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:
Anjanamanjaka, Vinaninkarena, Antsirabe II, Vakinankaratra, Madagascar

mindat Locality ID: 302808
mindat URL: http://www.mindat.org/loc-302808.html

Tectonic Settings:

Total number of sublocalities beneath "Anjanamanjaka, Vinaninkarena, Antsirabe II, Vakinankaratra, Madagascar": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Vinaninkarena Uranium Deposit

Latitude: 19°57'37"S
Longitude: 47°3'58"E
Decimal Degree (lat, lon): -19.960277777778,47.066111111111

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.

Amorphous	Autunite	Baryte	Marcasite	None	Phosphuranylite

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: Ba Ca Fe H K O P S Si U

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Amorphous Autunite Baryte Marcasite None Phosphuranylite

6 IMA Minerals at location:

Autunite ()*	Baryte ()*	Marcasite ()*	Opal ()*	Phosphuranylite ()*
Uranocircite-II ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Autunite ()*	Autunite	Ca(UO₂)₂(PO₄)₂·10-12H₂O	1	79756	1272
Baryte ()*	Baryte	Ba(SO₄)	1	79756	11547
Marcasite ()*	Marcasite	FeS₂	1	79756	5674
Opal ()*	Amorphous	SiO₂·nH₂O	1	79756	2994
Phosphuranylite ()*	Phosphuranylite	KCa(H₃O)₃(UO₂)₇(PO₄)₄O₄·8H₂O	1	79756	182
Uranocircite-II ()*	None	Ba(UO₂)₂(PO₄)₂·10H₂O	1	79756	89

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...