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:
Rocha Mineração Mine, Itabira, Minas Gerais, Brazil

Oldest recorded age at locality: 800
Youngest recorded age at locality: 463

mindat Locality ID: 191896
mindat URL: http://www.mindat.org/loc-191896.html

Tectonic Settings:

Total number of sublocalities beneath "Rocha Mineração Mine, Itabira, Minas Gerais, Brazil": 0
Total number of bottom-level sublocalities: 0

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

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.

Beryl	Clay	Mica	None	Not in a structural group	Quartz	Staurolite

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 Be Fe H K O Si

Elements from minerals reported directly at this locality: Al Be Fe H K O Si

Structural Groups for minerals in this locality:
Beryl Clay Mica None Not in a structural group Quartz Staurolite

6 IMA Minerals at location:

Beryl ()*	Kyanite ()*	Muscovite ()*	Quartz ()*	Sillimanite ()*
Staurolite ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	502	494	4286
Kyanite ()*	Not in a structural group	Al₂OSiO₄	502	494	1507
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	502	494	17380
Quartz ()*	Quartz	SiO₂	502	494	61156
Sillimanite ()*	Not in a structural group	Al₂SiO₅	502	494	1516
Staurolite ()*	Staurolite	Fe²⁺₂Al₉Si₄O₂₃(OH)	502	494	978

3 Ages assigned to this locality:

Excel ID	Max Age (Ma)	Min Age (Ma)	Age as listed in reference	Dating Method	Age Interpret	Sample Source	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
Hg-00005	800	600		Structure			Yes		Atheneite	Hg	403	Itabira, Minas Gerais, Brazil		Cabral et al. (2002)	10.1180/0026461026620033	MM66_327
JSAES14_867_0001	491	463	477 ± 14	Rb-Sr	host rock	biotite	Yes				42760	Piteiras Mine, Itabira, Minas Gerais, Brazil	Itabira, Iron Quadrangle	Preinfalk (2002)		JSAES14_867
JSAES16_493_0001	502	494	498 ± 4	K-Ar	host rock	muscovite		Muscovite			191896	Rocha Mineração Mine, Itabira, Minas Gerais, Brazil	Itabira, Iron Quadrangle	Viana (2003)		JSAES16_493

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...