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:
Barreiro, Araxá, Minas Gerais, Brazil

Oldest recorded age at locality: 97.7
Youngest recorded age at locality: 71.9

mindat Locality ID: 25002
mindat URL: http://www.mindat.org/loc-25002.html

Tectonic Settings:

Total number of sublocalities beneath "Barreiro, Araxá, Minas Gerais, Brazil": 2
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Araxá Complex

Latitude: 19°39'55"S
Longitude: 46°56'12"W
Decimal Degree (lat, lon): -19.665277777778,-46.936666666667

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.

Alunite	Amphibole	Aragonite	Baryte	Burbankite	Calcite	Calzirtite	Carbocernaite	Chalcopyrite	Clay
Corundum	Diaspore	Fluorite	Garnet	Kaolinite	Labuntsovite	Lepidocrocite	Mica	Millerite	Nickeline
None	Perovskite	Pyrite	Pyrochlore	Pyroxene	Quartz	Rocksalt	Rutile	Smectite-vermiculite	Sphalerite
Spinel	Talc	Titanite	Zircon	Zirconolite

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 Bi C Ca Ce Cr Cu F Fe H K La Li Mg Na Nb Ni O P Pb S Si Sr Ti Y Zn Zr

Elements from minerals reported directly at this locality: Al Ba Bi C Ca Ce Cr Cu F Fe H K La Li Mg Na Nb Ni O P Pb S Si Sr Ti Y Zn Zr

Structural Groups for minerals in this locality:
Alunite Amphibole Aragonite Baryte Burbankite Calcite Calzirtite Carbocernaite Chalcopyrite Clay
Corundum Diaspore Fluorite Garnet Kaolinite Labuntsovite Lepidocrocite Mica Millerite Nickeline
None Perovskite Pyrite Pyrochlore Pyroxene Quartz Rocksalt Rutile Smectite-vermiculite Sphalerite
Spinel Talc Titanite Zircon Zirconolite

53 IMA Minerals at location:

Aegirine-augite ()*	Alunite ()*	Andradite ()*	Ankerite ()*	Anthophyllite ()*
Arfvedsonite ()*	Baryte ()*	Barytocalcite ()*	Bismite ()*	Böhmite ()*
Burbankite ()*	Calcite ()*	Calzirtite ()*	Carbocernaite ()*	Celadonite ()*
Chalcopyrite ()*	Chromite ()*	Dolomite ()*	Galena ()*	Gibbsite ()*
Goethite ()*	Gorceixite ()*	Goyazite ()*	Hematite ()*	Huanghoite-(Ce) ()*
Hydroxykenopyrochlore ()*	Ilmenite ()*	Isokite ()*	Kaolinite ()*	Kimzeyite ()*
Magnesio-arfvedsonite ()*	Magnesite ()*	Magnetite ()*	Millerite ()*	Nenadkevichite ()*
Norsethite ()*	Perovskite ()*	Phlogopite ()*	Pyrite ()*	Pyrrhotite ()*
Quartz ()*	Rutile ()*	Siderite ()*	Sphalerite ()*	Spinel ()*
Strontianite ()*	Tainiolite ()*	Talc ()*	Tetraferriphlogopite ()*	Vermiculite ()*
Zircon ()*	Zirconolite ()*	Zirkelite ()*

