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:
Sambava District, Sava, Madagascar

mindat Locality ID: 191231
mindat URL: http://www.mindat.org/loc-191231.html

Tectonic Settings:

Total number of sublocalities beneath "Sambava District, Sava, Madagascar": 6
Total number of bottom-level sublocalities: 4

Number of Child Localities: 4
Child Localities:
Ambohimalaza Commune
Basalt Outcrops
Nosiarina Commune
Sambava Commune

Latitude: 14°16'34"S
Longitude: 50°3'53"E
Decimal Degree (lat, lon): -14.276111111111,50.064722222222

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.

Analcime	Apophyllite	Calcite	Heulandite	Mordenite	None	Not in a structural group	Quartz	Stilbite

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 H K Na O Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Analcime Apophyllite Calcite Heulandite Mordenite None Not in a structural group Quartz Stilbite

8 IMA Minerals at location:

Analcime ()*	Calcite ()*	Fluorapophyllite-(K) ()*	Heulandite-Ca ()*	Laumontite ()*
Mordenite ()*	Quartz ()*	Stilbite-Ca ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Analcime ()*	Analcime	Na(AlSi₂O₆)·H₂O	1	79572	1627
Calcite ()*	Calcite	Ca(CO₃)	1	79571	27770
Fluorapophyllite-(K) ()*	Apophyllite	KCa₄Si₈O₂₀F·8H₂O	1	79571	303
Heulandite-Ca ()*	Heulandite	(Ca,Na,K)₅(Si₂₇Al₉)O₇₂·26H₂O	1	79571	246
Laumontite ()*	Not in a structural group	CaAl₂Si₄O₁₂·4H₂O	1	79571	1271
Mordenite ()*	Mordenite	(Na₂,Ca,K₂)₄(Al₈Si₄₀)O₉₆·28H₂O	1	79571	405
Quartz ()*	Quartz	SiO₂	1	79571	61156
Stilbite-Ca ()*	Stilbite	NaCa₄(Si₂₇Al₉)O₇₂·28H₂O	1	79571	268

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...