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Poços de Caldas, Poços de Caldas plateau, Minas Gerais, Southeast Region, Brazil

StandardDetailedBy ChemistryMineral Photos (35)MapsSearch GoogleMineral Report for Region

(Poços de Caldas, Planalto de Poços de Caldas)

Pocos de Caldas is one of the largest intrusions of the world (some 800 km²) and extends into the states of Sao Paulo and Minas Gerais. The alkaline complex mainly consists of tinguaite/phonolite, and nepheline syenites.
Contains one of the world´s largest baddeleyite deposits, bauxite and uranium mining.

References:
- http://www.koeln.netsurf.de/~w.steffens/pocos.htm
- Ulbrich, M. N. C. (1993). Mineralogy of nepheline syenites from the Pocos de Caldas alkaline massif, SE Brazil: chemistry, X-ray data and microtextures of feldspars. Revista Brasileira de Geociencias, 23(4), 388-399. Download at tp://sbg.igc.usp.br/rgb/vol23_down/2304/2304388.pdf

Atencio, D., Coutinho, J. M. V., Ulbrich, M. N. C., Vlach, S. R. F., Rastsvetaeva, R. K., & Pushcharovsky, D. Y. (1999). Hainite from Poços de Caldas, Minas Gerais, Brazil. The Canadian Mineralogist, 37, 91-98. Atencio, D. , Coutinho, J.M.V. and Vlach, S.R.F. (2005). "Tuperssuatsiaite from the Bortolan quarry, Poços de Caldas, Minas Gerais, Brazil." The Mineralogical Record, 36(3),pp:275-280.
ATENCIO, D., COUTINHO, J.M.C., ULBRICH, M.N.C., VLACH, S.R.F., RASTVETAEVA, R.K.and PUSHCHAROVSKY, D.Yu. (1999) Hainite from Poços de Caldas, Minas Gerais, Brazil. Canadian Mineralogist, 37, 91-98.
BAPTISTA, A. (1976) Lamprofilita no lujaurito de Pedra Balão, Poços de Caldas, Minas Gerais.
[Lamprophyllite in the lujavrite of Pedra Balão, Poços de Caldas, Minas Gerais.] Annaes da Academia Brasileira de Ciêncas, t. 48, n. 3, 193-196. (in Portugese)
BAPTISTA, A. (1980) Estudio radiocristografico da Eudialita de Pedra Balao, Poços de Caldas, Estado de Minas Gerais. [Radiocrystallographic study of eudialyte from Pedra Balao, Poços de Caldas, Minas Gerais.] Annaes da Academia Brasileira de Ciêncas, 52, (2), 243-250. (in Portugese)
ELLERT, R. (1959) Contribuição à geologia do maciço alcalino de Poços de Caldas. [Contribution to
the geology of the Poços de Caldas alkaline massif]. Universidade de Sao Paulo. Faculdade de Filosifia, Ciêncas e Letras, Boletim No.23, Mineralogia, 5-63. (in Portuguese)
ELLERT, R. (1966) The Poços de Caldas alkaline massif. from: Guidebook 1966 International Field Institute, 1-6.
ELLERT, R. (1969) Nota sobre a ocorrencia de villiaumita do maciço de Poços de Caldas, M.G. [The occurrence of villiaumite in the Poços de Caldas massif, M.G.] Mineração e Metalurgia, 49, No. 294, 234. (in Portuguese)
ELLERT, R. (1976) The Poços de Caldas alkaline massif. from: Proceedings of the first International
Symposium on Carbonatites, published by: Ministr. Minas e Energia, Brasilia, 305-307.
FRONDEL, C., and MARVIN, U.B. (1959) Cerianite, CeO2, from Poços de Caldas, Brazil. American
Mineralogist, 44, 882-884.
FUJIMORI, K. (1982) Silicato do terras raras (Ce,La,Nd,Ca,Th)SiO4 e cheralita(Th,Ca,Ce,La)(PSiO4).
Annaes XXXII Congress Sociedade Brasileira de Geologia, Boletim 2, 669-671. (in Portuguese)
MATIOLI, P.A., ATENCIO, D., and COUTINHO, J.M.V. (1994) Barium-free burbankite from Poços
de Caldas, Minas Gerais, Brazil. Abstracts with Program, 16th General meeting of the International Mineralogical Association, Pisa, Italy, 268.
MATIOLI, P.A., ATENCIO, D., and TSUGAWA, J.K. (1998) Recent contributions to the mineralogy of Poços de Caldas alkaline massif, Minas Gerais, Brazil. Abstracts with Program, 17th General meeting of the International Mineralogical Association, Toronto, Canada, A111.
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.
SCHUMANN, A. (1993) Changes in mineralogy and geochemistry of a nepheline syenite with increasing bauxitization. Chemical Geology, 107, (3-4) 327-331.
SHEA, M.E. (1992) Isotopic geochemical characterization of selected nepheline syenites and phonolites from the Poços de Caldas alkaline complex, Minas Gerais, Brazil. Journal of Geochemical Exploration, 45, 25-51.
ULBRICH, M.N.C. (1986) K-feldspars from Poços de Caldas nepheline syenites, southern Brazil: chemical, optical and XRD studies. Annaes da Academia Brasileira de Ciêncas, 58, (1). 166.
ULBRICH, M.N.C. (1993) Mineralogy of nepheline syenites from the Poços de Caldas alkaline massif SE Brazil: chemistry, X-ray data and microtextures of feldspars Revista Brasileira de Geociencias, 23, 388-399.
 ULBRICH, H.H.G.J. and GOMES, C.B. (1981) Alkaline Rocks from Continental Brazil. Earth Science Reviews, 17, 135-154.
ULBRICH, M.N.C., GOMES, C.B., & ULBRICH, H. (1980) Zonalidade extrema nos piroxenios do nefelina sienito hibrido de Pocos de Caldas - MG. [Extreme zonality in proxenes of the hybrid nepheline syenite of Pocos de Caldas, Minas Gerais.] XXXI congresso brasileiro de geologia; Boletim no. 2, Resumos. XXXI Brazilian geological congress; Bulletin No. 2, Abstracts. 420 (in Portuguese)
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, 110p.
WABER, N. (1992) The supergene thorium and rare-earth deposit at Morro do Ferro, Poços de Caldas, Minas Gerais, Brazil. Journal of Geochemical Exploration, 45, 113-157.
WABER, N., SCHORSCHER, H.D., and PETERS, T. (1992) Hydrothermal and supergene uranium mineralization at the Osamu Utsumi mine, Poços de Caldas, Minas Gerais, Brazil. Journal of Geochemical Exploration, 45, 53-112.
WEDOW, H. (1961) Thorium and rare earths in the Poços de Caldas zirconium district, Brazil. U.S. 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, No. 7, 1315.






