Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.

Locality Name:
Poços De Caldas Alkaline Complex, Minas Gerais, Brazil

Oldest recorded age at locality: 86.3
Youngest recorded age at locality: 60.8

mindat Locality ID: 12032
mindat URL: http://www.mindat.org/loc-12032.html

Tectonic Settings:

Total number of sublocalities beneath "Poços De Caldas Alkaline Complex, Minas Gerais, Brazil": 14
Total number of bottom-level sublocalities: 10

Number of Child Localities: 3
Child Localities:
Andradas
Caldas
Poços De Caldas

Latitude: 21°55'24"S
Longitude: 46°31'11"W
Decimal Degree (lat, lon): -21.923333333333,-46.519722222222

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
	This mineral's age has not yet been recorded.

Alum	Alunite	Amorphous	Amphibole	Analcime	Ancylite	Apatite	Apophyllite	Aragonite	Astrophyllite
Baddeleyite	Baryte	Bastnäsite	Batisite	Brannerite	Burbankite	Calcite	Cancrinite	Cancrinite-sodalite	Catapleiite
Chlorite	Clay	Coronadite	Corundum	Diaspore	Djerfisherite	Eudialyte	Feldspar	Fluorite	Gagarinite
Gaidonnayite	Halotrichite	Kaolinite	Lanthanite	Lepidocrocite	Mica	Molybdenite	Monazite	Natrolite	Neptunite
Nolanite	None	Not in a structural group	Olivine	Palygorskite	Pectolite	Pentlandite	Pyrite	Pyrophyllite	Pyroxene
Quartz	Ramsdellite	Rocksalt	Rutile	Serpentine	Smectite-vermiculite	Sodalite	Sphalerite	Spinel	Titanite
Tridymite	Wollastonite	Wurtzite	Wöhlerite	Zircon

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al Ba C Ca Cd Ce Cl F Fe H K La Li Mg Mn Mo N Na Nb Nd Ni O P Pb REE S Si Sr Th Ti U Y Zn Zr

Elements from minerals reported directly at this locality: Al Ba Ca Cl F Fe H K Mg Mn Mo Na Nb O P REE S Si Ti Zr

Structural Groups for minerals in this locality:
Alum Alunite Amorphous Amphibole Analcime Ancylite Apatite Apophyllite Aragonite Astrophyllite
Baddeleyite Baryte Bastnäsite Batisite Brannerite Burbankite Calcite Cancrinite Cancrinite-sodalite Catapleiite
Chlorite Clay Coronadite Corundum Diaspore Djerfisherite Eudialyte Feldspar Fluorite Gagarinite
Gaidonnayite Halotrichite Kaolinite Lanthanite Lepidocrocite Mica Molybdenite Monazite Natrolite Neptunite
Nolanite None Not in a structural group Olivine Palygorskite Pectolite Pentlandite Pyrite Pyrophyllite Pyroxene
Quartz Ramsdellite Rocksalt Rutile Serpentine Smectite-vermiculite Sodalite Sphalerite Spinel Titanite
Tridymite Wollastonite Wurtzite Wöhlerite Zircon

