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Morro do Ferro, Poços de Caldas, Poços de Caldas alkaline complex, Minas Gerais, Brazil

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Latitude & Longitude (WGS84): 21° 55' 0'' South , 46° 31' 59'' West
Latitude & Longitude (decimal): -21.91667,-46.53333
GeoHash:G#: 6ungm45qn
Köppen climate type:Cfa : Humid subtropical climate
Name(s) in local language(s):Morro do Ferro, Poços de Caldas, complexo alcalino de Poços de Caldas
Other/historical names associated with this locality:Morro Alto e Consulta


Thorium deposit, consisting of magnetite stockworks in highly weathered alkaline rocks. The deposit was studied as a natural analogue for nuclear waste disposal. Once the world's largest baddeleyite deposit, but now depleted.

Originally known as "Morro Alto e Consulta".

Regions containing this locality

Poços de Caldas alkaline complex, Minas Gerais, Brazil

Complex - 134 mineral species & varietal names listed

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


45 valid minerals. 1 erroneous literature entry.

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Reference: Waber (1991)
'Allanite Group'
Formula: {A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
Reference: Baretto & Fujimori (1986)
Alunite
Formula: KAl3(SO4)2(OH)6
Reference: Waber (1991)
Anatase
Formula: TiO2
Reference: Baretto & Fujimori (1986)
Baddeleyite
Formula: ZrO2
Reference: Wedow (1967)
'Bastnäsite'
Reference: Baretto & Fujimori (1986)
Birnessite
Formula: (Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Reference: Waber (1991)
Brannerite
Formula: (U4+,REE,Th,Ca)(Ti,Fe3+,Nb)2(O,OH)6
Reference: Waber et al. (1992) Jour. Geochemical Explor. 45, 53-112
Calcite
Formula: CaCO3
Reference: Waber (1991)
Cancrinite
Formula: (Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Reference: Machado (1888)
Cavoite
Formula: CaV4+3O7
Description: On-line version of Handbook page (http://rruff.info/doclib/hom/cavoite.pdf) is in fact that of cerianite-(Ce).
Reference: Handbook of Mineralogy
Cerianite-(Ce)
Formula: (Ce4+,Th)O2
Reference: Baretto & Fujimori (1986)
Cheralite
Formula: CaTh(PO4)2
Reference: Baretto & Fujimori (1986)
'Chlorite Group'
Reference: Waber (1991)
Coffinite
Formula: U(SiO4) · nH2O
Reference: Baretto & Fujimori (1986)
Crandallite
Formula: CaAl3(PO4)(PO3OH)(OH)6
Reference: Waber (1991)
Cryptomelane
Formula: K(Mn4+7Mn3+)O16
Reference: Waber (1991)
Ferrihydrite
Formula: Fe3+10O14(OH)2
Reference: Waber (1991)
Florencite-(Ce)
Formula: CeAl3(PO4)2(OH)6
Reference: Waber (1991)
Fluorite
Formula: CaF2
Reference: Baretto & Fujimori (1986) & others
Gibbsite
Formula: Al(OH)3
Reference: Waber (1991)
Goethite
Formula: α-Fe3+O(OH)
Reference: Waber (1991)
Gorceixite
Formula: BaAl3(PO4)(PO3OH)(OH)6
Reference: Waber (1991)
Goyazite
Formula: SrAl3(PO4)(PO3OH)(OH)6
Reference: Waber (1991)
Hematite
Formula: Fe2O3
Reference: USGS Bull 1185-D
Jarosite
Formula: KFe3+ 3(SO4)2(OH)6
Reference: Waber (1991)
Kaolinite
Formula: Al2(Si2O5)(OH)4
Reference: Baretto & Fujimori (1986; Waber (1991)
Lanthanite-(Nd)
Formula: (Nd,La)2(CO3)3 · 8H2O
Reference: Waber (1991)
Lepidocrocite
Formula: γ-Fe3+O(OH)
Reference: Waber (1991)
Lithiophilite
Formula: LiMn2+PO4
Reference: Waber (1991)
Lithiophorite
Formula: (Al,Li)MnO2(OH)2
Reference: Waber (1991)
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Baretto & Fujimori (1986)
Microcline
Formula: K(AlSi3O8)
Reference: Baretto & Fujimori (1986)
'Microlite Group'
Formula: A2-mTa2X6-wZ-n
Reference: Baretto & Fujimori (1986)
'Monazite'
Reference: Baretto & Fujimori (1986)
Montmorillonite
Formula: (Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Reference: Waber (1991)
Nepheline
Formula: Na3K(Al4Si4O16)
Reference: Baretto & Fujimori (1986) & others
Nsutite
Formula: (Mn4+,Mn2+)(O,OH)2
Reference: Waber (1991)
Plumbogummite
Formula: PbAl3(PO4)(PO3OH)(OH)6
Reference: Waber (1991)
Pyrite
Formula: FeS2
Reference: Waber (1991) and others
'Pyrochlore Group'
Formula: A2Nb2(O,OH)6Z
Reference: Waber (1991)
Pyrolusite
Formula: Mn4+O2
Reference: Waber (1991)
Rutile
Formula: TiO2
Reference: Baretto & Fujimori (1986)
Siderite
Formula: FeCO3
Reference: Waber (1991)
'Smectite Group'
Formula: A0.3D2-3[T4O10]Z2 · nH2O
Reference: Waber (1991)
Sphalerite
Formula: ZnS
Reference: Waber (1991)
Spinel
Formula: MgAl2O4
Reference: Waber (1991)
Thorbastnäsite
Formula: ThCa(CO3)2F2 · 3H2O
Reference: Baretto & Fujimori (1986)
Thorianite
Formula: ThO2
Reference: Baretto & Fujimori (1986)
Thorite
Formula: Th(SiO4)
Reference: Waber (1991)
'Thorogummite'
Formula: (Th,U)(SiO4)1-x(OH)4x
Reference: Baretto & Fujimori (1986)
Titanite
Formula: CaTi(SiO4)O
Reference: Baretto & Fujimori (1986)
Wollastonite
Formula: CaSiO3
Reference: Waber (1991)
Zircon
Formula: Zr(SiO4)
Reference: Baretto & Fujimori (1986)