 Map Reference: 21°48'S , 46°33'W

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.


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


Mineral List:
  		•  Aegirine
    NaFe
    3+
     
    		[Si
     
    2
    		O
     
    6
    		]
    Reference: [Min Rec 36:3 pp275-280]
  		•  Aegirine-augite
    (Na,Ca)(Fe
    3+
     
    		,Fe
    2+
     
    		,Mg,Al)Si
     
    2
    		O
     
    6
    Reference: [Revista Brasileira de Geociências 23(4):388-399]
  		•  Albite
    Na[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [No reference listed]
  		•  'Allanite'
    Reference: [Baretto & Fujimori (1986)]
  		•  Alunite
    KAl
     
    3
    		[(OH)
     
    3
    		|SO
     
    4
    		]
     
    2
    Reference: [Waber (1991) ]
  		•  Analcime
    Na
     
    2
    		[Al
     
    2
    		Si
     
    4
    		O
     
    12
    		] · 2H
     
    2
    		O
    Reference: [Min Rec 36:3 pp275-280]
  		•  Anatase
    TiO
     
    2
    Reference: [Baretto & Fujimori (1986)]
  		•  Ancylite-(Ce)
    SrCe[OH|(CO
     
    3
    		)
     
    2
    		] · H
     
    2
    		O
    Reference: [Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe]
  		•  Ankerite
    Ca(Fe
    2+
     
    		 ,Mg,Mn
    2+
     
    		)(CO
     
    3
    		)
     
    2
    Reference: [Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe]
  		•  'Apatite'
    Reference: [Revista Brasileira de Geociências 23(4):388-399]
  		•  Apophyllite-(KF)
    KCa
     
