Estatoby (Antanetinilapa), Sahatany Valley, Ibity, Antsirabe II District, Vakinankaratra, Madagascari
| Regional Level Types | |
|---|---|
| Estatoby (Antanetinilapa) | Pegmatite |
| Sahatany Valley | Valley |
| Ibity | Commune |
| Antsirabe II District | Rural District |
| Vakinankaratra | Region |
| Madagascar | Country |
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):
Type:
Köppen climate type:
Nearest Settlements:
| Place | Population | Distance |
|---|---|---|
| Antsirabe | 186,253 (2018) | 22.8km |
| Betafo | 29,785 (2018) | 27.2km |
| Soanindrariny | 21,000 (2018) | 34.0km |
| Fandriana | 31,437 (2018) | 48.8km |
| Ambatofinandrahana | 25,997 (2018) | 57.3km |
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 ElementsCommodity 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 DiagramDetailed Mineral List:
| ⓘ Albite Formula: Na(AlSi3O8) |
| ⓘ Albite var. Cleavelandite Formula: Na(AlSi3O8) |
| ⓘ Allanite-(Ce) Formula: (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| ⓘ Amesite Formula: Mg2Al(AlSiO5)(OH)4 |
| ⓘ 'Apatite' Formula: Ca5(PO4)3(Cl/F/OH) References: |
| ⓘ Axinite-(Mn) Formula: Ca2Mn2+Al2BSi4O15(OH) Description: Knut Edvard Larsen collection, identified by XRD at MGM, Oslo 1998. |
| ⓘ Beryl Formula: Be3Al2(Si6O18) Colour: green |
| ✪ Bityite Formula: CaLiAl2(AlBeSi2O10)(OH)2 Habit: pseudohexagonal barrelshaped polysyntetic twin crystals (to 5mm long) Colour: colorless, sometimes with a tint of pale yellow References: |
| ⓘ Formula: Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2 Description: Samples labelled "chevkinite-(Ce) has been showed to be allanite-(Ce). See Larsen (2003) |
| ⓘ Columbite-(Fe) Formula: Fe2+Nb2O6 |
| ⓘ 'Columbite-(Mn)-Tantalite-(Mn) Series' References: |
| ⓘ Danburite Formula: CaB2Si2O8 Habit: small mm-sized pseudocubic xls & as ortorhombic prismatic xls Colour: white, colorless,yellow References: |
| ⓘ Elbaite Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| ⓘ 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) |
| ⓘ 'Lepidolite' |
| ⓘ Microcline Formula: K(AlSi3O8) |
| ⓘ Microcline var. Amazonite Formula: K(AlSi3O8) References: |
| ⓘ 'Monazite Group' Formula: REE(PO4) |
| ⓘ Phenakite Formula: Be2SiO4 |
| ⓘ '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. |
| ⓘ '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. |
| ⓘ 'Pyrochlore Supergroup' Formula: A2-mD2X6-wZ1-n |
| ⓘ Quartz Formula: SiO2 |
| ⓘ Quartz var. Citrine Formula: SiO2 |
| ⓘ Schorl Formula: NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
| ⓘ Spessartine Formula: Mn2+3Al2(SiO4)3 |
| ⓘ Spodumene Formula: LiAlSi2O6 References: |
| ⓘ 'Tourmaline' Formula: AD3G6(T6O18)(BO3)3X3Z |
| ⓘ Zircon Formula: Zr(SiO4) References: |
| ⓘ Zoisite Formula: (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) References: |
Gallery:
List of minerals arranged by Strunz 10th Edition classification
| Group 4 - Oxides and Hydroxides | |||
|---|---|---|---|
| ⓘ | 'Pyrochlore Group' | 4.00. | A2Nb2(O,OH)6Z |
| ⓘ | 'var. Uranpyrochlore (of Hogarth 1977)' | 4.00. | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
| ⓘ | Quartz var. Citrine | 4.DA.05 | SiO2 |
| ⓘ | 4.DA.05 | SiO2 | |
| ⓘ | Columbite-(Fe) | 4.DB.35 | Fe2+Nb2O6 |
| Group 9 - Silicates | |||
| ⓘ | Phenakite | 9.AA.05 | Be2SiO4 |
| ⓘ | Spessartine | 9.AD.25 | Mn2+3Al2(SiO4)3 |
| ⓘ | Zircon | 9.AD.30 | Zr(SiO4) |
| ⓘ | Axinite-(Mn) | 9.BD.20 | Ca2Mn2+Al2BSi4O15(OH) |
| ⓘ | Chevkinite-(Ce) ? | 9.BE.70 | Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2 |
| ⓘ | Allanite-(Ce) | 9.BG.05b | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| ⓘ | Zoisite | 9.BG.10 | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| ⓘ | Beryl | 9.CJ.05 | Be3Al2(Si6O18) |
| ⓘ | Elbaite | 9.CK.05 | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| ⓘ | Schorl | 9.CK.05 | NaFe2+3Al6(Si6O18)(BO3)3(OH)3(OH) |
| ⓘ | Fluor-liddicoatite | 9.CK.05 | Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3F |
| ⓘ | Spodumene | 9.DA.30 | LiAlSi2O6 |
| ⓘ | Bityite | 9.EC.35 | CaLiAl2(AlBeSi2O10)(OH)2 |
