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:
Toamasina II, Atsinanana, Madagascar

mindat Locality ID: 188275
mindat URL: http://www.mindat.org/loc-188275.html

Tectonic Settings:

Total number of sublocalities beneath "Toamasina II, Atsinanana, Madagascar": 15
Total number of bottom-level sublocalities: 10

Number of Child Localities: 8
Child Localities:
Ambodilazana
Ambodiriana Commune
Antetezambaro
Farafatrana
Foulpointe Commune
Mangabe
Sahambala
Toamasina Suburbaine

Latitude: 17°50'41"S
Longitude: 49°18'21"E
Decimal Degree (lat, lon): -17.844722222222,49.305833333333

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.

Calcite	Chlorite	Clay	Clinozoisite	Corundum	Epidote	Feldspar	None	Not in a structural group	Quartz
Spinel

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 Cr Fe H Mg Na O Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Calcite Chlorite Clay Clinozoisite Corundum Epidote Feldspar None Not in a structural group Quartz
Spinel

9 IMA Minerals at location:

Albite ()*	Calcite ()*	Chromite ()*	Clinochlore ()*	Corundum ()*
Epidote ()*	Laumontite ()*	Quartz ()*	Spinel ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Albite ()*	Feldspar	Na(AlSi₃O₈)	1	79105	8803
Calcite ()*	Calcite	Ca(CO₃)	2	79102,79105	27770
Chromite ()*	Spinel	Fe²⁺Cr₂O₄	2	79108,79109	3902
Clinochlore ()*	Chlorite Clay	Mg₅Al(AlSi₃O₁₀)(OH)₈	1	79101	1756
Corundum ()*	Corundum	Al₂O₃	2	79101,79111	1797
Epidote ()*	Epidote Clinozoisite	Ca₂(Al₂Fe³⁺)[Si₂O₇][SiO₄]O(OH)	1	79105	8173
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O	1	79102	1271
Quartz ()*	Quartz	SiO₂	1	79105	61156
Spinel ()*	Spinel	MgAl₂O₄	1	79101	1934

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...