    4
    		[(F,OH)|Si
     
    8
    		O
     
    20
    		] · 8H
     
    2
    		O
    Reference: [Min Rec 36:3 pp275-280]
  		•  Arfvedsonite
    [Na][Na
     
    2
    		][Fe
    2+
    4
    		Fe
    3+
     
    		][(OH)
     
    2
    		|Si
     
    8
    		O
     
    22
    		]
    Reference: [No reference listed]
  		•  Astrophyllite
    (K,Na)
     
    3
    		(Fe,Mn)
     
    7
    		Ti
     
    2
    		Si
     
    8
    		O
     
    24
    		(O,OH)
     
    7
    Reference: [No reference listed]
  		•  Augite
    var: Soda-Augite
    Reference: [Revista Brasileira de Geociências 23(4):388-399]
  		•  Baddeleyite
    ZrO
     
    2
    Reference: [Wedow (1967)]
    Site Photo
    Poços de Caldas, Poços de Caldas plateau, Minas Gerais, Southeast Region, Brazil
    © Christopher O'Neill
  		•  Baddeleyite
    var: Caldasite
    Reference: [Derby, in Lee (1919), American Journal of Science: 47: 126.]
    Site Photo
    Poços de Caldas, Poços de Caldas plateau, Minas Gerais, Southeast Region, Brazil
    © Pavel M. Kartashov
  		•  'Bastnäsite'
    Reference: [Baretto & Fujimori (1986)]
  		•  Bastnäsite-(Ce)
    (Ce,La)[F|CO
     
    3
    		]
    Reference: [No reference listed]
  		•  'Bauxite'
    Reference: [www.mineralogicalassociation.ca/doc/abstracts/cm3_Vol37_Jun99.pdf.]
  		•  Berthierine
    (Fe,Fe,Mg)
     
    2-3
    		(Si,Al)
     
    2
    		O
     
    5
    		(OH)
     
    4
    Reference: [Atencio et al. (1999) Can. Min. 37, 91-98.]
  		•  Biotite
    Reference: [Min Rec 36:3 pp275-280]
  		•  Birnessite
    (Na,Ca)
     
    0.5
    		(Mn
    4+
     
    		,Mn
    3+
     
    		)
     
    2
    		O
     
    4
    		 · 1.5H
     
    2
    		O
    Reference: [Waber (1991) ]
  		•  Brannerite
    (U
    4+
     
    		,Ca)(Ti,Fe
    3+
     
    		)
     
    2
    		O
     
    6
    Reference: [Waber et al. (1992) Jour. Geochemical Explor. 45, 53-112]
  		•  Burbankite
    (Na,Ca)
     
    3
    		(Sr,Ba,Ce)
     
    3
    		(CO
     
    3
    		)
     
    5
    Reference: [No reference listed]
    Site Photo
    Poços de Caldas, Poços de Caldas plateau, Minas Gerais, Southeast Region, Brazil
    © Leon Hupperichs
  		•  Calcioancylite-(Ce)
    (Ca,Sr)Ce(CO
     
    3
    		)
     
    2
    		OH·H
     
    2
    		O
    Reference: [Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe]
  		•  Calcite
    CaCO
     
    3
    Reference: [Waber (1991) ]
  		•  Cancrinite
    Na
     
    6
    		Ca
     
    2
    		[(CO
     
    3
    		)
     
    2
    		|Al
     
    6
    		Si
     
    6
    		O
     
    24
    		] · 2H
     
    2
    		O
    Reference: [No reference listed]
  		•  Catapleiite
    Na
     
    2
    		Zr[Si
     
    3
    		O
     
    9
    		]·2H
     
    2
    		O
    Reference: [No reference listed]
  		•  Cerianite-(Ce)
    (Ce
    4+
     
    		,Th)O
     
    2
    Reference: [Baretto & Fujimori (1986)]
    Site Photo
    Poços de Caldas, Poços de Caldas plateau, Minas Gerais, Southeast Region, Brazil
    © luigi chiappino
  		•  Chamosite
    (Fe
    2+
     
    		,Mg)
     
    5
    		Al[(OH)
     
    8
    		|AlSi
     
    3
    		O
     
    10
    		]
    Reference: [Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe]
  		•  Cheralite
    (Ca,Ce)(Th,Ce)[PO
     
    4
    		]
     
