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Estatoby (Antanetinilapa), Sahatany Valley, Ibity, Antsirabe II District, Vakinankaratra, Madagascari
Regional Level Types
Estatoby (Antanetinilapa)Pegmatite
Sahatany ValleyValley
IbityCommune
Antsirabe II DistrictDistrict
VakinankaratraRegion
MadagascarCountry
Estatoby (Antanetinilapa), Sahatany Valley, Sahatany Pegmatite Field (Mt Ibity area), Madagascar

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Latitude & Longitude (WGS84):
20° 3' 25'' South , 46° 57' 15'' East
Latitude & Longitude (decimal):
Nearest Settlements:
PlacePopulationDistance
Antsirabe186,253 (2018)22.8km
Betafo29,785 (2018)27.2km
Soanindrariny21,000 (2018)34.0km
Fandriana31,437 (2018)48.8km
Ambatofinandrahana25,997 (2018)57.3km
Mindat Locality ID:
57065
Long-form identifier:
mindat:1:2:57065:4
GUID (UUID V4):
250dd92e-71dc-4c07-b16a-ab0d99bc555b
Other/historical names associated with this locality:
Sahatany pegmatite field
Other Languages:
Malagasy:
Estatoby (Antanetinilapa), Lohasahan'i Sahatany, Kaominin' Alatsinainy Ibity, Distrikan' Antsirabe II, Vakinankaratra, Madagasikara


A complex type LCT pegmatite, elbaite subtype.

Estatoby (Antanetinilapa) pegmatite/quarry is situated on a small hill behind the village Antanetinilapa east of Mt.Ilapa, south of a small affluent to the Sahatany river on the western side of the Sahatany river in the NE part of the Sahatany Valley. The local population calls the very quarry today "Estatoby", but the name known in literature is Antanetinilapa (Malagasy place names often changes).

Minerals, especially bityite (found here at the end of 1980s), are often mislabeled as coming from the Ilapa pegmatites (higher up in SSW direction). This is another locality nearby, but totally different from Antanetinilapa. So far bityite has not been reported from Ilapa. Some recent literature also wrongly spells the name of this locality as "Antanety ny Ilapa" probably because of a misunderstanding of the Malagasy language.

In 2012 a large pocket with polychromatic tourmaline were discovered, including one specimen 26 cm long weighing 4.6 kg, another one 5.2 kg. A total of 70 kg of crystals were recovered from the pocket. EDS Jeol electron microprobe analysis of several fragments of tourmalines from this find gave a significant amount of Ca and F, but only a limited amount of Na, confirming that fluor-liddicoatite is dominant in these crystals (Pezzotta & Praszkier 2013).

Rakotoarison (1964) locality nr 15.

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


18 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:

β“˜ Albite
Formula: Na(AlSi3O8)
β“˜ Albite var. Cleavelandite
Formula: Na(AlSi3O8)
β“˜ Allanite-(Ce)
Formula: (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
β“˜ Amesite
Formula: Mg2Al(AlSiO5)(OH)4
β“˜ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
β“˜ Axinite-(Mn)
Formula: Ca2Mn2+Al2BSi4O15(OH)
Description: Knut Edvard Larsen collection, identified by XRD at MGM, Oslo 1998.
β“˜ Beryl
Formula: Be3Al2(Si6O18)
Colour: green
βœͺ Bityite
Formula: CaLiAl2(AlBeSi2O10)(OH)2
Habit: pseudohexagonal barrelshaped polysyntetic twin crystals (to 5mm long)
Colour: colorless, sometimes with a tint of pale yellow
β“˜ Chevkinite-(Ce)
Formula: Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2
Description: Samples labelled "chevkinite-(Ce) has been showed to be allanite-(Ce). See Larsen (2003)
β“˜ Columbite-(Fe)
Formula: Fe2+Nb2O6
β“˜ 'Columbite-(Mn)-Tantalite-(Mn) Series'
β“˜ Danburite
Formula: CaB2Si2O8
Habit: small mm-sized pseudocubic xls & as ortorhombic prismatic xls
Colour: white, colorless,yellow
β“˜ Elbaite
Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
β“˜ Fluor-liddicoatite
Formula: Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
Description: Several fragments of polycromatic crystals from a 2012 find was analyzed by EDS Jeol electron microprobe and showed a gave a significant amount of Ca and F, but only a limited amount of Na, confirming that fluor-liddicoatite is dominant in these crystals (Pezzotta & Praszkier 2013)
β“˜ 'Lepidolite'
β“˜ Microcline
Formula: K(AlSi3O8)
β“˜ Microcline var. Amazonite
Formula: K(AlSi3O8)
β“˜ 'Monazite'
Formula: REE(PO4)
β“˜ Phenakite
Formula: Be2SiO4
β“˜ 'Pyrochlore Group'
Formula: A2Nb2(O,OH)6Z
Colour: dark brown
Description: SEM analysis : Nb2O5: 28,06; Ta2O5: 43,45; TiO2: 8,41; CaO: 2.44; UO2: 17.64.
β“˜ 'Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)'
Formula: (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
Colour: dark brown
Description: SEM analysis : Nb2O5: 28,06; Ta2O5: 43,45; TiO2: 8,41; CaO: 2.44; UO2: 17.64.
β“˜ 'Pyrochlore Supergroup'
Formula: A2-mD2X6-wZ1-n
β“˜ Quartz
Formula: SiO2
β“˜ Quartz var. Citrine
Formula: SiO2
β“˜ Schorl
Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
β“˜ Spessartine
Formula: Mn2+3Al2(SiO4)3
β“˜ Spodumene
Formula: LiAlSi2O6
β“˜ 'Tourmaline'
Formula: AD3G6 (T6O18)(BO3)3X3Z
β“˜ Zircon
Formula: Zr(SiO4)
β“˜ Zoisite
Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH)

Gallery:

Be3Al2(Si6O18)β“˜ Beryl
CaLiAl2(AlBeSi2O10)(OH)2β“˜ Bityite
AD3G6 (T6O18)(BO3)3X3Zβ“˜ 'Tourmaline'
(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)β“˜ Zoisite

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
β“˜'Pyrochlore Group'4.00.A2Nb2(O,OH)6Z
β“˜'var. Uranpyrochlore (of Hogarth 1977)'4.00.(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
β“˜Quartz
var. Citrine
4.DA.05SiO2
β“˜4.DA.05SiO2
β“˜Columbite-(Fe)4.DB.35Fe2+Nb2O6
Group 9 - Silicates
β“˜Phenakite9.AA.05Be2SiO4
β“˜Spessartine9.AD.25Mn2+3Al2(SiO4)3
β“˜Zircon9.AD.30Zr(SiO4)
β“˜Axinite-(Mn)9.BD.20Ca2Mn2+Al2BSi4O15(OH)
β“˜Chevkinite-(Ce) ?9.BE.70Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2
β“˜Allanite-(Ce)9.BG.05b(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
β“˜Zoisite9.BG.10(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
β“˜Beryl9.CJ.05Be3Al2(Si6O18)
β“˜Schorl9.CK.05NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH)
β“˜Fluor-liddicoatite9.CK.05Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
β“˜Elbaite9.CK.05Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
β“˜Spodumene9.DA.30LiAlSi2O6
β“˜Bityite9.EC.35CaLiAl2(AlBeSi2O10)(OH)2
β“˜Amesite9.ED.15Mg2Al(AlSiO5)(OH)4
β“˜Microcline9.FA.30K(AlSi3O8)
β“˜var. Amazonite9.FA.30K(AlSi3O8)
β“˜Albite
var. Cleavelandite
9.FA.35Na(AlSi3O8)
β“˜9.FA.35Na(AlSi3O8)
β“˜Danburite9.FA.65CaB2Si2O8
Unclassified
β“˜'Monazite'-REE(PO4)
β“˜'Lepidolite'-
β“˜'Tourmaline'-AD3G6 (T6O18)(BO3)3X3Z
β“˜'Pyrochlore Supergroup'-A2-mD2X6-wZ1-n
β“˜'Apatite'-Ca5(PO4)3(Cl/F/OH)
β“˜'Columbite-(Mn)-Tantalite-(Mn) Series'-

