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:
Mandevontena, Masindray, Soavinandriana, Itasy, Madagascar

mindat Locality ID: 206728
mindat URL: http://www.mindat.org/loc-206728.html

Tectonic Settings:

Total number of sublocalities beneath "Mandevontena, Masindray, Soavinandriana, Itasy, Madagascar": 1
Total number of bottom-level sublocalities: 1

Number of Child Localities: 1
Child Localities:
Unnamed Pegmatite

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

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	Bismutite	Clay	Feldspar	Garnet	Mica	None	Not in a structural group	Quartz	Stibnite

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 Bi C H K Mn O S Si

Elements from minerals reported directly at this locality:

Structural Groups for minerals in this locality:
Beryl Bismutite Clay Feldspar Garnet Mica None Not in a structural group Quartz Stibnite

8 IMA Minerals at location:

Bertrandite ()*	Beryl ()*	Bismuthinite ()*	Bismutite ()*	Microcline ()*
Muscovite ()*	Quartz ()*	Spessartine ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Bertrandite ()*	Not in a structural group	Be₄Si₂O₇(OH)₂	1	79498	606
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	1	79498	4286
Bismuthinite ()*	Stibnite	Bi₂S₃	1	79498	1935
Bismutite ()*	Bismutite	Bi₂O₂(CO₃)	1	79498	716
Microcline ()*	Feldspar	K(AlSi₃O₈)	1	79498	4924
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	1	79498	17380
Quartz ()*	Quartz	SiO₂	1	79498	61156
Spessartine ()*	Garnet	Mn²⁺₃Al₂(SiO₄)₃	1	79498	1214

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...