    2
    Reference: [Baretto & Fujimori (1986)]
  		•  'Chlorite Group'
    Reference: [Revista Brasileira de Geociências 23(4):388-399]
  		•  Coffinite
    (U,Th)[(OH)
     
    4x
    		|(SiO
     
    4
    		)
     
    1-x
    		]
    Reference: [Baretto & Fujimori (1986)]
  		•  Crandallite
    CaAl
     
    3
    		[(OH)
     
    5
    		|(PO
     
    4
    		)
     
    2
    		] · H
     
    2
    		O
    Reference: [Waber (1991) ]
  		•  Cryptomelane
    K(Mn
    4+
     
    		,Mn
    2+
     
    		)
     
    8
    		O
     
    16
    Reference: [Waber (1991) ]
  		•  Eudialyte
    Na
     
    15
    		Ca
     
    6
    		(Fe
    2+
     
    		,Mn
    2+
     
    		)
     
    3
    		Zr
     
    3
    		[Si
     
    25
    		O
     
    73
    		](O,OH,H
     
    2
    		O)
     
    3
    		(OH,Cl)
     
    2
    Reference: [Min Rec 36:3 pp275-280]
    Site Photo
    Pedra Balão, Poços de Caldas, Poços de Caldas plateau, Minas Gerais, Southeast Region, Brazil
    © Brhounds
  		•  Ferrihydrite
    Fe
     
    5
    		O
     
    3
    		(OH)
     
    9
    Reference: [Waber (1991) ]
  		•  Ferrokentbrooksite
    Na
     
    15
    		Ca
     
    6
    		(Fe,Mn)
     
    3
    		Zr
     
    3
    		NbSi
     
    25
    		O
     
    73
    		(O,OH,H
     
    2
    		O)
     
    3
    		Cl
     
    2
    Reference: [Atencio et al.(2000) 4th international conference mineralogy and museuns, program and abstracts volume, p23.]
  		•  Fersmanite
    (Ca,Na)
     
    4
    		(Ti,Nb)
     
    2
    		Si
     
    2
    		O
     
    11
    		(F,OH)
     
    2
    Reference: [Atencio et al. (1999) Can. Min. 37, 91-98.]
  		•  Florencite-(Ce)
    CeAl
     
    3
    		[(OH)
     
    6
    		|(PO
     
    4
    		)
     
    2
    		]
    Reference: [Waber (1991) ]
  		•  Fluorite
    CaF
     
    2
    Reference: [Baretto & Fujimori (1986) & others]
  		•  Gaidonnayite
    Na
     
    2
    		Zr[Si
     
    3
    		O
     
    9
    		]·2H
     
    2
    		O
    Reference: [No reference listed]
    Site Photo
    Poços de Caldas, Poços de Caldas plateau, Minas Gerais, Southeast Region, Brazil
    © Bruno Gioia
  		•  Georgechaoite
    NaKZr[Si
     
    3
    		O
     
    9
    		]·2H
     
    2
    		O
    Reference: []
    Site Photo
    Poços de Caldas, Poços de Caldas plateau, Minas Gerais, Southeast Region, Brazil
    © Paul Bongaerts
  		•  Gibbsite
    Al(OH)
     
    3
    Reference: [www.mineralogicalassociation.ca/doc/abstracts/cm3_Vol37_Jun99.pdf.]
  		•  Goethite
    α-Fe
    3+
     
    		O(OH)
    Reference: [www.mineralogicalassociation.ca/doc/abstracts/cm3_Vol37_Jun99.pdf.]
  		•  Gonnardite
    Na
     
    2
    		Ca[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		]
     
    2
    		 · 7H
     
    2
    		O
    Reference: [Atencio et al. (1999) Can. Min. 37, 91-98.]
  		•  Gorceixite
    BaAl
     
    3
    		[(OH)
     
    5
    		|(PO
     
    4
    		)
     
    2
    		] · H
     
    2
    		O
    Reference: [Waber (1991) ]
  		•  Goyazite
    SrAl
     
    3
    		[(OH)
     
    5
    		|(PO
     
    4
    		)
     
    2
    		] · H
     
    2
    		O
    Reference: [Waber (1991) ]
  		•  Hainite
    Na
     
    4
    		Ca
     
    8
    		(Ti,Zr,Mn)
     
