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Ankaditany, Sakalalina, Ihosy, Ihorombe, Madagascari
Regional Level Types
Ankaditany- not defined -
SakalalinaCommune
IhosyDistrict
IhorombeRegion
MadagascarCountry

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Latitude & Longitude (WGS84):
22° South , 46° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~22km
Köppen climate type:
Other Languages:
Malagasy:
Ankaditany, Kaominin'i Sakalalina, Distrikan' Ihosy, Faritr' Ihorombe, Madagasikara


In lamboanite (a light-grey migmatitic gneiss) located about 50 km E of the town Ihosy.

Regions containing this locality

Somali Plate (Somalia Plate)Tectonic Plate
Fianarantsoa Province, MadagascarProvince

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


3 valid minerals.

Rock Types Recorded

Note: this is a very new system on mindat.org and data is currently VERY limited. Please bear with us while we work towards adding this information!

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

Almandine
Formula: Fe2+3Al2(SiO4)3
Reference: Behier, J. (1960): Contribution á la Minéralogie de Madagascar. Annales Géologiques de Madagascar XXIX, Tananarive, p 29
'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Reference: Lacroix, A. (1939): La lamboanite, schiste cristallin à faciès gneissique dépourvu de quartz et à pegmatite à cordiérite qui l'accompagne à Ankaditany (S. Madagascar) . Bulletin de Minéralogie 62: 289-298
Cordierite
Formula: (Mg,Fe)2Al3(AlSi5O18)
Description: large masses
Reference: Behier, J. (1960): Contribution á la Minéralogie de Madagascar. Annales Géologiques de Madagascar XXIX, Tananarive, p 29
'Feldspar Group'
Reference: Lacroix, A. (1939): La lamboanite, schiste cristallin à faciès gneissique dépourvu de quartz et à pegmatite à cordiérite qui l'accompagne à Ankaditany (S. Madagascar) . Bulletin de Minéralogie 62: 289-298
'Feldspar Group var: Antiperthite'
Reference: Lacroix, A. (1939): La lamboanite, schiste cristallin à faciès gneissique dépourvu de quartz et à pegmatite à cordiérite qui l'accompagne à Ankaditany (S. Madagascar) . Bulletin de Minéralogie 62: 289-298
Quartz
Formula: SiO2
Reference: Lacroix, A. (1939): La lamboanite, schiste cristallin à faciès gneissique dépourvu de quartz et à pegmatite à cordiérite qui l'accompagne à Ankaditany (S. Madagascar) . Bulletin de Minéralogie 62: 289-298

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 9 - Silicates
Almandine9.AD.25Fe2+3Al2(SiO4)3
Cordierite9.CJ.10(Mg,Fe)2Al3(AlSi5O18)
Unclassified Minerals, Rocks, etc.
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Feldspar Group'-
'var: Antiperthite'-

List of minerals arranged by Dana 8th Edition classification

Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Almandine51.4.3a.2Fe2+3Al2(SiO4)3
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with Al substituted rings
Cordierite61.2.1.1(Mg,Fe)2Al3(AlSi5O18)
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Unclassified Minerals, Mixtures, etc.
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Feldspar Group'-
'var: Antiperthite'-

List of minerals for each chemical element

HHydrogen
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
OOxygen
O Cordierite(Mg,Fe)2Al3(AlSi5O18)
O AlmandineFe32+Al2(SiO4)3
O QuartzSiO2
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
FFluorine
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
MgMagnesium
Mg Cordierite(Mg,Fe)2Al3(AlSi5O18)
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
AlAluminium
Al Cordierite(Mg,Fe)2Al3(AlSi5O18)
Al AlmandineFe32+Al2(SiO4)3
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
SiSilicon
Si Cordierite(Mg,Fe)2Al3(AlSi5O18)
Si AlmandineFe32+Al2(SiO4)3
Si QuartzSiO2
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
KPotassium
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
FeIron
Fe Cordierite(Mg,Fe)2Al3(AlSi5O18)
Fe AlmandineFe32+Al2(SiO4)3
Fe BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Lacroix, A. (1939): La lamboanite, schiste cristallin à faciès gneissique dépourvu de quartz et à pegmatite à cordiérite qui l'accompagne à Ankaditany (S. Madagascar) . Bulletin de Minéralogie 62: 289-298
Behier, J. (1963): Carte mineralogique de Madagascar. Archive Service Géologique Madagascar. A 1871
Behier, J. (1960): Contribution á la Minéralogie de Madagascar. Annales Géologiques de Madagascar XXIX, Tananarive, p. 29 [with analysis of cordierite]

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