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:
Cachoeira Mine, Piauí Valley, Taquaral, Itinga, Minas Gerais, Brazil

Oldest recorded age at locality: 12.8
Youngest recorded age at locality: 5.1

mindat Locality ID: 24987
mindat URL: http://www.mindat.org/loc-24987.html

Tectonic Settings:

Total number of sublocalities beneath "Cachoeira Mine, Piauí Valley, Taquaral, Itinga, Minas Gerais, Brazil": 0
Total number of bottom-level sublocalities: 0

Latitude: 16°46'43"S
Longitude: 41°54'38"W
Decimal Degree (lat, lon): -16.778611111111,-41.910555555556

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.

Clay	Clinozoisite	Columbite	Epidote	Feldspar	Fluorite	Mica	None	Not in a structural group	Pyroxene
Quartz

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 Ca F Fe H K Li Mn Na Nb O P Si Ta

Elements from minerals reported directly at this locality: Al Ca F Fe H K Li Mn Na O P Si Ta

Structural Groups for minerals in this locality:
Clay Clinozoisite Columbite Epidote Feldspar Fluorite Mica None Not in a structural group Pyroxene
Quartz

10 IMA Minerals at location:

Albite ()*	Epidote ()*	Fluorite ()*	Ixiolite ()*	Lithiophosphate ()*
Muscovite ()*	Petalite ()*	Quartz ()*	Spodumene ()*	Tantalite-(Fe) ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Albite ()*	Feldspar	Na(AlSi₃O₈)	12.8	5.1	8803
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	12.8	5.1	8173
Fluorite ()*	Fluorite	CaF₂	12.8	5.1	9617
Ixiolite ()*	Columbite	(Ta_2/3Mn²⁺_1/3)O₂	12.8	5.1	148
Lithiophosphate ()*	None	Li₃(PO₄)	12.8	5.1	7
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	12.8	5.1	17380
Petalite ()*	Not in a structural group	LiAlSi₄O₁₀	12.8	5.1	124
Quartz ()*	Quartz	SiO₂	12.8	5.1	61156
Spodumene ()*	Pyroxene	LiAlSi₂O₆	12.8	5.1	688
Tantalite-(Fe) ()*	Columbite	Fe²⁺Ta₂O₆	12.8	5.1	99

2 Ages assigned to this locality:

	Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Prioritized?	Sample Source	Sample Num	Run Num	Age from other Locality	Dated Mineral	Minerals explicitely stated as having this age	Age applies to these Elements	MinDat Locality ID	Dated Locality (Max Age)	Location as listed in reference	Reference	Reference DOI	Reference ID	Age Notes
	Scott-EPSL241_80-0001	12.8	12.6	12.7±0.1	36Ar-40Ar, 39Ar-40Ar	age of weathering		cryptomelane				Cryptomelane			24987	Cachoeira Mine, Piauí Valley, Taquaral, Itinga, Minas Gerais, Brazil	Cachoeira Mine	de Oliveira and Vasconcelos (2006)	10.1016/j.epsl.2005.09.056	EPSL241_80	P. 87
	Scott-EPSL241_80-0002	5.3	5.1	5.2±0.1	36Ar-40Ar, 39Ar-40Ar	age of weathering		cryptomelane				Cryptomelane			24987	Cachoeira Mine, Piauí Valley, Taquaral, Itinga, Minas Gerais, Brazil	Cachoeira Mine	de Oliveira and Vasconcelos (2006)	10.1016/j.epsl.2005.09.056	EPSL241_80	P. 87

Sample	Source Locality	Reference URL
R100092	Cachoeira Mine, Piauí Valley, Taquaral, Itinga, Minas Gerais, Brazil	https://rruff.info/R100092

All locality data graciously provided by mindat.org

All age data...