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
'Pyrite'2.EB.05aFeS2
'Sphalerite'2.CB.05aZnS
Group 3 - Halides
'Fluorite'3.AB.25CaF2
Group 4 - Oxides and Hydroxides
'Anatase'4.DD.05TiO2
'Baddeleyite'4.DE.35ZrO2
'Birnessite'4.FL.45(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
'Brannerite'4.DH.05(U4+,REE,Th,Ca)(Ti,Fe3+,Nb)2(O,OH)6
'Cavoite' ?4.HE.40CaV4+3O7
'Cerianite-(Ce)'4.DL.05(Ce4+,Th)O2
'Cryptomelane'4.DK.05aK(Mn4+7Mn3+)O16
'Ferrihydrite'4.FE.35Fe3+10O14(OH)2
'Gibbsite'4.FE.10Al(OH)3
'Goethite'4.00.α-Fe3+O(OH)
'Hematite'4.CB.05Fe2O3
'Lepidocrocite'4.FE.15γ-Fe3+O(OH)
'Lithiophorite'4.FE.25(Al,Li)MnO2(OH)2
'Magnetite'4.BB.05Fe2+Fe3+2O4
'Microlite Group'4.00.A2-mTa2X6-wZ-n
'Nsutite'4.DB.15c(Mn4+,Mn2+)(O,OH)2
'Pyrochlore Group'4.00.A2Nb2(O,OH)6Z
'Pyrolusite'4.DB.05Mn4+O2
'Rutile'4.DB.05TiO2
'Spinel'4.BB.05MgAl2O4
'Thorianite'4.DL.05ThO2
Group 5 - Nitrates and Carbonates
'Calcite'5.AB.05CaCO3
'Lanthanite-(Nd)'5.CC.25(Nd,La)2(CO3)3 · 8H2O
'Siderite'5.AB.05FeCO3
'Thorbastnäsite'5.BD.20aThCa(CO3)2F2 · 3H2O
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
'Alunite'7.BC.10KAl3(SO4)2(OH)6
'Jarosite'7.BC.10KFe3+ 3(SO4)2(OH)6
Group 8 - Phosphates, Arsenates and Vanadates
'Cheralite'8.AD.50CaTh(PO4)2
'Crandallite'8.BL.10CaAl3(PO4)(PO3OH)(OH)6
'Florencite-(Ce)'8.BL.13CeAl3(PO4)2(OH)6
'Gorceixite'8.BL.10BaAl3(PO4)(PO3OH)(OH)6
'Goyazite'8.BL.10SrAl3(PO4)(PO3OH)(OH)6
'Lithiophilite'8.AB.10LiMn2+PO4
'Plumbogummite'8.BL.10PbAl3(PO4)(PO3OH)(OH)6
Group 9 - Silicates
'Albite'9.FA.35Na(AlSi3O8)
'Cancrinite'9.FB.05(Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
'Coffinite'9.AD.30U(SiO4) · nH2O
'Kaolinite'9.ED.05Al2(Si2O5)(OH)4
'Microcline'9.FA.30K(AlSi3O8)
'Montmorillonite'9.EC.40(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
'Nepheline'9.FA.05Na3K(Al4Si4O16)
'Thorite'9.AD.30Th(SiO4)
'Titanite'9.AG.15CaTi(SiO4)O
'Wollastonite'9.DG.05CaSiO3
'Zircon'9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Bastnäsite'-
'Chlorite Group'-
'Monazite'-
'Smectite Group'-A0.3D2-3[T4O10]Z2 · nH2O
'Thorogummite'-(Th,U)(SiO4)1-x(OH)4x

