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:
Alter Do Chão, Portalegre, Portugal

mindat Locality ID: 249678
mindat URL: http://www.mindat.org/loc-249678.html

Tectonic Settings:

Total number of sublocalities beneath "Alter Do Chão, Portalegre, Portugal": 3
Total number of bottom-level sublocalities: 2

Number of Child Localities: 1
Child Localities:
Alter Do Chão

Latitude: 39°11'6"N
Longitude: 7°37'48"W
Decimal Degree (lat, lon): 39.185,-7.63

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.

Amphibole	Calcite	Clinozoisite	Epidote	Feldspar	Fluorite	None	Pyrite	Pyroxene	Quartz
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 C Ca F Fe H Na O S Si Zr

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amphibole Calcite Clinozoisite Epidote Feldspar Fluorite None Pyrite Pyroxene Quartz
Zircon

9 IMA Minerals at location:

Aegirine ()*	Albite ()*	Calcite ()*	Epidote ()*	Fluorite ()*
Pyrite ()*	Quartz ()*	Riebeckite ()*	Zircon ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Aegirine ()*	Pyroxene	NaFe³⁺Si₂O₆	1	99811	1022
Albite ()*	Feldspar	Na(AlSi₃O₈)	1	99811	8803
Calcite ()*	Calcite	Ca(CO₃)	1	99812	27770
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	1	99812	8173
Fluorite ()*	Fluorite	CaF₂	1	99811	9617
Pyrite ()*	Pyrite	FeS₂	1	99812	39462
Quartz ()*	Quartz	SiO₂	1	99811	61156
Riebeckite ()*	Amphibole	Na₂(Fe²⁺₃Fe³⁺₂)Si₈O₂₂(OH)₂	1	99811	375
Zircon ()*	Zircon	Zr(SiO₄)	1	99811	5251

No ages have been assigned to this locality yet.

All locality data graciously provided by mindat.org

All age data...