    3
    		[F
     
    4
    		|(Si
     
    2
    		O
     
    7
    		)
     
    2
    		]
     
    2
    Reference: [Atencio, D., Coutinho, J. M. V., Ulbrich, M. N. C., Vlach, S. R. F., Rastsvetaeva, R. K., & Pushcharovsky, D. Y. (1999). Hainite from Poços de Caldas, Minas Gerais, Brazil. The Canadian Mineralogist, 37, 91-98. ]
    Site Photo
    Poços de Caldas, Poços de Caldas plateau, Minas Gerais, Southeast Region, Brazil
    © Bruno Gioia
  		•  Hematite
    Fe
     
    2
    		O
     
    3
    Reference: [USGS Bull 1185-D]
  		•  Hilairite
    Na
     
    2
    		Zr[SiO
     
    3
    		]
     
    3
    		·3H
     
    2
    		O
    Reference: [Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe]
  		•  Illite
    K
     
    0.65
    		A
     
    2.0
    		 [][Al
     
    0.65
    		Si,
     
    3.35
    		O
     
    10
    		](OH)
     
    2
    Reference: [Revista Brasileira de Geociências 23(4):388-399]
    Site Photo
    Poços de Caldas, Poços de Caldas plateau, Minas Gerais, Southeast Region, Brazil
    © Martins da Pedra
  		•  Ilmenite
    Fe
    2+
     
    		TiO
     
    3
    Reference: [Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe]
  		•  IMA2009-039 (TL)
    Na
     
    14
    		Ca
     
    6
    		Mn
     
    3
    		Zr
     
    3
    		[Si
     
    26
    		O
     
    72
    		(OH)
     
    2
    		](H
     
    2
    		O,Cl,O,OH)
     
    6
    Type Locality: Poços de Caldas, Poços de Caldas plateau, Minas Gerais, Southeast Region, Brazil
    Reference: [IMA Approvals - August 2009]
  		•  Jarosite
    KFe
    3+
     
     
    3
    		[(OH)
     
    3
    		|SO
     
    4
    		]
     
    2
    Reference: [Waber (1991) ]
  		•  Kaolinite
    Al
     
    2
    		Si
     
    2
    		O
     
    5
    		(OH)
     
    4
    Reference: [Baretto & Fujimori (1986; Waber (1991)]
  		•  Kentbrooksite
    (Na,REE)
     
    15
    		(Ca,REE)
     
    6
    		(Mn
    2+
     
    		,Fe
    2+
     
    		)
     
    3
    		Zr
     
    3
    		Nb[Si
     
    25
    		O
     
    74
    		]F
     
    2
    		·2H
     
    2
    		O
    Reference: [Atencio et al.(2000) 4th international conference mineralogy and museuns, program and abstracts volume, p23.]
  		•  'K Feldspar'
    Reference: [Min Rec 36:3 pp275-280]
  		•  Kupletskite
    (K,Na)
     
    3
    		(Mn,Fe)
     
    7
    		Ti
     
    2
    		Si
     
    8
    		O
     
    26
    		(OH)
     
    4
    		F
    Reference: [Atencio et al. (1999) Can. Min. 37, 91-98.]
  		•  Kutnohorite
    Ca(Mn,Mg,Fe)(CO
     
    3
    		)
     
    2
    Reference: [Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe]
  		•  Lamprophyllite
    (Sr,K,Ba)
     
    2
    		(Na,Ti,Mn
    2+
     
    		,Fe
    3+
     
    		)
     
    4
    		Ti
     
    2
    		[O|(O,OH,F)|Si
     
    2
    		O
     
    7
    		]
     
    2
    Reference: [No reference listed]
  		•  Lanthanite-(Nd)
    (Nd,La)
     
    2
    		[CO
     
    3
    		]
     
    3
    		 · 8H
     
    2
    		O
    Reference: [Waber (1991) ]
  		•  Låvenite
    (Na,Ca)
     
    2
    		(Mn
    2+
     
    		,Fe
    2+
     
    		)(Zr,Ti)[(O,OH,F)
     
    2
    		|Si
     
    2
    		O
     
    7
    		]
    Reference: [Atencio, D., Coutinho, J. M. V., Ulbrich, M. N. C., Vlach, S. R. F., Rastsvetaeva, R. K., & Pushcharovsky, D. Y. (1999). Hainite from Poços de Caldas, Minas Gerais, Brazil. The Canadian Mineralogist, 37, 91-98. ]
  		•  Lepidocrocite
    γ-Fe
    3+
     