List of minerals arranged by Dana 8th Edition classification

Group 2 - SULFIDES
AmXp, with m:p = 1:1
Sphalerite2.8.2.1ZnS
AmBnXp, with (m+n):p = 1:2
Pyrite2.12.1.1FeS2
Group 4 - SIMPLE OXIDES
A2X3
Ferrihydrite4.3.2.2Fe3+10O14(OH)2
Hematite4.3.1.2Fe2O3
AX2
Anatase4.4.4.1TiO2
Baddeleyite4.4.14.1ZrO2
Cerianite-(Ce)4.4.12.1(Ce4+,Th)O2
Nsutite4.4.8.1(Mn4+,Mn2+)(O,OH)2
Pyrolusite4.4.1.4Mn4+O2
Rutile4.4.1.1TiO2
Group 5 - OXIDES CONTAINING URANIUM OR THORIUM
AXO2·xH2O
Thorianite5.1.1.2ThO2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
XO(OH)
Goethite6.1.1.2α-Fe3+O(OH)
Lepidocrocite6.1.2.2γ-Fe3+O(OH)
X(OH)3
Gibbsite6.3.1.1Al(OH)3
Miscellaneous
Lithiophorite6.4.1.1(Al,Li)MnO2(OH)2
Group 7 - MULTIPLE OXIDES
AB2X4
Magnetite7.2.2.3Fe2+Fe3+2O4
Spinel7.2.1.1MgAl2O4
(AB)2X3
Birnessite7.5.3.1(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
AB8X16
Cryptomelane7.9.1.2K(Mn4+7Mn3+)O16
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
A2B2O6(O,OH,F)
'Microlite Group'8.2.2.1A2-mTa2X6-wZ-n
'Pyrochlore Group'8.2.1.1A2Nb2(O,OH)6Z
AB2O6
Brannerite8.3.4.1(U4+,REE,Th,Ca)(Ti,Fe3+,Nb)2(O,OH)6
Group 9 - NORMAL HALIDES
AX2
Fluorite9.2.1.1CaF2
Group 14 - ANHYDROUS NORMAL CARBONATES
A(XO3)
Calcite14.1.1.1CaCO3
Siderite14.1.1.3FeCO3
Group 15 - HYDRATED NORMAL CARBONATES
AmBn(XO3)p·xH2O, with (m+n):p < 1:1
Lanthanite-(Nd)15.4.2.2(Nd,La)2(CO3)3 · 8H2O
Group 16b - HYDRATED CARBONATES CONTAINING HYDROXYL OR HALOGEN
Thorbastnäsite16b.1.2.1ThCa(CO3)2F2 · 3H2O
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
Group 38 - ANHYDROUS NORMAL PHOSPHATES, ARSENATES, AND VANADATES
ABXO4
Lithiophilite38.1.1.2LiMn2+PO4
AXO4
Cheralite38.4.3.5CaTh(PO4)2
Group 41 - ANHYDROUS PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq
Florencite-(Ce)41.5.10.2CeAl3(PO4)2(OH)6
Group 42 - HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
(AB)2(XO4)Zq·xH2O
Crandallite42.7.3.1CaAl3(PO4)(PO3OH)(OH)6
Gorceixite42.7.3.2BaAl3(PO4)(PO3OH)(OH)6
Goyazite42.7.3.3SrAl3(PO4)(PO3OH)(OH)6
Plumbogummite42.7.3.5PbAl3(PO4)(PO3OH)(OH)6
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in >[6] coordination
Coffinite51.5.2.4U(SiO4) · nH2O
Thorite51.5.2.3Th(SiO4)
'Thorogummite'51.5.2.5(Th,U)(SiO4)1-x(OH)4x
Zircon51.5.2.1Zr(SiO4)
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] and/or >[6] coordination
Titanite52.4.3.1CaTi(SiO4)O
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=3
Wollastonite65.2.1.1cCaSiO3
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 clays
Montmorillonite71.3.1a.2(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Microcline76.1.1.5K(AlSi3O8)
Al-Si Framework Feldspathoids and related species
Cancrinite76.2.5.3(Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Nepheline76.2.1.2Na3K(Al4Si4O16)
Unclassified Minerals, Rocks, etc.
'Allanite Group'-{A12+REE3+}{M3+2M32+}(Si2O7)(SiO4)O(OH)
'Bastnäsite'-
Cavoite ?-CaV4+3O7
'Chlorite Group'-
Kaolinite-Al2(Si2O5)(OH)4
'Monazite'-
'Smectite Group'-A0.3D2-3[T4O10]Z2 · nH2O