| ⓘ | Amesite | 9.ED.15 | Mg2Al(AlSiO5)(OH)4 |
| ⓘ | Microcline var. Amazonite | 9.FA.30 | K(AlSi3O8) |
| ⓘ | 9.FA.30 | K(AlSi3O8) | |
| ⓘ | Albite | 9.FA.35 | Na(AlSi3O8) |
| ⓘ | var. Cleavelandite | 9.FA.35 | Na(AlSi3O8) |
| ⓘ | Danburite | 9.FA.65 | CaB2Si2O8 |
| Unclassified | |||
| ⓘ | 'Lepidolite' | - | |
| ⓘ | 'Monazite Group' | - | REE(PO4) |
| ⓘ | 'Tourmaline' | - | AD3G6(T6O18)(BO3)3X3Z |
| ⓘ | 'Pyrochlore Supergroup' | - | A2-mD2X6-wZ1-n |
| ⓘ | 'Apatite' | - | Ca5(PO4)3(Cl/F/OH) |
| ⓘ | 'Columbite-(Mn)-Tantalite-(Mn) Series' | - | |
List of minerals for each chemical element
| H | Hydrogen | |
|---|---|---|
| H | ⓘ Allanite-(Ce) | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| H | ⓘ Amesite | Mg2Al(AlSiO5)(OH)4 |
| H | ⓘ Bityite | CaLiAl2(AlBeSi2O10)(OH)2 |
| H | ⓘ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| H | ⓘ Axinite-(Mn) | Ca2Mn2+Al2BSi4O15(OH) |
| H | ⓘ Pyrochlore Group | A2Nb2(O,OH)6Z |
| H | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| H | ⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
| H | ⓘ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| H | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| H | ⓘ Fluor-liddicoatite | Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3F |
| Li | Lithium | |
| Li | ⓘ Bityite | CaLiAl2(AlBeSi2O10)(OH)2 |
| Li | ⓘ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Li | ⓘ Spodumene | LiAlSi2O6 |
| Li | ⓘ Fluor-liddicoatite | Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3F |
| Be | Beryllium | |
| Be | ⓘ Bityite | CaLiAl2(AlBeSi2O10)(OH)2 |
| Be | ⓘ Beryl | Be3Al2(Si6O18) |
| Be | ⓘ Phenakite | Be2SiO4 |
| B | Boron | |
| B | ⓘ Danburite | CaB2Si2O8 |
| B | ⓘ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| B | ⓘ Axinite-(Mn) | Ca2Mn2+Al2BSi4O15(OH) |
| B | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| B | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| B | ⓘ Fluor-liddicoatite | Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3F |
| O | Oxygen | |
| O | ⓘ Albite | Na(AlSi3O8) |
| O | ⓘ Allanite-(Ce) | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| O | ⓘ Microcline var. Amazonite | K(AlSi3O8) |
| O | ⓘ Amesite | Mg2Al(AlSiO5)(OH)4 |
| O | ⓘ Bityite | CaLiAl2(AlBeSi2O10)(OH)2 |
| O | ⓘ Beryl | Be3Al2(Si6O18) |
| O | ⓘ Quartz var. Citrine | SiO2 |
| O | ⓘ Danburite | CaB2Si2O8 |
| O | ⓘ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | ⓘ Columbite-(Fe) | Fe2+Nb2O6 |
| O | ⓘ Axinite-(Mn) | Ca2Mn2+Al2BSi4O15(OH) |
| O | ⓘ Microcline | K(AlSi3O8) |
| O | ⓘ Monazite Group | REE(PO4) |
| O | ⓘ Phenakite | Be2SiO4 |
| O | ⓘ Pyrochlore Group | A2Nb2(O,OH)6Z |
| O | ⓘ Quartz | SiO2 |
| O | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| O | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
| O | ⓘ Spodumene | LiAlSi2O6 |
| O | ⓘ Tourmaline | AD3G6(T6O18)(BO3)3X3Z |
| O | ⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
| O | ⓘ Zircon | Zr(SiO4) |
| O | ⓘ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| O | ⓘ Chevkinite-(Ce) | Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2 |
| O | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| O | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| O | ⓘ Fluor-liddicoatite | Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3F |
| F | Fluorine | |
| F | ⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
| F | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| F | ⓘ Fluor-liddicoatite | Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3F |
| Na | Sodium | |
| Na | ⓘ Albite | Na(AlSi3O8) |
| Na | ⓘ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Na | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Na | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| Mg | Magnesium | |
| Mg | ⓘ Amesite | Mg2Al(AlSiO5)(OH)4 |
| Al | Aluminium | |
| Al | ⓘ Albite | Na(AlSi3O8) |
| Al | ⓘ Allanite-(Ce) | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| Al | ⓘ Microcline var. Amazonite | K(AlSi3O8) |
| Al | ⓘ Amesite | Mg2Al(AlSiO5)(OH)4 |
| Al | ⓘ Bityite | CaLiAl2(AlBeSi2O10)(OH)2 |
