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:
Tapira Complex, Tapira, Minas Gerais, Brazil

Oldest recorded age at locality: 87.6
Youngest recorded age at locality: 66

mindat Locality ID: 25003
mindat URL: http://www.mindat.org/loc-25003.html

Tectonic Settings:

Total number of sublocalities beneath "Tapira Complex, Tapira, Minas Gerais, Brazil": 0
Total number of bottom-level sublocalities: 0

Latitude: 19°51'51"S
Longitude: 46°50'8"W
Decimal Degree (lat, lon): -19.864166666667,-46.835555555556

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	Apatite	Baryte	Calcite	Calzirtite	Clay	Corundum	Mica	None	Not in a structural group
Perovskite	Pyrite	Pyroxene	Quartz	Smectite-vermiculite	Spinel	Titanite

Anatase ()*	Augite ()*	Baryte ()*	Calcite ()*	Calzirtite ()*
Crandallite ()*	Diopside ()*	Dolomite ()*	Hydroxylapatite ()*	Ilmenite ()*
Magnetite ()*	Norsethite ()*	Perovskite ()*	Phlogopite ()*	Pyrite ()*
Quartz ()*	Titanite ()*	Vermiculite ()*

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 Fe H K Mg O P S Si Ti Zr

Elements from minerals reported directly at this locality: Al Ba C Ca Fe H K Mg O P S Si Ti Zr

Structural Groups for minerals in this locality:
Alunite Apatite Baryte Calcite Calzirtite Clay Corundum Mica None Not in a structural group
Perovskite Pyrite Pyroxene Quartz Smectite-vermiculite Spinel Titanite

18 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Anatase ()*	Not in a structural group	TiO₂	87.6	66	2162
Augite ()*	Pyroxene	(Ca,Mg,Fe)₂Si₂O₆	87.6	66	2060
Baryte ()*	Baryte	Ba(SO₄)	87.6	66	11547
Calcite ()*	Calcite	Ca(CO₃)	87.6	66	27770
Calzirtite ()*	Calzirtite	Ca₂Zr₅Ti₂O₁₆	87.6	66	32
Crandallite ()*	Alunite	CaAl₃(PO₄)(PO₃OH)(OH)₆	87.6	66	310
Diopside ()*	Pyroxene	CaMgSi₂O₆	87.6	66	4135
Dolomite ()*	None	CaMg(CO₃)₂	87.6	66	9895
Hydroxylapatite ()*	Apatite	Ca₅(PO₄)₃OH	87.6	66	367
Ilmenite ()*	Corundum	Fe²⁺Ti⁴⁺O₃	87.6	66	5433
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	87.6	66	14899
Norsethite ()*	None	BaMg(CO₃)₂	87.6	66	30
Perovskite ()*	Perovskite	CaTiO₃	87.6	66	495
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	87.6	66	2273
Pyrite ()*	Pyrite	FeS₂	87.6	66	39462
Quartz ()*	Quartz	SiO₂	87.6	66	61156
Titanite ()*	Titanite	CaTi(SiO₄)O	87.6	66	4899
Vermiculite ()*	Clay Smectite-vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄·8H₂O	87.6	66	652

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Jen_0000667	MAGMATIC STYLE: Probably irregular intrusions. ASSOCIATED SILICATE ROCKS: Pyroxenite, dunite, phoscorite, uncompahgrite, syenite, trachyte, bostonite, fenite, silexite.
Jen_0000668	MAGMATIC STYLE: Probably irregular intrusions. ASSOCIATED SILICATE ROCKS: Pyroxenite, dunite, phoscorite, uncompahgrite, syenite, trachyte, bostonite, fenite, silexite.

3 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
Jen_0000667	73	66	69.5±3.5	K-Ar	biotite	25003	Tapira Complex, Tapira, Minas Gerais, Brazil	Tapira	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
Jen_0000668	87.6	69.6	78.6±9.0	fission-track	apatite	25003	Tapira Complex, Tapira, Minas Gerais, Brazil	Tapira	Woolley and Kjarsgaard (2008)	10.4095/225115	GSCOF5796
ree-00153	73	66	69.5 ± 3.5 Ma (K-Ar, bio, bebedourite)	K-Ar	biotite	25003	Tapira Complex, Tapira, Minas Gerais, Brazil	Tapira	Orris and Grauch (2002)		USGSOFR02_189

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...