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Tsilaizina pegmatite, Sahanivotry Manandona, Antsirabe II District, Vakinankaratra, Madagascari
Regional Level Types
Tsilaizina pegmatitePegmatite
Sahanivotry ManandonaCommune
Antsirabe II DistrictDistrict
VakinankaratraRegion
MadagascarCountry
Tsilaizina pegmatite, Sahatany Pegmatite Field (Mt Ibity area), Madagascar

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Latitude & Longitude (WGS84):
20° 10' 22'' South , 47° 0' 43'' East
Latitude & Longitude (decimal):
-20.17294,47.01218
GeoHash:
G#: mh3mjz9hp
GRN:
S14E32
Type:
Pegmatite
Köppen climate type:
Cfb : Temperate oceanic climate
Nearest Settlements:
PlacePopulationDistance
Antsirabe186,253 (2018)34.2km
Soanindrariny21,000 (2018)38.1km
Fandriana31,437 (2018)39.3km
Betafo29,785 (2018)41.4km
Ambositra30,353 (2018)46.5km
Mindat Locality ID:
27797
Long-form identifier:
mindat:1:2:27797:9
GUID (UUID V4):
9ff87369-ea72-46ed-8c2e-05e2981d97b7
Other/historical names associated with this locality:
Tsilaisina pegmatite
Other Languages:
Malagasy:
Pegmatitan'i Tsilaizina, Kaominin'i Sahanivotry Manandona, Distrikan' Antsirabe II, Vakinankaratra, Madagasikara


A complex type LCT pegmatite, known for large tabular crystals of pink beryl, a yellow Mn-rich variety of tourmaline called "tsilaisite". It is situated south of the quartzite Ibity Massif (Mt. Ibity), on the northern side of Mt. Tsilaizina, in the Sahatany Pegmatite Field south of the town Antsirabe in the main highland of Madagascar. The pegmatite is hosted by Proterozoic metapelites.

Rakotoarison (1964) nr. 58 (Map-coordinates: X= 659.125 Y= 459.950).

Note:
Minerals originating from Antandrokomby (especially londonite-rhodizite and small crystals of pigeonblood-red elbaite-schorl etc) have been sold at markets in Sahanivotry and Antsirabe (especially in the 1990s) as coming (erronously) from Tsiliazina.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


24 valid minerals. 1 erroneous literature entry.

Rock Types Recorded

Note: 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:

ⓘ Albite
Formula: Na(AlSi3O8)
ⓘ Albite var. Cleavelandite
Formula: Na(AlSi3O8)
ⓘ Anatase
Formula: TiO2
ⓘ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
Habit: "cristaux hexagonaux basés " (A.Lacroix (1922)
Colour: white
ⓘ Baryte
Formula: BaSO4
ⓘ Beryl
Formula: Be3Al2(Si6O18)
ⓘ 'Biotite'
Formula: K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ Bismite
Formula: Bi2O3
ⓘ Bismuth
Formula: Bi
Habit: massive chunks
ⓘ Bismutite
Formula: (BiO)2CO3
ⓘ Columbite-(Mn)
Formula: Mn2+Nb2O6
ⓘ Dravite
Formula: NaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘ Elbaite
Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Description: Yellow tourmaline has been found to be elbaite with a tendency toward Ca-enrichment. Most are OH-dominant, with fluorine ranging from 0.275 to 0.551 apfu F (Fig. 8). They are low-Fe, very high-Mn elbaite (Simmons et al 2011)
ⓘ Euxenite-(Y) ?
Formula: (Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
ⓘ Goethite
Formula: α-Fe3+O(OH)
ⓘ Hematite
Formula: Fe2O3
ⓘ 'Lepidolite'
ⓘ 'Liddicoatite'
Formula: Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Colour: green
Description: Determined from a green zone inside a pink elbaite (Ranorosoa 1986)
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
ⓘ Microcline
Formula: K(AlSi3O8)
ⓘ Monazite-(Ce)
Formula: Ce(PO4)
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ 'Psilomelane'
ⓘ Pucherite
Formula: Bi(VO4)
ⓘ 'Pyrochlore Supergroup'
Formula: A2-mD2X6-wZ1-n
ⓘ Quartz
Formula: SiO2
Habit: massive
Colour: greyish
ⓘ Quartz var. Amethyst
Formula: SiO2
ⓘ Quartz var. Smoky Quartz
Formula: SiO2
ⓘ Rhodizite
Formula: (K,Cs)Al4Be4(B,Be)12O28
Description: Erronousløy reported by Lefevre & Laurent (1998). At the time of their investigation at lot of material from Antandrokomby were offered ast the markets in Madagascar ass coming from Tsilaizina. However, the correct locality is Antandrokomby (Knut Edvard Larsen data 1997)
ⓘ Rutile
Formula: TiO2
ⓘ Rutile var. Ilmenorutile
Formula: (Ti,Nb)O2
ⓘ Schorl
Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘ Spessartine
Formula: Mn2+3Al2(SiO4)3
ⓘ 'Tourmaline'
Formula: AD3G6 (T6O18)(BO3)3X3Z
ⓘ Xenotime-(Y)
Formula: Y(PO4)
ⓘ Zircon
Formula: Zr(SiO4)

