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:
João Belo Mine, Jacobina, Serra De Jacobina, Bahia, Brazil

Oldest recorded age at locality: 1988
Youngest recorded age at locality: 1903

mindat Locality ID: 210149
mindat URL: http://www.mindat.org/loc-210149.html

Tectonic Settings:

Total number of sublocalities beneath "João Belo Mine, Jacobina, Serra De Jacobina, Bahia, 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.

Andalusite	Clay	Copper	Mica	Nickeline	None	Pyrite	Quartz	Rutile	Spinel
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 Au Cr Fe H K O S Si Ti Zr

Elements from minerals reported directly at this locality: Al Au Cr Fe H K O S Si Ti Zr

Structural Groups for minerals in this locality:
Andalusite Clay Copper Mica Nickeline None Pyrite Quartz Rutile Spinel
Zircon

9 IMA Minerals at location:

Andalusite ()*	Chromite ()*	Gold ()*	Muscovite ()*	Pyrite ()*
Pyrrhotite ()*	Quartz ()*	Rutile ()*	Zircon ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Andalusite ()*	Andalusite	Al₂SiO₅	1988	1903	1310
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	1988	1903	3902
Gold ()*	Copper	Au	1988	1903	30554
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	1988	1903	17380
Pyrite ()*	Pyrite	FeS₂	1988	1903	39462
Pyrrhotite ()*	Nickeline	Fe₇S₈	1988	1903	9056
Quartz ()*	Quartz	SiO₂	1988	1903	61156
Rutile ()*	Rutile	TiO₂	1988	1903	5614
Zircon ()*	Zircon	Zr(SiO₄)	1988	1903	5251

1 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
	DeepDive-Co-0057	1988	1903	1903-1988	Ar-Ar	age of sheared vein in Unit 4 between the Joa˜o Belo and Itapicuru mines					Yes		Phlogopite, Pyrite, Quartz		24818	Jacobina, Serra De Jacobina, Bahia, Brazil	Jacobina	Milesi et al. (2002)	10.1016/S0169-1368(01)00038-5	OGR19_95	age of sheared vein in Unit 4 between the Joa˜o Belo and Itapicuru mines

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...