List of minerals for each chemical element

HHydrogen
Hβ“˜ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Hβ“˜ AmesiteMg2Al(AlSiO5)(OH)4
Hβ“˜ BityiteCaLiAl2(AlBeSi2O10)(OH)2
Hβ“˜ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Hβ“˜ Axinite-(Mn)Ca2Mn2+Al2BSi4O15(OH)
Hβ“˜ Pyrochlore GroupA2Nb2(O,OH)6Z
Hβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Hβ“˜ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
Hβ“˜ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Hβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
Hβ“˜ Fluor-liddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
LiLithium
Liβ“˜ BityiteCaLiAl2(AlBeSi2O10)(OH)2
Liβ“˜ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Liβ“˜ SpodumeneLiAlSi2O6
Liβ“˜ Fluor-liddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
BeBeryllium
Beβ“˜ BityiteCaLiAl2(AlBeSi2O10)(OH)2
Beβ“˜ BerylBe3Al2(Si6O18)
Beβ“˜ PhenakiteBe2SiO4
BBoron
Bβ“˜ DanburiteCaB2Si2O8
Bβ“˜ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Bβ“˜ Axinite-(Mn)Ca2Mn2+Al2BSi4O15(OH)
Bβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Bβ“˜ TourmalineAD3G6 (T6O18)(BO3)3X3Z
Bβ“˜ Fluor-liddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
OOxygen
Oβ“˜ AlbiteNa(AlSi3O8)
Oβ“˜ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Oβ“˜ Microcline var. AmazoniteK(AlSi3O8)
Oβ“˜ AmesiteMg2Al(AlSiO5)(OH)4
Oβ“˜ BityiteCaLiAl2(AlBeSi2O10)(OH)2
Oβ“˜ BerylBe3Al2(Si6O18)
Oβ“˜ Quartz var. CitrineSiO2
Oβ“˜ DanburiteCaB2Si2O8
Oβ“˜ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Oβ“˜ Columbite-(Fe)Fe2+Nb2O6
Oβ“˜ Axinite-(Mn)Ca2Mn2+Al2BSi4O15(OH)
Oβ“˜ MicroclineK(AlSi3O8)
Oβ“˜ MonaziteREE(PO4)
Oβ“˜ PhenakiteBe2SiO4
Oβ“˜ Pyrochlore GroupA2Nb2(O,OH)6Z
Oβ“˜ QuartzSiO2
Oβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Oβ“˜ SpessartineMn32+Al2(SiO4)3
Oβ“˜ SpodumeneLiAlSi2O6
Oβ“˜ TourmalineAD3G6 (T6O18)(BO3)3X3Z
Oβ“˜ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
Oβ“˜ ZirconZr(SiO4)
Oβ“˜ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Oβ“˜ Chevkinite-(Ce)Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2
Oβ“˜ Albite var. CleavelanditeNa(AlSi3O8)
Oβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
Oβ“˜ Fluor-liddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
FFluorine
Fβ“˜ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
Fβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
Fβ“˜ Fluor-liddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
NaSodium
Naβ“˜ AlbiteNa(AlSi3O8)
Naβ“˜ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Naβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Naβ“˜ Albite var. CleavelanditeNa(AlSi3O8)
MgMagnesium
Mgβ“˜ AmesiteMg2Al(AlSiO5)(OH)4
AlAluminium
Alβ“˜ AlbiteNa(AlSi3O8)
Alβ“˜ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Alβ“˜ Microcline var. AmazoniteK(AlSi3O8)
Alβ“˜ AmesiteMg2Al(AlSiO5)(OH)4
Alβ“˜ BityiteCaLiAl2(AlBeSi2O10)(OH)2
Alβ“˜ BerylBe3Al2(Si6O18)
Alβ“˜ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Alβ“˜ Axinite-(Mn)Ca2Mn2+Al2BSi4O15(OH)