    		O(OH)
    Reference: [Waber (1991) ]
  		•  Lithiophilite
    LiMn
    2+
     
    		[PO
     
    4
    		]
    Reference: [Waber (1991) ]
  		•  Lithiophorite
    (Al,Li)MnO
     
    2
    		(OH)
     
    2
    Reference: [Waber (1991) ]
  		•  Magnetite
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
    Reference: [USGS Bull 1185-D]
  		•  Microcline
    K[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [No reference listed]
  		•  Microlite
    (Ca,Na)
     
    2
    		Ta
     
    2
    		O
     
    6
    		(O,OH,F)
    Reference: [Baretto & Fujimori (1986)]
  		•  Molybdenite
    MoS
     
    2
    Reference: [No reference listed]
  		•  'Monazite'
    Reference: [Baretto & Fujimori (1986)]
  		•  Montmorillonite
    (Na,Ca)
     
    0.33
    		(Al,Mg)
     
    2
    		Si
     
    4
    		O
     
    10
    		(OH)
     
    2
    		·nH
     
    2
    		O
    Reference: [Waber (1991) ]
  		•  Mosandrite
    Ti(☐,Ca,Na)
     
    3
    		Ca
     
    4
    		(Si
     
    2
    		O
     
    7
    		)
     
    2
    		[H
     
    2
    		,OH,F]
     
    4
    		· ~1H
     
    2
    		O
    Reference: [No reference listed]
  		•  Natrolite
    Na
     
    2
    		[Al
     
    2
    		Si
     
    3
    		O
     
    10
    		] · 2H
     
    2
    		O
    Reference: [Min Rec 36:3 pp275-280]
  		•  Nepheline
    (Na,K)[AlSiO
     
    4
    		]
    Reference: [Baretto & Fujimori (1986) & others]
  		•  Neptunite
    Na
     
    2
    		KLi(Fe
    2+
     
    		,Mn
    2+
     
    		)
     
    2
    		Ti
     
    2
    		[Si
     
    8
    		O
     
    24
    		]
    Reference: [Atencio et al. (1999) Can. Min. 37, 91-98.]
  		•  Normandite
    NaCa(Mn,Fe)(Ti,Nb,Zr)[(O,F)
     
    2
    		|Si
     
    2
    		O
     
    7
    		]
    Reference: [Atencio et al. (1999) Can. Min. 37, 91-98.]
  		•  Nsutite
    (Mn
    4+
     
    		,Mn
    2+
     
    		)(O,OH)
     
    2
    Reference: [Waber (1991) ]
  		•  Pectolite
    NaCa
     
    2
    		[HSi
     
    3
    		O
     
    9
    		]
    Reference: [Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe]
  		•  Plumbogummite
    PbAl
     
    3
    		[(OH)
     
    5
    		|(PO
     
    4
    		)
     
    2
    		] · H
     
    2
    		O
    Reference: [Waber (1991) ]
  		•  Pyrite
    FeS
     
    2
    Reference: [Waber (1991) and others]
  		•  Pyrochlore
    (Ca,Na)
     
    2
    		Nb
     
    2
    		O
     
    6
    		(OH,F)
    Reference: [Waber (1991) ]
  		•  Pyrolusite
    MnO
     
    2
    Reference: [Waber (1991) ]
  		•  Pyrophanite
    Mn
    2+
     
    		TiO
     
    3
    Reference: [Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe]
  		•  Quartz
    SiO
     
    2
    Reference: [Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe]
  		•  Rinkite
    Ti(Na,Ca)
     
    3
    		(Ca,Ce)
     
    4
    		(Si
     
    2
    		O
     
    7
    		)
     
    2
    		OF
     
    3
    Reference: [No reference listed]
  		•  Rosenbuschite
    (Ca,Na)
     
    3
    		(Zr,Ti)[O|F|Si
     
    2
    		O
     
    7
    		]
    Reference: [No reference listed]
    Site Photo
    Bortolan quarry, Poços de Caldas, Poços de Caldas plateau, Minas Gerais, Southeast Region, Brazil
    © OT. Ljostad
  		•  Rutile
    TiO
     