125 IMA Minerals at location:

Aegirine ()*	Aegirine-augite ()*	Albite ()*	Alunite ()*	Analcime ()*
Anatase ()*	Ancylite-(Ce) ()*	Ancylite-(La) ()*	Ankerite ()*	Arfvedsonite ()*
Astrophyllite ()*	Augite ()*	Baddeleyite ()*	Baryte ()*	Bastnäsite-(Ce) ()*
Batisite ()*	Berthierine ()*	Bílinite ()*	Birnessite ()*	Brannerite ()*
Britholite-(Ce) ()*	Burbankite ()*	Calcioancylite-(Ce) ()*	Calcite ()*	Cancrinite ()*
Catapleiite ()*	Cerianite-(Ce) ()*	Chamosite ()*	Cheralite ()*	Chlorbartonite ()*
Coffinite ()*	Crandallite ()*	Cryptomelane ()*	Eudialyte ()*	Ferrihydrite ()*
Ferrobustamite ()*	Ferrokentbrooksite ()*	Fersmanite ()*	Florencite-(Ce) ()*	Fluorapatite ()*
Fluorapophyllite-(K) ()*	Fluorbritholite-(Ce) ()*	Fluorite ()*	Fluorlamprophyllite ()*	Gaidonnayite ()*
Georgechaoite ()*	Gibbsite ()*	Goethite ()*	Gonnardite ()*	Gorceixite ()*
Goyazite ()*	Greenockite ()*	Hainite-(Y) ()*	Hematite ()*	Hilairite ()*
Ilmenite ()*	Ilsemannite ()*	Jarosite ()*	Jordisite ()*	Kalinite ()*
Kaolinite ()*	Kentbrooksite ()*	Kochite ()*	Kupletskite ()*	Kutnohorite ()*
Lamprophyllite ()*	Lanthanite-(Nd) ()*	Låvenite ()*	Lepidocrocite ()*	Lithiophilite ()*
Lithiophorite ()*	Lorenzenite ()*	Magnetite ()*	Manganoeudialyte ()*	Microcline ()*
Molybdenite ()*	Molybdite ()*	Montmorillonite ()*	Mosandrite-(Ce) ()*	Muscovite ()*
Narsarsukite ()*	Natrolite ()*	Nepheline ()*	Neptunite ()*	Normandite ()*
Nsutite ()*	Orthoclase ()*	Paranatisite ()*	Pectolite ()*	Pentlandite ()*
Phlogopite ()*	Pickeringite ()*	Plumbogummite ()*	Polezhaevaite-(Ce) ()*	Pyrite ()*
Pyrolusite ()*	Pyrophanite ()*	Pyrophyllite ()*	Quartz ()*	Rinkite-(Ce) ()*
Rosenbuschite ()*	Rutile ()*	Sanidine ()*	Siderite ()*	Sodalite ()*
Sphalerite ()*	Spinel ()*	Stronadelphite ()*	Strontianite ()*	Tainiolite ()*
Thorbastnäsite ()*	Thorianite ()*	Thorite ()*	Titanite ()*	Tschermigite ()*
Tuperssuatsiaite ()*	Uraninite ()*	Vermiculite ()*	Villiaumite ()*	Vinogradovite ()*
Vishnevite ()*	Wadeite ()*	Wollastonite ()*	Xenotime-(Y) ()*	Zircon ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Aegirine ()*	Pyroxene	NaFe³⁺Si₂O₆			3	28004,28008,28009	1022
Aegirine-augite ()*	Pyroxene	(Ca,Na)(Fe³⁺,Mg,Fe²⁺)Si₂O₆	86.3	60.8	0		286
Albite ()*	Feldspar	Na(AlSi₃O₈)	86.3	60.8	2	28004,28006	8803
Alunite ()*	None	KAl₃(SO₄)₂(OH)₆	86.3	60.8	2	28000,28006	966
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O			3	28004,28008,28009	1627
Anatase ()*	Not in a structural group	TiO₂	86.3	60.8	2	28000,28006	2162
Ancylite-(Ce) ()*	Ancylite	CeSr(CO₃)₂(OH)·H₂O			2	28004,28009	92
Ancylite-(La) ()*	Ancylite	LaSr(CO₃)₂(OH)·H₂O			1	28004	13
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂			1	28009	3092
Arfvedsonite ()*	Amphibole	NaNa₂(Fe²⁺₄Fe³⁺)Si₈O₂₂(OH)₂	86.3	60.8	0		295
Astrophyllite ()*	Astrophyllite	K₂NaFe²⁺₇Ti₂(Si₄O₁₂)₂O₂(OH)₄F			2	28007,28008	161
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	86.3	60.8	0		2060
Baddeleyite ()*	Baddeleyite	ZrO₂	86.3	60.8	5	28000,28001,28002,28006,28007	238
Baryte ()*	Baryte	Ba(SO₄)	76	76	1	28000	11547
Bastnäsite-(Ce) ()*	Bastnäsite	Ce(CO₃)F	76	76	1	28000	304
Batisite ()*	Batisite	Na₂BaTi₂O₂(Si₂O₆)₂	86.3	60.8	0		11
Berthierine ()*	Clay Serpentine	(Fe²⁺,Fe³⁺,Al)₃(Si,Al)₂O₅(OH)₄			1	28004	59
Bílinite ()*	Halotrichite	Fe²⁺Fe³⁺₂(SO₄)₄·22H₂O	76	76	1	28000	16
Birnessite ()*	None	(Na,Ca,K)_0.6(Mn⁴⁺,Mn³⁺)₂O₄·1.5H₂O	86.3	60.8	1	28006	178
Brannerite ()*	Brannerite	UTi₂O₆	86.3	60.8	2	28000,28006	248
Britholite-(Ce) ()*	Apatite	(Ce,Ca)₅(SiO₄)₃(OH)			1	28004	115
