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:
Ianapera Emerald Deposit (Sakalava), Ianapera, Benenitra, Atsimo-Andrefana, Madagascar

mindat Locality ID: 27838
mindat URL: http://www.mindat.org/loc-27838.html

Tectonic Settings:

Total number of sublocalities beneath "Ianapera Emerald Deposit (Sakalava), Ianapera, Benenitra, Atsimo-Andrefana, Madagascar": 0
Total number of bottom-level sublocalities: 0

Latitude: 23°35'5"S
Longitude: 45°8'47"E
Decimal Degree (lat, lon): -23.584722222222,45.146388888889

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.

Amphibole	Baryte	Beryl	Clay	Mica	None	Phenakite	Pyrite	Quartz	Rutile
Sapphirine	Serpentine	Talc	Tourmaline	Zircon

Baryte ()*	Beryl ()*	Chrysotile ()*	Clintonite ()*	Dolomite ()*
Dravite ()*	Magnesio-hornblende ()*	Nahcolite ()*	Phenakite ()*	Phlogopite ()*
Pyrite ()*	Quartz ()*	Rutile ()*	Schorl ()*	Serendibite ()*
Talc ()*	Tremolite ()*	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 Ba Be C Ca Fe H K Mg Na O S Si Ti Zr

Elements from minerals reported directly at this locality: Al B Ba Be C Ca Fe H K Mg Na O S Si Ti Zr

Structural Groups for minerals in this locality:
Amphibole Baryte Beryl Clay Mica None Phenakite Pyrite Quartz Rutile
Sapphirine Serpentine Talc Tourmaline Zircon

18 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of localities containing mineral
Baryte ()*	Baryte	Ba(SO₄)	11547
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	4286
Chrysotile ()*	Serpentine Clay	Mg₃Si₂O₅(OH)₄	951
Clintonite ()*	Mica Clay	CaAlMg₂(SiAl₃O₁₀)(OH)₂	86
Dolomite ()*	None	CaMg(CO₃)₂	9895
Dravite ()*	Tourmaline	NaMg₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	648
Magnesio-hornblende ()*	Amphibole	Ca₂(Mg₄Al)(Si₇Al)O₂₂(OH)₂	238
Nahcolite ()*	None	NaH(CO₃)	78
Phenakite ()*	Phenakite	Be₂(SiO₄)	326
Phlogopite ()*	Mica Clay	KMg₃(AlSi₃O₁₀)(OH)₂	2273
Pyrite ()*	Pyrite	FeS₂	39462
Quartz ()*	Quartz	SiO₂	61156
Rutile ()*	Rutile	TiO₂	5614
Schorl ()*	Tourmaline	NaFe²⁺₃Al₆(Si₆O₁₈)(BO₃)₃(OH)₃(OH)	2705
Serendibite ()*	Sapphirine	Ca₄[Mg₆Al₆]O₄[Si₆B₃Al₃O₃₆]	19
Talc ()*	Clay Talc	Mg₃Si₄O₁₀(OH)₂	3337
Tremolite ()*	Amphibole	Ca₂(Mg_5.0-4.5Fe²⁺_0.0-0.5)Si₈O₂₂(OH)₂	2562
Zircon ()*	Zircon	Zr(SiO₄)	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...