Gallery:

Mn2+3Al2(SiO4)3ⓘ Spessartine
AD3G6 (T6O18)(BO3)3X3Zⓘ 'Tourmaline'

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘBismuth1.CA.05Bi
Group 4 - Oxides and Hydroxides
ⓘGoethite4.00.α-Fe3+O(OH)
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘHematite4.CB.05Fe2O3
ⓘBismite4.CB.60Bi2O3
ⓘQuartz4.DA.05SiO2
ⓘvar. Amethyst4.DA.05SiO2
ⓘvar. Smoky Quartz4.DA.05SiO2
ⓘRutile
var. Ilmenorutile		4.DB.05(Ti,Nb)O2
ⓘ4.DB.05TiO2
ⓘColumbite-(Mn)4.DB.35Mn2+Nb2O6
ⓘAnatase4.DD.05TiO2
ⓘEuxenite-(Y) ?4.DG.05(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Group 5 - Nitrates and Carbonates
ⓘBismutite5.BE.25(BiO)2CO3
Group 6 - Borates
ⓘRhodizite ?6.GC.05(K,Cs)Al4Be4(B,Be)12O28
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4
Group 8 - Phosphates, Arsenates and Vanadates
ⓘXenotime-(Y)8.AD.35Y(PO4)
ⓘPucherite8.AD.40Bi(VO4)
ⓘMonazite-(Ce)8.AD.50Ce(PO4)
Group 9 - Silicates
ⓘSpessartine9.AD.25Mn2+3Al2(SiO4)3
ⓘZircon9.AD.30Zr(SiO4)
ⓘBeryl9.CJ.05Be3Al2(Si6O18)
ⓘ'Liddicoatite'9.CK.05Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘDravite9.CK.05NaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘElbaite9.CK.05Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘSchorl9.CK.05NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘMicrocline9.FA.30K(AlSi3O8)
ⓘAlbite
var. Cleavelandite		9.FA.35Na(AlSi3O8)
ⓘ9.FA.35Na(AlSi3O8)
Unclassified
ⓘ'Tourmaline'-AD3G6 (T6O18)(BO3)3X3Z
ⓘ'Psilomelane'-
ⓘ'Lepidolite'-
ⓘ'Biotite'-K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
ⓘ'Pyrochlore Supergroup'-A2-mD2X6-wZ1-n
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
Hⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Hⓘ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Hⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Hⓘ Goethiteα-Fe3+O(OH)
Hⓘ LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Hⓘ ApatiteCa5(PO4)3(Cl/F/OH)
LiLithium
Liⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Liⓘ LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
BeBeryllium
Beⓘ BerylBe3Al2(Si6O18)
Beⓘ Rhodizite(K,Cs)Al4Be4(B,Be)12O28
BBoron
Bⓘ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Bⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Bⓘ LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Bⓘ Rhodizite(K,Cs)Al4Be4(B,Be)12O28
Bⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Bⓘ TourmalineAD3G6 (T6O18)(BO3)3X3Z
CCarbon
Cⓘ Bismutite(BiO)2CO3
OOxygen
Oⓘ AlbiteNa(AlSi3O8)
Oⓘ Quartz var. AmethystSiO2
Oⓘ AnataseTiO2
Oⓘ BaryteBaSO4
Oⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Oⓘ BismiteBi2O3
Oⓘ Bismutite(BiO)2CO3
Oⓘ BerylBe3Al2(Si6O18)
Oⓘ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Oⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Oⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Oⓘ Goethiteα-Fe3+O(OH)
Oⓘ HematiteFe2O3
Oⓘ Rutile var. Ilmenorutile(Ti,Nb)O2
Oⓘ LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Oⓘ Columbite-(Mn)Mn2+Nb2O6
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MicroclineK(AlSi3O8)
Oⓘ Monazite-(Ce)Ce(PO4)
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ PucheriteBi(VO4)
Oⓘ QuartzSiO2
Oⓘ Rhodizite(K,Cs)Al4Be4(B,Be)12O28
Oⓘ RutileTiO2
Oⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Oⓘ Quartz var. Smoky QuartzSiO2
Oⓘ SpessartineMn32+Al2(SiO4)3
Oⓘ TourmalineAD3G6 (T6O18)(BO3)3X3Z
Oⓘ Xenotime-(Y)Y(PO4)
Oⓘ ZirconZr(SiO4)
Oⓘ Albite var. CleavelanditeNa(AlSi3O8)
Oⓘ ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
Fⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Fⓘ ApatiteCa5(PO4)3(Cl/F/OH)
NaSodium
Naⓘ AlbiteNa(AlSi3O8)
Naⓘ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Naⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Naⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Naⓘ Albite var. CleavelanditeNa(AlSi3O8)
MgMagnesium
Mgⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Mgⓘ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
AlAluminium
Alⓘ AlbiteNa(AlSi3O8)
Alⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Alⓘ BerylBe3Al2(Si6O18)
Alⓘ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Alⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Alⓘ LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Alⓘ MicroclineK(AlSi3O8)
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ Rhodizite(K,Cs)Al4Be4(B,Be)12O28
Alⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Alⓘ SpessartineMn32+Al2(SiO4)3
Alⓘ Albite var. CleavelanditeNa(AlSi3O8)
SiSilicon
Siⓘ AlbiteNa(AlSi3O8)
Siⓘ Quartz var. AmethystSiO2
Siⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Siⓘ BerylBe3Al2(Si6O18)
Siⓘ DraviteNaMg3Al6(Si6O18)(BO3)3(OH)3(OH)
Siⓘ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Siⓘ LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Siⓘ MicroclineK(AlSi3O8)
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Siⓘ Quartz var. Smoky QuartzSiO2
Siⓘ SpessartineMn32+Al2(SiO4)3
Siⓘ ZirconZr(SiO4)
Siⓘ Albite var. CleavelanditeNa(AlSi3O8)
PPhosphorus
Pⓘ Monazite-(Ce)Ce(PO4)
Pⓘ Xenotime-(Y)Y(PO4)
Pⓘ ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
Sⓘ BaryteBaSO4
ClChlorine
Clⓘ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Kⓘ MicroclineK(AlSi3O8)
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ Rhodizite(K,Cs)Al4Be4(B,Be)12O28
CaCalcium
Caⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Caⓘ LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Caⓘ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiⓘ AnataseTiO2
Tiⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Tiⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Tiⓘ Rutile var. Ilmenorutile(Ti,Nb)O2
Tiⓘ RutileTiO2
VVanadium
Vⓘ PucheriteBi(VO4)
MnManganese
Mnⓘ Columbite-(Mn)Mn2+Nb2O6
Mnⓘ SpessartineMn32+Al2(SiO4)3
FeIron
Feⓘ BiotiteK(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Feⓘ Goethiteα-Fe3+O(OH)
Feⓘ HematiteFe2O3
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
YYttrium
Yⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Yⓘ Xenotime-(Y)Y(PO4)
ZrZirconium
Zrⓘ ZirconZr(SiO4)
NbNiobium
Nbⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Nbⓘ Rutile var. Ilmenorutile(Ti,Nb)O2
Nbⓘ Columbite-(Mn)Mn2+Nb2O6
CsCaesium
Csⓘ Rhodizite(K,Cs)Al4Be4(B,Be)12O28
BaBarium
Baⓘ BaryteBaSO4
CeCerium
Ceⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
Ceⓘ Monazite-(Ce)Ce(PO4)
TaTantalum
Taⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
BiBismuth
Biⓘ BismiteBi2O3
Biⓘ BismuthBi
Biⓘ Bismutite(BiO)2CO3
Biⓘ PucheriteBi(VO4)
ThThorium
Thⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6
UUranium
Uⓘ Euxenite-(Y)(Y,Ca,Ce,U,Th)(Nb,Ta,Ti)2O6