Burbankite ()*	Burbankite	(Na,Ca)₃(Sr,Ba,Ce)₃(CO₃)₅			2	28004,28009	52
Calcioancylite-(Ce) ()*	Ancylite	(Ce,Ca,Sr)(CO₃)(OH,H₂O)			2	28004,28009	46
Calcite ()*	Calcite	Ca(CO₃)	86.3	60.8	2	28004,28006	27770
Cancrinite ()*	Cancrinite	(Na,Ca, )₈(Al₆Si₆)O₂₄(CO₃,SO₄)₂·2H₂O	86.3	60.8	2	28006,28008	232
Catapleiite ()*	Catapleiite	Na₂Zr(Si₃O₉)·2H₂O	86.3	60.8	0		113
Cerianite-(Ce) ()*	Fluorite	CeO₂	86.3	60.8	1	28006	94
Chamosite ()*	Chlorite Clay	(Fe²⁺,Mg,Al,Fe³⁺)₆(Si,Al)₄O₁₀(OH,O)₈			1	28009	577
Cheralite ()*	Monazite	CaTh(PO₄)₂	86.3	60.8	2	28000,28006	50
Chlorbartonite ()*	Djerfisherite	K₆Fe₂₄S₂₆Cl	86.3	60.8	0		7
Coffinite ()*	Zircon	U(SiO₄)·nH₂O	86.3	60.8	2	27999,28006	566
Crandallite ()*	Alunite	CaAl₃(PO₄)(PO₃OH)(OH)₆	86.3	60.8	2	28000,28006	310
Cryptomelane ()*	Coronadite	K(Mn⁴⁺₇Mn³⁺)O₁₆	86.3	60.8	1	28006	599
Eudialyte ()*	Eudialyte	Na₁₅Ca₆Fe₃Zr₃Si(Si₂₅O₇₃)(O,OH,H₂O)₃(Cl,OH)₂			3	28004,28007,28008	182
Ferrihydrite ()*	Nolanite	Fe³⁺₁₀O₁₄(OH)₂	86.3	60.8	1	28006	86
Ferrobustamite ()*	Wollastonite	CaFe²⁺Si₂O₆	86.3	60.8	0		22
Ferrokentbrooksite ()*	Eudialyte	Na₁₅Ca₆Fe²⁺₃Zr₃Nb(Si₂₅O₇₃)(O,OH,H₂O)₃(F,Cl)₂	86.3	60.8	0		15
Fersmanite ()*	None	Ca₄(Na,Ca)₄(Ti,Nb)₄(Si₂O₇)₂O₈F₃			1	28004	11
Florencite-(Ce) ()*	Alunite	CeAl₃(PO₄)₂(OH)₆	86.3	60.8	1	28006	73
Fluorapatite ()*	Apatite	Ca₅(PO₄)₃F	86.3	60.8	0		2740
Fluorapophyllite-(K) ()*	Apophyllite	KCa₄Si₈O₂₀F·8H₂O			1	28004	303
Fluorbritholite-(Ce) ()*	Apatite	(Ce,Ca)₅(SiO₄)₃F			1	28004	19
Fluorite ()*	Fluorite	CaF₂	86.3	60.8	6	28000,28004,28006,28007,28008,28009	9617
Fluorlamprophyllite ()*	None	(SrNa)Ti₂Na₃Ti(Si₂O₇)₂O₂F₂			1	28007	1
Gaidonnayite ()*	Gaidonnayite	Na₂ZrSi₃O₉·2H₂O			1	28009	21
Georgechaoite ()*	Gaidonnayite	KNaZrSi₃O₉·2H₂O	86.3	60.8	0		7
Gibbsite ()*	None	Al(OH)₃	86.3	60.8	2	28000,28006	504
Goethite ()*	Diaspore	FeO(OH)	86.3	60.8	2	28000,28006	7437
Gonnardite ()*	Natrolite	(Na,Ca)₂(Si,Al)₅O₁₀·3H₂O			1	28004	167
Gorceixite ()*	Alunite	BaAl₃(PO₄)(PO₃OH)(OH)₆	86.3	60.8	2	28000,28006	121
Goyazite ()*	Alunite	SrAl₃(PO₄)(PO₃OH)(OH)₆	86.3	60.8	2	28000,28006	173
Greenockite ()*	Wurtzite	CdS	76	76	1	28000	717
Hainite-(Y) ()*	None	(Ca₃Y)Na(NaCa)Ti(Si₂O₇)₂(OF)F₂			2	28004,28009	11
Hematite ()*	Corundum	Fe₂O₃	86.3	60.8	2	28000,28006	14640
Hilairite ()*	None	Na₂ZrSi₃O₉·3H₂O			1	28009	18
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃			1	28009	5433
Ilsemannite ()*	None	Mo₃O₈·nH₂O (?)	76	76	1	28000	123
Jarosite ()*	Alunite	KFe³⁺₃(SO₄)₂(OH)₆	86.3	60.8	2	28000,28006	2228
Jordisite ()*	Amorphous	MoS₂	76	76	1	28000	102
Kalinite ()*	None	KAl(SO₄)₂·11H₂O	76	76	1	28000	54
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	86.3	60.8	2	28000,28006	5591
Kentbrooksite ()*	Eudialyte	(Na,REE)₁₅(Ca,REE)₆Mn₃Zr₃Nb(Si₂₅O₇₃)(O,OH,H₂O)₃(F,Cl)₂			2	28003,28004	19
Kochite ()*	None	Ca₂MnZrNa₃Ti(Si₂O₇)₂(OF)F₂			1	28007	3
Kupletskite ()*	Astrophyllite	K₂NaMn²⁺₇Ti₂(Si₄O₁₂)₂O₂(OH)₄F			1	28004	33
Kutnohorite ()*	None	CaMn²⁺(CO₃)₂			1	28009	234
Lamprophyllite ()*	None	(SrNa)Ti₂Na₃Ti(Si₂O₇)₂O₂(OH)₂			3	28004,28007,28008	63
Lanthanite-(Nd) ()*	Lanthanite	Nd₂(CO₃)₃·8H₂O	86.3	60.8	1	28006	10
Låvenite ()*	Wöhlerite	(Na,Ca)₄(Mn²⁺,Fe²⁺)₂(Zr,Ti,Nb)₂(Si₂O₇)₂(O,F)₄	86.3	60.8	0		58
Lepidocrocite ()*	Lepidocrocite	Fe³⁺O(OH)	86.3	60.8	1	28006	581
Lithiophilite ()*	Olivine	LiMn²⁺(PO₄)	86.3	60.8	1	28006	155
Lithiophorite ()*	None	(Al,Li)(Mn⁴⁺,Mn³⁺)O₂(OH)₂	86.3	60.8	1	28006	210
Lorenzenite ()*	None	Na₂Ti₂O₃(Si₂O₆)	86.3	60.8	0		82