List of minerals for each chemical element

HHydrogen
H Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
H AluniteKAl3(SO4)2(OH)6
H Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
H Brannerite(U4+,REE,Th,Ca)(Ti,Fe3+,Nb)2(O,OH)6
H Cancrinite(Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
H CoffiniteU(SiO4) · nH2O
H CrandalliteCaAl3(PO4)(PO3OH)(OH)6
H FerrihydriteFe103+O14(OH)2
H Florencite-(Ce)CeAl3(PO4)2(OH)6
H GibbsiteAl(OH)3
H Goethiteα-Fe3+O(OH)
H GorceixiteBaAl3(PO4)(PO3OH)(OH)6
H GoyaziteSrAl3(PO4)(PO3OH)(OH)6
H JarositeKFe3+ 3(SO4)2(OH)6
H KaoliniteAl2(Si2O5)(OH)4
H Lanthanite-(Nd)(Nd,La)2(CO3)3 · 8H2O
H Lepidocrociteγ-Fe3+O(OH)
H Lithiophorite(Al,Li)MnO2(OH)2
H Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
H Nsutite(Mn4+,Mn2+)(O,OH)2
H PlumbogummitePbAl3(PO4)(PO3OH)(OH)6
H Pyrochlore GroupA2Nb2(O,OH)6Z
H Smectite GroupA0.3D2-3[T4O10]Z2 · nH2O
H ThorbastnäsiteThCa(CO3)2F2 · 3H2O
H Thorogummite(Th,U)(SiO4)1-x(OH)4x
LiLithium
Li LithiophiliteLiMn2+PO4
Li Lithiophorite(Al,Li)MnO2(OH)2
CCarbon
C CalciteCaCO3
C Cancrinite(Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
C Lanthanite-(Nd)(Nd,La)2(CO3)3 · 8H2O
C SideriteFeCO3
C ThorbastnäsiteThCa(CO3)2F2 · 3H2O
OOxygen
O AlbiteNa(AlSi3O8)
O Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
O AluniteKAl3(SO4)2(OH)6
O AnataseTiO2
O BaddeleyiteZrO2
O Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
O Brannerite(U4+,REE,Th,Ca)(Ti,Fe3+,Nb)2(O,OH)6
O CalciteCaCO3
O Cancrinite(Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
O CavoiteCaV34+O7
O Cerianite-(Ce)(Ce4+,Th)O2
O CheraliteCaTh(PO4)2
O CoffiniteU(SiO4) · nH2O
O CrandalliteCaAl3(PO4)(PO3OH)(OH)6
O CryptomelaneK(Mn74+Mn3+)O16
O FerrihydriteFe103+O14(OH)2
O Florencite-(Ce)CeAl3(PO4)2(OH)6
O GibbsiteAl(OH)3
O Goethiteα-Fe3+O(OH)
O GorceixiteBaAl3(PO4)(PO3OH)(OH)6
O GoyaziteSrAl3(PO4)(PO3OH)(OH)6
O HematiteFe2O3
O JarositeKFe3+ 3(SO4)2(OH)6
O KaoliniteAl2(Si2O5)(OH)4
O Lanthanite-(Nd)(Nd,La)2(CO3)3 · 8H2O
O Lepidocrociteγ-Fe3+O(OH)
O LithiophiliteLiMn2+PO4
O Lithiophorite(Al,Li)MnO2(OH)2
O MagnetiteFe2+Fe23+O4