    2
    Reference: [Baretto & Fujimori (1986)]
  		•  Siderite
    FeCO
     
    3
    Reference: [Waber (1991) ]
  		•  'Smectite Group'
    A
     
    0.3
    		D
     
    2-3
    		[T
     
    4
    		O
     
    10
    		]Z
     
    2
    		·nH
     
    2
    		O
    Reference: [Waber (1991) ]
  		•  Sodalite
    Na
     
    8
    		[Cl
     
    2
    		|Al
     
    6
    		Si
     
    6
    		O
     
    24
    		]
    Reference: [Revista Brasileira de Geociências 23(4):388-399]
    Site Photo
    Poços de Caldas, Poços de Caldas plateau, Minas Gerais, Southeast Region, Brazil
    © Martins da Pedra
  		•  Sphalerite
    (Zn,Fe
    2+
     
    		)S
    Reference: [Waber (1991) ]
  		•  Spinel
    MgAl
     
    2
    		O
     
    4
    Reference: [Waber (1991) ]
  		•  Strontianite
    SrCO
     
    3
    Reference: [Horváth, Menezes, Toft ollections - confirmed by XRD & microprobe]
  		•  Tainiolite
    KLiMg
     
    2
    		[F
     
    2
    		|Si
     
    4
    		O
     
    10
    		]
    Reference: [Atencio et al. (1999) Can. Min. 37, 91-98.]
  		•  Thorbastnäsite
    Th(Ca,Ce)(CO
     
    3
    		)
     
    2
    		F
     
    2
    		·3H
     
    2
    		O
    Reference: [Baretto & Fujimori (1986)]
  		•  Thorianite
    ThO
     
    2
    Reference: [Baretto & Fujimori (1986)]
  		•  Thorite
    (Th,U)[SiO
     
    4
    		]
    Reference: [Waber (1991) ]
  		•  Thorogummite
    (Th,U)[(OH)
     
    4x
    		|(SiO
     
    4
    		)
     
    1-x
    		]
    Reference: [Baretto & Fujimori (1986)]
  		•  Titanite
    CaTi[O|SiO
     
    4
    		]
    Reference: [No reference listed]
  		•  Tuperssuatsiaite
    Na
     
    2
    		Fe
     
    3
    		Si
     
    8
    		O
     
    20
    		(OH)
     
    2
    		·4H
     
    2
    		O
    Reference: [Atencio, D. , Coutinho, J.M.V. and Vlach, S.R.F. (2005). "Tuperssuatsiaite from the Bortolan quarry, Poços de Caldas, Minas Gerais, Brazil." The Mineralogical Record, 36(3),pp:275-280.]
    Site Photo
    Bortolan quarry, Poços de Caldas, Poços de Caldas plateau, Minas Gerais, Southeast Region, Brazil
     
  		•  Villiaumite
    NaF
    Reference: [Min Rec 36:3 pp275-280]
    Site Photo
    Bortolan quarry, Poços de Caldas, Poços de Caldas plateau, Minas Gerais, Southeast Region, Brazil
    © Rob Lavinsky
  		•  Wadeite
    K
     
    2
    		Zr[Si
     
    3
    		O
     
    9
    		]
    Reference: [Atencio et al. (1999) Can. Min. 37, 91-98.]
  		•  Wollastonite
    Ca[SiO
     
    3
    		]
    Reference: [Waber (1991) ]
  		•  Zircon
    Zr[SiO
     
    4
    		]
    Reference: [Baretto & Fujimori (1986)]
    Site Photo
    Poços de Caldas, Poços de Caldas plateau, Minas Gerais, Southeast Region, Brazil
    © Rob Lavinsky
  		• Zircon
    var: Orvillite
    near 9ZrO
     
    2
    		·6SiO
     
    2
    		·5H
     
    2
    		O
    Reference: []


    106 entries listed. 92 valid minerals. 1 type locality (valid mineral).

    Localities in this Region:
    Brazil
     
    • Southeast Region
      • Minas Gerais
        • Poços de Caldas plateau
          • Poços de Caldas

    The above list 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!
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    Copyright © Jolyon Ralph and Ida Chau 1993-2009. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them.Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. If you would like to add information to improve the quality of our database, then click here to register. Current server date and time: 28th Nov 2009 05:16:29