Other Regions, Features and Areas containing this locality

Madagascar
Somali PlateTectonic Plate

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Dabren, Albert (1906) Sur quelques pierres précieuses de Madagascar [Rubellite et Triphane]. Bulletin de l'Académie Malgache, 4. 132-137with a note of a find of yellow tourmaline from Tsilaizina
Duparc, Louis, Wunder, M., Sabot, R. (1910) Les Minéraux des Pegmatites des environs d'Antsirabé a Madagascar. Mémoires de la Société de Physique et d'Histoire Naturelle de Geneve Vol. 36 (3)
Lacroix, Alfred (1922) Minéralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. Augustin Challamel, Paris. p.1-624.
Rakotoarison, W. (1964, May) Les pegmatites de la Sahatany. Archive Service Géologique de Madagascar A. 1983. Service Géologique
Ranorosoa, Nadine (1986) Thèse de doctorat de L'Université Paul Sabatier, Toulouse. Étude minéralogique des pegmatites du champ de la Sahatany, Madagascar, 1-240
Simmons, W. B., Falster, A. U., Laurs, B. M. (2011) A survey of Mn-rich yellow tourmaline from worldwide localities and implications for the petrogenesis of granitic pegmatites. The Canadian Mineralogist, 49 (1) 301-319 doi:10.3749/canmin.49.1.301with analysis of a yellow elbaite from Tsiliazina
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