and Other Anions of Complex Cations with (UO2)
Kasolite53.3.1.1Pb(UO2)[SiO4] · H2O
Uranophane53.3.1.2Ca(UO2)2(SiO3OH)2 · 5H2O
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Microcline76.1.1.5K(AlSi3O8)
Orthoclase76.1.1.1K(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
'Albite-Anorthite Series'-
'Apatite'-Ca5(PO4)3(Cl/F/OH)
'Bastnäsite'-
'Chlorite Group'-
'Clays'-
'Limonite'-(Fe,O,OH,H2O)
'Mimetite-Vanadinite Series'-
'Stolzite-Wulfenite Series'-
Thorite
var: Uranothorite
-(Th,U)SiO4

List of minerals for each chemical element

HHydrogen
H UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
H KasolitePb(UO2)[SiO4] · H2O
H MuscoviteKAl2(AlSi3O10)(OH)2
H Goethiteα-Fe3+O(OH)
H ApatiteCa5(PO4)3(Cl/F/OH)
H Limonite(Fe,O,OH,H2O)
H Thorogummite(Th,U)(SiO4)1-x(OH)4x
CCarbon
C CalciteCaCO3
OOxygen
O HematiteFe2O3
O MagnetiteFe2+Fe23+O4
O MicroclineK(AlSi3O8)
O OrthoclaseK(AlSi3O8)
O RutileTiO2
O SpinelMgAl2O4
O ThoriteTh(SiO4)
O Thorite (var: Uranothorite)(Th,U)SiO4
O UraniniteUO2
O UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
O ZirconZr(SiO4)
O KasolitePb(UO2)[SiO4] · H2O
O QuartzSiO2
O MuscoviteKAl2(AlSi3O10)(OH)2
O Goethiteα-Fe3+O(OH)
O ApatiteCa5(PO4)3(Cl/F/OH)
O CalciteCaCO3
O Limonite(Fe,O,OH,H2O)
O BaryteBaSO4
O AnataseTiO2
O Thorogummite(Th,U)(SiO4)1-x(OH)4x
O VanadinitePb5(VO4)3Cl
O StolzitePb(WO4)
FFluorine
F FluoriteCaF2
F ApatiteCa5(PO4)3(Cl/F/OH)
MgMagnesium
Mg SpinelMgAl2O4
AlAluminium
Al MicroclineK(AlSi3O8)
Al OrthoclaseK(AlSi3O8)
Al SpinelMgAl2O4
Al MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Si MicroclineK(AlSi3O8)
Si OrthoclaseK(AlSi3O8)
Si ThoriteTh(SiO4)
Si Thorite (var: Uranothorite)(Th,U)SiO4
Si UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Si ZirconZr(SiO4)
Si KasolitePb(UO2)[SiO4] · H2O
Si QuartzSiO2
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si Thorogummite(Th,U)(SiO4)1-x(OH)4x
PPhosphorus
P ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
S BaryteBaSO4
ClChlorine
Cl ApatiteCa5(PO4)3(Cl/F/OH)
Cl VanadinitePb5(VO4)3Cl
KPotassium
K MicroclineK(AlSi3O8)
K OrthoclaseK(AlSi3O8)
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca FluoriteCaF2
Ca UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
Ca ApatiteCa5(PO4)3(Cl/F/OH)
Ca CalciteCaCO3
TiTitanium
Ti RutileTiO2
Ti AnataseTiO2
VVanadium
V VanadinitePb5(VO4)3Cl
FeIron
Fe HematiteFe2O3
Fe MagnetiteFe2+Fe23+O4
Fe Goethiteα-Fe3+O(OH)
Fe Limonite(Fe,O,OH,H2O)
ZrZirconium
Zr ZirconZr(SiO4)
BaBarium
Ba BaryteBaSO4
WTungsten
W StolzitePb(WO4)
PbLead
Pb KasolitePb(UO2)[SiO4] · H2O
Pb VanadinitePb5(VO4)3Cl
Pb StolzitePb(WO4)
ThThorium
Th ThoriteTh(SiO4)
Th Thorite (var: Uranothorite)(Th,U)SiO4
Th Thorogummite(Th,U)(SiO4)1-x(OH)4x
UUranium
U Thorite (var: Uranothorite)(Th,U)SiO4
U UraniniteUO2
U UranophaneCa(UO2)2(SiO3OH)2 · 5H2O
U KasolitePb(UO2)[SiO4] · H2O
U Thorogummite(Th,U)(SiO4)1-x(OH)4x

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Staatz, Mortimer H., John W. Adams, and Nancy M. Conklin (1965): Thorium-bearing Microcline-rich Rocks in the Southern Caballo Mountains, Sierra County, New Mexico, Denver, Colo. USGS Professional Paper 525-D.
McLemore, V.T. (1986): Geology, Geochemistry and Mineralization of Syenites in the Red Hills, southern Caballo Mountains, Sierra County, New Mexico - preliminary observations. In: Clemons, R.E., King, W.E.. and Mack, G.H., editors, Truth or Consequences region, New Mexico Geological Society, Thirty-Seventh Annual Field Conference, October 16-18, 1986, New Mexico Geological Society: 151-159.
Long, Keith R., Bradley, S. Van Gosen, Nora K. Foley and Daniel Cordier (2010): The Principal Rare Earth Elements Deposits of the United States - A Summary of Domestic Deposits and a Global Perspective. USGS Scientific Investigations Report 2010-5220.


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