O MicroclineK(AlSi3O8)
O Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
O NephelineNa3K(Al4Si4O16)
O Nsutite(Mn4+,Mn2+)(O,OH)2
O PlumbogummitePbAl3(PO4)(PO3OH)(OH)6
O Pyrochlore GroupA2Nb2(O,OH)6Z
O PyrolusiteMn4+O2
O RutileTiO2
O SideriteFeCO3
O Smectite GroupA0.3D2-3[T4O10]Z2 · nH2O
O SpinelMgAl2O4
O ThorbastnäsiteThCa(CO3)2F2 · 3H2O
O ThorianiteThO2
O ThoriteTh(SiO4)
O Thorogummite(Th,U)(SiO4)1-x(OH)4x
O TitaniteCaTi(SiO4)O
O WollastoniteCaSiO3
O ZirconZr(SiO4)
FFluorine
F FluoriteCaF2
F ThorbastnäsiteThCa(CO3)2F2 · 3H2O
NaSodium
Na AlbiteNa(AlSi3O8)
Na Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Na Cancrinite(Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Na Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Na NephelineNa3K(Al4Si4O16)
MgMagnesium
Mg Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Mg SpinelMgAl2O4
AlAluminium
Al AlbiteNa(AlSi3O8)
Al AluniteKAl3(SO4)2(OH)6
Al Cancrinite(Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Al CrandalliteCaAl3(PO4)(PO3OH)(OH)6
Al Florencite-(Ce)CeAl3(PO4)2(OH)6
Al GibbsiteAl(OH)3
Al GorceixiteBaAl3(PO4)(PO3OH)(OH)6
Al GoyaziteSrAl3(PO4)(PO3OH)(OH)6
Al KaoliniteAl2(Si2O5)(OH)4
Al Lithiophorite(Al,Li)MnO2(OH)2
Al MicroclineK(AlSi3O8)
Al Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Al NephelineNa3K(Al4Si4O16)
Al PlumbogummitePbAl3(PO4)(PO3OH)(OH)6
Al SpinelMgAl2O4
SiSilicon
Si AlbiteNa(AlSi3O8)
Si Allanite Group{A12+REE3+}{M23+M32+}(Si2O7)(SiO4)O(OH)
Si Cancrinite(Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Si CoffiniteU(SiO4) · nH2O
Si KaoliniteAl2(Si2O5)(OH)4
Si MicroclineK(AlSi3O8)
Si Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Si NephelineNa3K(Al4Si4O16)
Si ThoriteTh(SiO4)
Si Thorogummite(Th,U)(SiO4)1-x(OH)4x
Si TitaniteCaTi(SiO4)O
Si WollastoniteCaSiO3
Si ZirconZr(SiO4)
PPhosphorus
P CheraliteCaTh(PO4)2
P CrandalliteCaAl3(PO4)(PO3OH)(OH)6
P Florencite-(Ce)CeAl3(PO4)2(OH)6
P GorceixiteBaAl3(PO4)(PO3OH)(OH)6
P GoyaziteSrAl3(PO4)(PO3OH)(OH)6
P LithiophiliteLiMn2+PO4
P PlumbogummitePbAl3(PO4)(PO3OH)(OH)6
SSulfur
S AluniteKAl3(SO4)2(OH)6