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-augite ()*	Pyroxene	(Ca,Na)(Fe³⁺,Mg,Fe²⁺)Si₂O₆	97.7	71.9	0		286
Alunite ()*	None	KAl₃(SO₄)₂(OH)₆	97.7	71.9	0		966
Andradite ()*	Garnet	Ca₃Fe³⁺₂(SiO₄)₃	97.7	71.9	0		1534
Ankerite ()*	None	Ca(Fe²⁺,Mg)(CO₃)₂	97.7	71.9	0		3092
Anthophyllite ()*	Amphibole	Mg₂Mg₅Si₈O₂₂(OH)₂	97.7	71.9	0		718
Arfvedsonite ()*	Amphibole	NaNa₂(Fe²⁺₄Fe³⁺)Si₈O₂₂(OH)₂	97.7	71.9	0		295
Baryte ()*	Baryte	Ba(SO₄)	97.7	71.9	0		11547
Barytocalcite ()*	None	BaCa(CO₃)₂	97.7	71.9	0		83
Bismite ()*	None	Bi₂O₃	97.7	71.9	0		214
Böhmite ()*	Lepidocrocite	AlO(OH)	97.7	71.9	0		195
Burbankite ()*	Burbankite	(Na,Ca)₃(Sr,Ba,Ce)₃(CO₃)₅	97.7	71.9	0		52
Calcite ()*	Calcite	Ca(CO₃)	97.7	71.9	0		27770
Calzirtite ()*	Calzirtite	Ca₂Zr₅Ti₂O₁₆	97.7	71.9	0		32
Carbocernaite ()*	Carbocernaite	(Sr,Ce,La)(Ca,Na)(CO₃)₂	97.7	71.9	0		24
Celadonite ()*	Mica Clay	KMgFe³⁺Si₄O₁₀(OH)₂	97.7	71.9	0		309
Chalcopyrite ()*	Chalcopyrite	CuFeS₂	97.7	71.9	0		27198
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	97.7	71.9	0		3902
Dolomite ()*	None	CaMg(CO₃)₂	97.7	71.9	0		9895
Galena ()*	Rocksalt	PbS	97.7	71.9	0		24243
Gibbsite ()*	None	Al(OH)₃	97.7	71.9	0		504
Goethite ()*	Diaspore	FeO(OH)	97.7	71.9	0		7437
Gorceixite ()*	Alunite	BaAl₃(PO₄)(PO₃OH)(OH)₆	97.7	71.9	0		121
Goyazite ()*	Alunite	SrAl₃(PO₄)(PO₃OH)(OH)₆	97.7	71.9	0		173
Hematite ()*	Corundum	Fe₂O₃	97.7	71.9	0		14640
Huanghoite-(Ce) ()*	None	BaCe(CO₃)₂F	97.7	71.9	0		9
Hydroxykenopyrochlore ()*	Pyrochlore	( ,Ce,Ba)₂(Nb,Ti)₂O₆(OH,F)	97.7	71.9	1	27516	2
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	97.7	71.9	0		5433
Isokite ()*	Titanite	CaMg(PO₄)F	97.7	71.9	0		22
Kaolinite ()*	Clay Kaolinite	Al₂Si₂O₅(OH)₄	97.7	71.9	0		5591
Kimzeyite ()*	Garnet	Ca₃Zr₂(SiAl₂)O₁₂	97.7	71.9	0		17
Magnesio-arfvedsonite ()*	Amphibole	NaNa₂(Mg₄Fe³⁺)Si₈O₂₂(OH)₂	97.7	71.9	0		79
Magnesite ()*	Calcite	Mg(CO₃)	97.7	71.9	0		1487
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	97.7	71.9	0		14899
Millerite ()*	Millerite	NiS	97.7	71.9	0		1066
Nenadkevichite ()*	Labuntsovite	(Na, )₈Nb₄(Si₄O₁₂)₂(O,OH)₄·8H₂O	97.7	71.9	0		19
Norsethite ()*	None	BaMg(CO₃)₂	97.7	71.9	0		30
Perovskite ()*	Perovskite	CaTiO₃	97.7	71.9	0		495
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	97.7	71.9	0		2273
Pyrite ()*	Pyrite	FeS₂	97.7	71.9	0		39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	97.7	71.9	0		9056
Quartz ()*	Quartz	SiO₂	97.7	71.9	0		61156
Rutile ()*	Rutile	TiO₂	97.7	71.9	0		5614
Siderite ()*	Calcite	Fe(CO₃)	97.7	71.9	0		6417
Sphalerite ()*	Sphalerite	ZnS	97.7	71.9	0		21482
Spinel ()*	Spinel	MgAl₂O₄	97.7	71.9	0		1934
Strontianite ()*	Aragonite	Sr(CO₃)	97.7	71.9	0		589
Tainiolite ()*	Mica	KLiMg₂Si₄O₁₀F₂	97.7	71.9	0		40
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	97.7	71.9	0		3337
Tetraferriphlogopite ()*	Mica	KMg₃(Si₃Fe³⁺)O₁₀(OH)₂	97.7	71.9	0		27
Vermiculite ()*	Clay Smectite-vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄·8H₂O	97.7	71.9	0		652
Zircon ()*	Zircon	Zr(SiO₄)	97.7	71.9	0		5251
Zirconolite ()*	Zirconolite	(Ca,Y)Zr(Ti,Mg,Al)₂O₇	97.7	71.9	0		140
Zirkelite ()*	Fluorite	(Ti,Ca,Zr)O_2-x	97.7	71.9	0		27

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Jen_0000695	MAGMATIC STYLE: Major intrusions and dykes. ASSOCIATED SILICATE ROCKS: Pyroxenite, glimmerite, lamprophyres, silexite, fenite.
Jen_0000696	MAGMATIC STYLE: Major intrusions and dykes. ASSOCIATED SILICATE ROCKS: Pyroxenite, glimmerite, lamprophyres, silexite, fenite.
Jen_0000697	MAGMATIC STYLE: Major intrusions and dykes. ASSOCIATED SILICATE ROCKS: Pyroxenite, glimmerite, lamprophyres, silexite, fenite.

4 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Sample Source	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID
ree-00143	91.6	82.8	87.2 ± 4.4 Ma (K-Ar, bio, glimmerite)	K-Ar	biotite, glimmerite	25002	Barreiro, Araxá, Minas Gerais, Brazil	Araxa (Barreiro)	Orris and Grauch (2002)		USGSOFR02_189
Jen_0000695	91.6	82.8	87.2±4.4	K-Ar	biotite	288726	Araxá Complex, Barreiro, Araxá, Minas Gerais, Brazil	Araxá	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0000696	86.3	82.5	84.4±1.9	fission-track	apatite	288726	Araxá Complex, Barreiro, Araxá, Minas Gerais, Brazil	Araxá	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0000697	97.7	71.9	84.8±12.9	fission-track	apatite	288726	Araxá Complex, Barreiro, Araxá, Minas Gerais, Brazil	Araxá	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796

All locality data graciously provided by mindat.org

All age data...