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	86.3	60.8	1	28006	14899
Manganoeudialyte ()*	Eudialyte	Na₁₄Ca₆Mn₃Zr₃[Si₂₆O₇₂(OH)₂](H₂O,Cl,O,OH)₆			2	28004,28008	8
Microcline ()*	Feldspar	K(AlSi₃O₈)	86.3	60.8	2	28006,28009	4924
Molybdenite ()*	Molybdenite	MoS₂	86.3	60.8	0		5800
Molybdite ()*	None	MoO₃	76	76	1	28000	140
Montmorillonite ()*	Clay Smectite-vermiculite	(Na,Ca)_0.3(Al,Mg)₂Si₄O₁₀(OH)₂·nH₂O	86.3	60.8	2	28000,28006	1508
Mosandrite-(Ce) ()*	None	(Ca₃REE)[(H₂O)₂Ca_0.5 _0.5]Ti(Si₂O₇)₂(OH)₂(H₂O)₂	86.3	60.8	0		45
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	76	76	2	28000,28001	17380
Narsarsukite ()*	None	Na₂(Ti,Fe³⁺)Si₄(O,F)₁₁			1	28004	34
Natrolite ()*	Natrolite	Na₂(Si₃Al₂)O₁₀·2H₂O			2	28004,28009	1236
Nepheline ()*	Tridymite	Na₃K(Al₄Si₄O₁₆)	86.3	60.8	6	28000,28004,28006,28007,28008,28009	884
Neptunite ()*	Neptunite	KNa₂LiFe²⁺₂Ti₂Si₈O₂₄			1	28004	49
Normandite ()*	Wöhlerite	Na₂Ca₂(Mn,Fe)₂(Ti,Nb,Zr)₂(Si₂O₇)₂O₂F₂			1	28004	10
Nsutite ()*	Ramsdellite	Mn²⁺_xMn⁴⁺_1-xO_2-2x(OH)_2x	86.3	60.8	2	28000,28006	121
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	86.3	60.8	0		2349
Paranatisite ()*	None	Na₂TiO(SiO₄)			1	28007	4
Pectolite ()*	Pectolite	NaCa₂Si₃O₈(OH)			1	28009	363
Pentlandite ()*	Pentlandite	(Ni,Fe)₉S₈	76	76	1	28000	1512
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	76	76	1	28000	2273
Pickeringite ()*	Halotrichite	MgAl₂(SO₄)₄·22H₂O	76	76	1	28000	265
Plumbogummite ()*	Alunite	PbAl₃(PO₄)(PO₃OH)(OH)₆	86.3	60.8	1	28006	170
Polezhaevaite-(Ce) ()*	Gagarinite	NaSrCeF₆			1	28004	2
Pyrite ()*	Pyrite	FeS₂	86.3	60.8	3	28000,28006,28009	39462
Pyrolusite ()*	Rutile	MnO₂	86.3	60.8	2	28000,28006	3106
Pyrophanite ()*	Corundum	Mn²⁺TiO₃			1	28009	244
Pyrophyllite ()*	Clay Pyrophyllite	Al₂Si₄O₁₀(OH)₂	76	76	1	28000	771
Quartz ()*	Quartz	SiO₂	76	76	2	28000,28009	61156
Rinkite-(Ce) ()*	None	(Ca₃REE)Na(NaCa)Ti(Si₂O₇)₂(OF)F₂			3	28004,28007,28008	53
Rosenbuschite ()*	None	Ca₆Zr₂Na₆ZrTi(Si₂O₇)₄(OF)₂F₄			1	28004	42
Rutile ()*	Rutile	TiO₂	86.3	60.8	2	28000,28006	5614
Sanidine ()*	Feldspar	K(AlSi₃O₈)	76	76	1	28000	598
Siderite ()*	Calcite	Fe(CO₃)	86.3	60.8	2	28000,28006	6417
Sodalite ()*	Cancrinite-sodalite Sodalite	Na₄(Si₃Al₃)O₁₂Cl			2	28008,28009	444
Sphalerite ()*	Sphalerite	ZnS	86.3	60.8	2	28000,28006	21482
Spinel ()*	Spinel	MgAl₂O₄	86.3	60.8	2	28000,28006	1934
Stronadelphite ()*	Apatite	Sr₅(PO₄)₃F			1	28004	4
Strontianite ()*	Aragonite	Sr(CO₃)			1	28009	589
Tainiolite ()*	Mica	KLiMg₂Si₄O₁₀F₂			1	28004	40
Thorbastnäsite ()*	Bastnäsite	ThCa(CO₃)₂F₂·3H₂O	86.3	60.8	1	28006	14
Thorianite ()*	Fluorite	ThO₂	86.3	60.8	1	28006	236
Thorite ()*	Zircon	Th(SiO₄)	86.3	60.8	1	28006	1006
Titanite ()*	Titanite	CaTi(SiO₄)O	86.3	60.8	3	28006,28008,28009	4899
Tschermigite ()*	Alum	(NH₄)Al(SO₄)₂·12H₂O	76	76	1	28000	81
Tuperssuatsiaite ()*	Palygorskite	Na₂(Fe³⁺,Mn²⁺)₃Si₈O₂₀(OH)₂·4H₂O			1	28004	10
Uraninite ()*	Fluorite	UO₂	76	76	3	27999,28000,28005	2718
Vermiculite ()*	Clay Smectite-vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄·8H₂O	76	76	1	28000	652
Villiaumite ()*	Rocksalt	NaF			1	28004	31
Vinogradovite ()*	None	Na₄Ti₄(Si₂O₆)₂[(Si,Al)₄O₁₀]O₄·(H₂O,Na,K)₃	86.3	60.8	0		28
Vishnevite ()*	Cancrinite-sodalite Cancrinite	Na₈(Al₆Si₆)O₂₄(SO₄)·2H₂O	86.3	60.8	0		21
Wadeite ()*	None	K₂ZrSi₃O₉			1	28004	27
Wollastonite ()*	Wollastonite	CaSiO₃	86.3	60.8	1	28006	1247
Xenotime-(Y) ()*	Zircon	Y(PO₄)	76	76	1	28000	939
Zircon ()*	Zircon	Zr(SiO₄)	86.3	60.8	7	27999,28000,28001,28002,28005,28006,28007	5251

