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Ambahonolona, Sahatany Valley, Ibity, Antsirabe II, Vakinankaratra, Madagascari
Regional Level Types
AmbahonolonaPegmatite
Sahatany ValleyValley
IbityCommune
Antsirabe IIDistrict
VakinankaratraRegion
MadagascarCountry

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Key
Latitude & Longitude (WGS84):
20° South , 46° East (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~9km
Locality type:
Other Languages:
Malagasy:
Ambahonolona, Lohasahan'i Sahatany, Kaominin' Alatsinainy Ibity, Distrikan' Antsirabe II, Vakinankaratra, Madagasikara


The Ambahonolona locality consist of 3 prospects/quarries worked on a pegmatite located on the eastern side of the Sahatany river, close to the foot of the Ambahahonolona hill.

Rakotoarison (1964) locality nr 25. (Map coordinates: X= 670.750 Y= 454,625).

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


2 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:

'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Reference: Rakotoarison, W. (1964) Les pegmatites de la Sahatany. Archive du Service Géologique Madagascar. A.1983, p.1-39
'Feldspar Group'
Reference: Rakotoarison, W. (1964) Les pegmatites de la Sahatany. Archive du Service Géologique Madagascar. A.1983, p.1-39
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Rakotoarison, W. (1964) Les pegmatites de la Sahatany. Archive du Service Géologique Madagascar. A.1983, p.1-39
Quartz
Formula: SiO2
Reference: Rakotoarison, W. (1964) Les pegmatites de la Sahatany. Archive du Service Géologique Madagascar. A.1983, p.1-39
'Tourmaline'
Formula: A(D3)G6(Si6O18)(BO3)3X3Z
Reference: Rakotoarison, W. (1964) Les pegmatites de la Sahatany. Archive du Service Géologique Madagascar. A.1983, p.1-39
'Tourmaline var: Rubellite'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Rakotoarison, W. (1964) Les pegmatites de la Sahatany. Archive du Service Géologique Madagascar. A.1983, p.1-39

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Group 9 - Silicates
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Unclassified Minerals, Rocks, etc.
'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
'Feldspar Group'-
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z
'var: Rubellite'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
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'-
'Tourmaline'-A(D3)G6(Si6O18)(BO3)3X3Z
'var: Rubellite'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
H MuscoviteKAl2(AlSi3O10)(OH)2
BBoron
B Tourmaline (var: Rubellite)A(D3)G6(T6O18)(BO3)3X3Z
B TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
OOxygen
O QuartzSiO2
O BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
O MuscoviteKAl2(AlSi3O10)(OH)2
O Tourmaline (var: Rubellite)A(D3)G6(T6O18)(BO3)3X3Z
O TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
FFluorine
F BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
MgMagnesium
Mg BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
AlAluminium
Al BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Al MuscoviteKAl2(AlSi3O10)(OH)2
SiSilicon
Si QuartzSiO2
Si BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si TourmalineA(D3)G6(Si6O18)(BO3)3X3Z
KPotassium
K BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg)([Si/Al]Si2O10)(OH/F)2
K MuscoviteKAl2(AlSi3O10)(OH)2
FeIron
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)
Rakotoarison, W. (1964) Les pegmatites de la Sahatany. Archive du Service Géologique Madagascar. A.1983, p.1-39


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