S Cancrinite(Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
S JarositeKFe3+ 3(SO4)2(OH)6
S PyriteFeS2
S SphaleriteZnS
KPotassium
K AluniteKAl3(SO4)2(OH)6
K CryptomelaneK(Mn74+Mn3+)O16
K JarositeKFe3+ 3(SO4)2(OH)6
K MicroclineK(AlSi3O8)
K NephelineNa3K(Al4Si4O16)
CaCalcium
Ca Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Ca Brannerite(U4+,REE,Th,Ca)(Ti,Fe3+,Nb)2(O,OH)6
Ca CalciteCaCO3
Ca Cancrinite(Na,Ca,☐)8(Al6Si6O24)(CO3,SO4)2 · 2H2O
Ca CavoiteCaV34+O7
Ca CheraliteCaTh(PO4)2
Ca CrandalliteCaAl3(PO4)(PO3OH)(OH)6
Ca FluoriteCaF2
Ca Montmorillonite(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2 · nH2O
Ca ThorbastnäsiteThCa(CO3)2F2 · 3H2O
Ca TitaniteCaTi(SiO4)O
Ca WollastoniteCaSiO3
TiTitanium
Ti AnataseTiO2
Ti Brannerite(U4+,REE,Th,Ca)(Ti,Fe3+,Nb)2(O,OH)6
Ti RutileTiO2
Ti TitaniteCaTi(SiO4)O
VVanadium
V CavoiteCaV34+O7
MnManganese
Mn Birnessite(Na,Ca)0.5(Mn4+,Mn3+)2O4 · 1.5H2O
Mn CryptomelaneK(Mn74+Mn3+)O16
Mn LithiophiliteLiMn2+PO4
Mn Lithiophorite(Al,Li)MnO2(OH)2
Mn Nsutite(Mn4+,Mn2+)(O,OH)2
Mn PyrolusiteMn4+O2
FeIron
Fe Brannerite(U4+,REE,Th,Ca)(Ti,Fe3+,Nb)2(O,OH)6
Fe FerrihydriteFe103+O14(OH)2
Fe Goethiteα-Fe3+O(OH)
Fe HematiteFe2O3
Fe JarositeKFe3+ 3(SO4)2(OH)6
Fe Lepidocrociteγ-Fe3+O(OH)
Fe MagnetiteFe2+Fe23+O4
Fe PyriteFeS2
Fe SideriteFeCO3
ZnZinc
Zn SphaleriteZnS
SrStrontium
Sr GoyaziteSrAl3(PO4)(PO3OH)(OH)6
ZrZirconium
Zr BaddeleyiteZrO2
Zr ZirconZr(SiO4)
NbNiobium
Nb Brannerite(U4+,REE,Th,Ca)(Ti,Fe3+,Nb)2(O,OH)6
Nb Pyrochlore GroupA2Nb2(O,OH)6Z
BaBarium
Ba GorceixiteBaAl3(PO4)(PO3OH)(OH)6
CeCerium
Ce Cerianite-(Ce)(Ce4+,Th)O2
Ce Florencite-(Ce)CeAl3(PO4)2(OH)6
NdNeodymium
Nd Lanthanite-(Nd)(Nd,La)2(CO3)3 · 8H2O
TaTantalum
Ta Microlite GroupA2-mTa2X6-wZ-n
PbLead
Pb PlumbogummitePbAl3(PO4)(PO3OH)(OH)6
ThThorium
Th Brannerite(U4+,REE,Th,Ca)(Ti,Fe3+,Nb)2(O,OH)6
Th Cerianite-(Ce)(Ce4+,Th)O2
Th CheraliteCaTh(PO4)2
Th ThorbastnäsiteThCa(CO3)2F2 · 3H2O
Th ThorianiteThO2
Th ThoriteTh(SiO4)
Th Thorogummite(Th,U)(SiO4)1-x(OH)4x
UUranium
U Brannerite(U4+,REE,Th,Ca)(Ti,Fe3+,Nb)2(O,OH)6
U CoffiniteU(SiO4) · nH2O
U Thorogummite(Th,U)(SiO4)1-x(OH)4x