3 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Minerals explicitely stated as having this age	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
Giersdorf_00000823	76	76	>76		Minimum age for the uranium of the Osamu Utsumi mine of Brazil	Brannerite, Uraninite	30595	Osamu Utsumi Mine, Campo Do Cercado, Caldas, Poços De Caldas Alkaline Complex, Minas Gerais, Brazil	Osamu Utsumi	Pearcy et al. (1994)	10.1016/0883-2927(94)90030-2	AG9_713	Age is given in comparison to the Nopal deposit due to its similarity as a natural analogue to nuclear waste disposal systems
ree-00157	60.8	60.8	60.8 Ma (K-Ar, lujarite) 86.3 Ma (Rb-Sr, lujavrite-khibinite)	K-Ar			30588	Morro Do Ferro, Poços De Caldas, Poços De Caldas Alkaline Complex, Minas Gerais, Brazil	Pocos de Caldas (Morro do Ferro)	Orris and Grauch (2002)		USGSOFR02_189
ree-00801	86.3	86.3	60.8 Ma (K-Ar, lujarite) 86.3 Ma (Rb-Sr, lujavrite-khibinite)	Rb-Sr			30588	Morro Do Ferro, Poços De Caldas, Poços De Caldas Alkaline Complex, Minas Gerais, Brazil	Pocos de Caldas (Morro do Ferro)	Orris and Grauch (2002)		USGSOFR02_189

