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:
Voronkafotra (Vorokafotra; Vohidava Mine), Ianabinda, Betroka, Anosy, Madagascar

mindat Locality ID: 108200
mindat URL: http://www.mindat.org/loc-108200.html

Tectonic Settings:

Total number of sublocalities beneath "Voronkafotra (Vorokafotra; Vohidava Mine), Ianabinda, Betroka, Anosy, Madagascar": 3
Total number of bottom-level sublocalities: 3

Number of Child Localities: 3
Child Localities:
Besakoa Phlogopite Mine
Mahatsinjo Phlogopite Mine
Moraharivo Phlogopite Mine

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	Calcite	Clay	Corundum	Kornerupine	Mica	None	Not in a structural group	Pyroxene	Sapphirine
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 B C Ca F Fe H K Mg O Si

Elements from minerals reported directly at this locality: Al B Ca F Fe H Mg O Si

Structural Groups for minerals in this locality:
Beryl Calcite Clay Corundum Kornerupine Mica None Not in a structural group Pyroxene Sapphirine
Spinel

10 IMA Minerals at location:

Calcite ()*	Cordierite ()*	Corundum ()*	Diopside ()*	Enstatite ()*
Kornerupine ()*	Phlogopite ()*	Sapphirine ()*	Sillimanite ()*	Spinel ()*

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Calcite ()*	Calcite	Ca(CO₃)	2	78829,78830	27770
Cordierite ()*	Beryl	Mg₂Al₄Si₅O₁₈	0		1008
Corundum ()*	Corundum	Al₂O₃	0		1797
Diopside ()*	Pyroxene	CaMgSi₂O₆	0		4135
Enstatite ()*	Pyroxene	Mg₂Si₂O₆	0		944
Kornerupine ()*	Kornerupine	(Mg,Fe²⁺,Al, )₁₀(Si,Al,B)₅O₂₁(OH,F)₂	0		68
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	3	78828,78829,78830	2273
Sapphirine ()*	Sapphirine	Mg₄(Mg₃Al₉)O₄[Si₃Al₉O₃₆]	1	78829	129
Sillimanite ()*	Not in a structural group	Al₂SiO₅	0		1516
Spinel ()*	Spinel	MgAl₂O₄	0		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...