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

Neoproterozoic
541 - 1000 Ma



ID: 3187316
Neoproterozoic crystalline metamorphic rocks

Age: Neoproterozoic (541 - 1000 Ma)

Lithology: Medium-high grade unclassified metamorphic rock

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

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Baretto, P.M.C. and Fujimori, K. (1986) Natural analogue studies: geology and mineralogy of Moro do Ferro, Brazil. Chemical Geology, 55, 297-312.
Franco, R.R. and Loewenstein, W. (1948) Zirconium from the region of Poços de Caldas. American Mineralogist, 33, 142-151.
Frondel, C., and Marvin, U.B. (1959) Cerianite, CeO2, from Poços de Caldas, Brazil. American Mineralogist, 44, 882-884.
Hussak, E. and Reitinger, J. (1903) Xenotim, Senait und natürliches Zirkonoxyd aus Brasilien. Zeitschrift für Krystallographie und Mineralogie, 37, 566-574 (in German).
Tolbert, G.E. (1966) The Uraniferous Zirconium Deposits of the Poços de Caldas Plateau, Brazil. United States Geological Survey Bulletin 1185-C, 28 pp. and maps.
Waber, N. (1991) Mineralogy, petrography and geochemistry of the Poços de Caldas analogue study sites, Minas Gerais, Brasil; Morro de Ferro. Universitats Bern, Mineralogisches - Petrographisches Institut, SKB Technical Report, No. 90-12, 110 pp.
Waber, N. (1992) The supergene thorium and rare-earth element deposit at Morro do Ferro, Pocos de Caldas, Minas Gerais, Brazil. Journal of Geochemical Exploration, 45, 113-57.
Wedow, H. (1961) Thorium and rare earths in the Poços de Caldas zirconium district, Brazil. United States Geological Survey Professional Paper 424-D, 214-216.
Wedow, H. (1961) Laterization of allanite in the Morro do Ferro rare-earth and thorium deposit, Poços de Caldas Plateau, Brazil. Economic Geology, 56(7), 1315.
Wedow, H. (1967) The Morro do Ferro thorium and rare earth deposits, Poços de Caldas district, Brazil. United States Geological Survey Professional Paper 1185-D, 34 pp.
Schorscher, H.D. and Shea, M.E. (1992) The regional geology of the Poços de Caldas alkaline complex: mineralogy and geochemistry of selected nepheline syenites and phonolites. Journal of Geochemical Exploration, 45, 25-51.
Bonotto, D.M., Fujimori, K., and Moreira-Nordemann, L.M. (2007) Determination of weathering rate of the Morro do Ferro Th-​REEs deposit, Brazil using U-​isotope method. Applied Radiation and Isotopes, 65, 474-481.


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