Sample	Source Locality	Reference URL
R130421	Poços De Caldas Alkaline Complex, Minas Gerais, Brazil	https://rruff.info/R130421
R110208	Poços De Caldas Alkaline Complex, Minas Gerais, Brazil	https://rruff.info/R110208
R130420	Poços De Caldas Alkaline Complex, Minas Gerais, Brazil	https://rruff.info/R130420
R110212	Poços De Caldas Alkaline Complex, Minas Gerais, Brazil	https://rruff.info/R110212
R070513	Osamu Utsumi Mine, Campo Do Cercado, Caldas, Poços De Caldas Alkaline Complex, Minas Gerais, Brazil	https://rruff.info/R070513
R100082	Poços De Caldas, Poços De Caldas Alkaline Complex, Minas Gerais, Brazil	https://rruff.info/R100082
R130110	Poços De Caldas, Poços De Caldas Alkaline Complex, Minas Gerais, Brazil	https://rruff.info/R130110
R141182	Poços De Caldas, Poços De Caldas Alkaline Complex, Minas Gerais, Brazil	https://rruff.info/R141182
FKM-224	Pedra Balão Outcrops, Poços De Caldas, Poços De Caldas Alkaline Complex, Minas Gerais, Brazil	https://www.rockptx.com/fkm-201-to-fkm-225/#FKM-224
R140540	Prefeitura Quarry, Poços De Caldas, Poços De Caldas Alkaline Complex, Minas Gerais, Brazil	https://rruff.info/R140540

All locality data graciously provided by mindat.org

All age data...