| Al | ⓘ Beryl | Be3Al2(Si6O18) |
| Al | ⓘ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Al | ⓘ Axinite-(Mn) | Ca2Mn2+Al2BSi4O15(OH) |
| Al | ⓘ Microcline | K(AlSi3O8) |
| Al | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Al | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
| Al | ⓘ Spodumene | LiAlSi2O6 |
| Al | ⓘ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| Al | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| Al | ⓘ Fluor-liddicoatite | Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3F |
| Si | Silicon | |
| Si | ⓘ Albite | Na(AlSi3O8) |
| Si | ⓘ Allanite-(Ce) | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| Si | ⓘ Microcline var. Amazonite | K(AlSi3O8) |
| Si | ⓘ Amesite | Mg2Al(AlSiO5)(OH)4 |
| Si | ⓘ Bityite | CaLiAl2(AlBeSi2O10)(OH)2 |
| Si | ⓘ Beryl | Be3Al2(Si6O18) |
| Si | ⓘ Quartz var. Citrine | SiO2 |
| Si | ⓘ Danburite | CaB2Si2O8 |
| Si | ⓘ Elbaite | Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | ⓘ Axinite-(Mn) | Ca2Mn2+Al2BSi4O15(OH) |
| Si | ⓘ Microcline | K(AlSi3O8) |
| Si | ⓘ Phenakite | Be2SiO4 |
| Si | ⓘ Quartz | SiO2 |
| Si | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Si | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
| Si | ⓘ Spodumene | LiAlSi2O6 |
| Si | ⓘ Zircon | Zr(SiO4) |
| Si | ⓘ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| Si | ⓘ Chevkinite-(Ce) | Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2 |
| Si | ⓘ Albite var. Cleavelandite | Na(AlSi3O8) |
| Si | ⓘ Fluor-liddicoatite | Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3F |
| P | Phosphorus | |
| P | ⓘ Monazite Group | REE(PO4) |
| P | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Cl | Chlorine | |
| Cl | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| K | Potassium | |
| K | ⓘ Microcline var. Amazonite | K(AlSi3O8) |
| K | ⓘ Microcline | K(AlSi3O8) |
| Ca | Calcium | |
| Ca | ⓘ Allanite-(Ce) | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Bityite | CaLiAl2(AlBeSi2O10)(OH)2 |
| Ca | ⓘ Danburite | CaB2Si2O8 |
| Ca | ⓘ Axinite-(Mn) | Ca2Mn2+Al2BSi4O15(OH) |
| Ca | ⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
| Ca | ⓘ Zoisite | (CaCa)(AlAlAl)O[Si2O7][SiO4](OH) |
| Ca | ⓘ Apatite | Ca5(PO4)3(Cl/F/OH) |
| Ca | ⓘ Fluor-liddicoatite | Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3F |
| Ti | Titanium | |
| Ti | ⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
| Ti | ⓘ Chevkinite-(Ce) | Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2 |
| Mn | Manganese | |
| Mn | ⓘ Axinite-(Mn) | Ca2Mn2+Al2BSi4O15(OH) |
| Mn | ⓘ Spessartine | Mn32+Al2(SiO4)3 |
| Fe | Iron | |
| Fe | ⓘ Allanite-(Ce) | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| Fe | ⓘ Columbite-(Fe) | Fe2+Nb2O6 |
| Fe | ⓘ Schorl | NaFe32+Al6(Si6O18)(BO3)3(OH)3(OH) |
| Fe | ⓘ Chevkinite-(Ce) | Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2 |
| Zr | Zirconium | |
| Zr | ⓘ Zircon | Zr(SiO4) |
| Nb | Niobium | |
| Nb | ⓘ Columbite-(Fe) | Fe2+Nb2O6 |
| Nb | ⓘ Pyrochlore Group | A2Nb2(O,OH)6Z |
| Nb | ⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
| Ce | Cerium | |
| Ce | ⓘ Allanite-(Ce) | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| Ce | ⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
| Ce | ⓘ Chevkinite-(Ce) | Ce4(Ti,Fe2+,Fe3+)5O8(Si2O7)2 |
| Ta | Tantalum | |
| Ta | ⓘ Pyrochlore Group var. Uranpyrochlore (of Hogarth 1977) | (Ca,U,Ce)2(Nb,Ti,Ta)2O6(OH,F) |
| U | Uranium | |
| U | ⓘ 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
AfricaContinent
African Plate
- Antenanarivo BlockOrogenic Belt
Madagascar
- Ankaratra Volcanic RangeVolcanic Range
- ⭔Antananarivo ProvinceProvince
- Sahatany Pegmatite Field (Mt Ibity area)Pegmatite Field
Somali PlateTectonic Plate
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References
Lefevre, Marc, Thomas, Laurent (1998) Les pegmatites de la vallée de la Sahatany Madagascar. Le Règne Minéral, 4 (19) Les Éditions du Piat. 15-28locality spelled erronously as Antanety ny Ilapa
Estatoby, Sahatany Valley, Ibity, Antsirabe II District, Vakinankaratra, Madagascar