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:
Ponte Da Raiz Mine, Santa Maria De Itabira, Minas Gerais, Brazil

Oldest recorded age at locality: 630
Youngest recorded age at locality: 490

mindat Locality ID: 42815
mindat URL: http://www.mindat.org/loc-42815.html

Tectonic Settings:

Total number of sublocalities beneath "Ponte Da Raiz Mine, Santa Maria De Itabira, Minas Gerais, Brazil": 0
Total number of bottom-level sublocalities: 0

Latitude: 19°24'4"S
Longitude: 43°5'18"W
Decimal Degree (lat, lon): -19.401111111111,-43.088333333333

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	Topaz

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 F H K O Si

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

Structural Groups for minerals in this locality:
Beryl Clay Mica None Topaz

3 IMA Minerals at location:

Beryl ()*	Muscovite ()*	Topaz ()*

Mineral name	Structural Groups	IMA Formula	Max Age (Ma)	Min Age (Ma)	# of localities containing mineral
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	630	490	4286
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	630	490	17380
Topaz ()*	Topaz	Al₂SiO₄F₂	630	490	1476

Locality Notes from all Ages at Locality:

Age ID	Locality Notes
Michelle_842	Three different pegmatite bodies, representative of the Santa Maria de Itabira, are situated at the southeastern side of São Francisco Craton and belong to the Eastern Pegmatite Province (PPO). They are related to a magmatism of Brasiliano age. They are being exploited for beryl and gems such as aquamarine, heliodor, colorless topaz and amazonite.

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
	Michelle_842	630	490	Brasiliano Cycle		Age of pegmatites					Yes				43692	Santa Maria De Itabira, Minas Gerais, Brazil	Santa Maria De Itabira	Marciano et al. (1994)	10.18285/geonomos.v2i2.225	RG2_41	Age of pegmatites

Sample	Source Locality	Reference URL
R070365	Ponte Da Raiz Mine, Santa Maria De Itabira, Minas Gerais, Brazil	https://rruff.info/R070365

All locality data graciously provided by mindat.org

All age data...