Alβ“˜ MicroclineK(AlSi3O8)
Alβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Alβ“˜ SpessartineMn32+Al2(SiO4)3
Alβ“˜ SpodumeneLiAlSi2O6
Alβ“˜ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Alβ“˜ Albite var. CleavelanditeNa(AlSi3O8)
Alβ“˜ Fluor-liddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
SiSilicon
Siβ“˜ AlbiteNa(AlSi3O8)
Siβ“˜ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Siβ“˜ Microcline var. AmazoniteK(AlSi3O8)
Siβ“˜ AmesiteMg2Al(AlSiO5)(OH)4
Siβ“˜ BityiteCaLiAl2(AlBeSi2O10)(OH)2
Siβ“˜ BerylBe3Al2(Si6O18)
Siβ“˜ Quartz var. CitrineSiO2
Siβ“˜ DanburiteCaB2Si2O8
Siβ“˜ ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
Siβ“˜ Axinite-(Mn)Ca2Mn2+Al2BSi4O15(OH)
Siβ“˜ MicroclineK(AlSi3O8)
Siβ“˜ PhenakiteBe2SiO4
Siβ“˜ QuartzSiO2
Siβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Siβ“˜ SpessartineMn32+Al2(SiO4)3
Siβ“˜ SpodumeneLiAlSi2O6
Siβ“˜ ZirconZr(SiO4)
Siβ“˜ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Siβ“˜ Chevkinite-(Ce)Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2
Siβ“˜ Albite var. CleavelanditeNa(AlSi3O8)
Siβ“˜ Fluor-liddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
PPhosphorus
Pβ“˜ MonaziteREE(PO4)
Pβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
ClChlorine
Clβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kβ“˜ Microcline var. AmazoniteK(AlSi3O8)
Kβ“˜ MicroclineK(AlSi3O8)
CaCalcium
Caβ“˜ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Caβ“˜ BityiteCaLiAl2(AlBeSi2O10)(OH)2
Caβ“˜ DanburiteCaB2Si2O8
Caβ“˜ Axinite-(Mn)Ca2Mn2+Al2BSi4O15(OH)
Caβ“˜ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
Caβ“˜ Zoisite(CaCa)(AlAlAl)O[Si2O7][SiO4](OH)
Caβ“˜ ApatiteCa5(PO4)3(Cl/F/OH)
Caβ“˜ Fluor-liddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
TiTitanium
Tiβ“˜ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
Tiβ“˜ Chevkinite-(Ce)Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2
MnManganese
Mnβ“˜ Axinite-(Mn)Ca2Mn2+Al2BSi4O15(OH)
Mnβ“˜ SpessartineMn32+Al2(SiO4)3
FeIron
Feβ“˜ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Feβ“˜ Columbite-(Fe)Fe2+Nb2O6
Feβ“˜ SchorlNaFe32+Al6(Si6O18)(BO3)3(OH)3(OH)
Feβ“˜ Chevkinite-(Ce)Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2
ZrZirconium
Zrβ“˜ ZirconZr(SiO4)
NbNiobium
Nbβ“˜ Columbite-(Fe)Fe2+Nb2O6
Nbβ“˜ Pyrochlore GroupA2Nb2(O,OH)6Z
Nbβ“˜ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
CeCerium
Ceβ“˜ Allanite-(Ce)(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Ceβ“˜ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
Ceβ“˜ Chevkinite-(Ce)Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2
TaTantalum
Taβ“˜ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)
UUranium
Uβ“˜ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977)(Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F)

Other Regions, Features and Areas containing this locality

Madagascar
Somali PlateTectonic Plate

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