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:
Ambatondrazaka, Alaotra-Mangoro, Madagascar

mindat Locality ID: 158116
mindat URL: http://www.mindat.org/loc-158116.html

Tectonic Settings:

Total number of sublocalities beneath "Ambatondrazaka, Alaotra-Mangoro, Madagascar": 32
Total number of bottom-level sublocalities: 25

Number of Child Localities: 13
Child Localities:
Ambandrika
Ambatondrazaka I
Ambatondrazaka II
Ambatosoratra
Ambohitsilaozana
Ampanorana East
Didy
Feramanga Nord
Ilafy
Imerimandroso
Lac Alaotra Chrysoberyl Pegmatites
Manakambahiny East
Manakambahiny West

Latitude: 17°49'3"S
Longitude: 48°34'29"E
Decimal Degree (lat, lon): -17.8175,48.574722222222

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	Beryl	Clay	Corundum	Dumortierite	Feldspar	Garnet	Mica	None	Olivine
Quartz	Smectite-vermiculite	Spinel	Tourmaline	Zircon

Albite ()*	Almandine ()*	Beryl ()*	Chrysoberyl ()*	Corundum ()*
Dumortierite ()*	Graphite ()*	Magnetite ()*	Microcline ()*	Muscovite ()*
Opal ()*	Orthoclase ()*	Quartz ()*	Schorl ()*	Spessartine ()*
Vermiculite ()*	Zircon ()*

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 Be C Fe H K Mg Mn Na O Si Zr

Elements from minerals reported directly at this locality: Al K O Si

Structural Groups for minerals in this locality:
Amorphous Beryl Clay Corundum Dumortierite Feldspar Garnet Mica None Olivine
Quartz Smectite-vermiculite Spinel Tourmaline Zircon

17 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of Sublocalities containing mineral	LOCALITY IDs, not mindat ids	# of localities containing mineral
Albite ()*	Feldspar	Na(AlSi₃O₈)	1	78319	8803
Almandine ()*	Garnet	Fe²⁺₃Al₂(SiO₄)₃	1	78302	2353
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	4	78298,78300,78307,78319	4286
Chrysoberyl ()*	Olivine	BeAl₂O₄	6	78292,78298,78300,78301,78306,78319	321
Corundum ()*	Corundum	Al₂O₃	6	78294,78309,78310,78311,78312,78313	1797
Dumortierite ()*	Dumortierite	AlAl₆BSi₃O₁₈	2	78298,78300	231
Graphite ()*	None	C	1	78294	2812
Magnetite ()*	Spinel	Fe²⁺Fe³⁺₂O₄	4	78298,78299,78315,78316	14899
Microcline ()*	Feldspar	K(AlSi₃O₈)	3	78297,78300,78319	4924
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	3	78297,78300,78302	17380
Opal ()*	Amorphous	SiO₂·nH₂O	1	78298	2994
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	0		2349
Quartz ()*	Quartz	SiO₂	11	78298,78299,78300,78301,78302,78306,78307,78309,78315,78316,78319	61156
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	4	78298,78302,78305,78319	2705
Spessartine ()*	Garnet	Mn²⁺₃Al₂(SiO₄)₃	1	78298	1214
Vermiculite ()*	Clay Smectite-vermiculite	Mg_0.7(Mg,Fe,Al)₆(Si,Al)₈O₂₀(OH)₄·8H₂O	5	78298,78299,78300,78315,78316	652
Zircon ()*	Zircon	Zr(SiO₄)	1	78294	5251

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...