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Anjanabonoina pegmatites, Ambohimanambola, Betafo, Vakinankaratra, Madagascari
Regional Level Types
Anjanabonoina pegmatitesPegmatite Field
AmbohimanambolaCommune
BetafoDistrict
VakinankaratraRegion
MadagascarCountry

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Latitude & Longitude (WGS84):
19° 55' 15'' South , 46° 31' 42'' East
Latitude & Longitude (decimal):
Locality type:
Other Languages:
Malagasy:
Anjanabonoina, Kaominin' Ambohimanambola, Distrikan'i Betafo, Vakinankaratra, Madagasikara


The Anjanabonoina pegmatites are famous for their large and multicolored tourmalines. Located 42 km WSW of the town of Betafo in the central highland of Madagascar.

These pegmatite dikes outcrop at a hill (with an elevation of about 1,400 meters) 2,5 km east of Mount Ikaka and are emplaced in a complex environment characterized by paragneiss, marble, and orthogneiss of the Neoproterozoic Itremo Group, of medium metamorphic grade. The subhorizontal bodies of pegmatite are strongly zoned. The metasedimentary rocks hosting the pegmatitic dikes locally show extensive contact-metasomatic phenomena. Abundant tourmalization extensively affected schist and quartzite units, with schorl-dravite replacing up to 30% of the rock volume. Veins of quartz, dravite-schorl, and danburite are locally present in metasedimentary rocks close to the pegmatites, and marble is transformed into skarn (De Vito et al. 2006).

- Locality mispelled as "Anjanabonsana" in Lacroix (1909).

Regions containing this locality

Somali Plate (Somalia Plate)Tectonic Plate
Antananarivo Province, MadagascarProvince (Abolished)

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Standard Detailed Strunz Dana Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

27 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!

Rock list contains entries from the region specified including sub-localities

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Alphabetical List Tree Diagram

Detailed Mineral List:

Albite
Formula: Na(AlSi3O8)
Albite var: Cleavelandite
Formula: Na(AlSi3O8)
Reference: Wilson, W.E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200
Annite
Formula: KFe2+3(AlSi3O10)(OH)2
Colour: Black
Description: Occurs in large plates.
Reference: De Vito et al (2006): Nb-Ti-Ta oxides in the gem-mineralized and "hybrid" Anjanabonoina granitic pegmatite, central Madagascar: A record of magmatic and postmagmatic events. Canadian Mineralogist. 44: 87-103.; De Vito, C., Pezzotta, F., Ferrini, V., and Aurisicchio, C. (2006): Nb-Ti-Ta oxides in the gem-mineralized and "hybrid" Anjanabonoina granitic pegmatite, central Madagascar: A record of magmatic and postmagmatic events. Canadian Mineralogist 44, 87-103.
Bertrandite
Formula: Be4(Si2O7)(OH)2
Reference: Knut Edvard Larsen collection # MM-1563 ( Identified by xrd at Natural History Museum, Oslo)
Beryl
Formula: Be3Al2(Si6O18)
Habit: crystals flattened on c, often without prism faces
Colour: colorless to pink-rose
Description: Cesium-rich
Reference: Wilson, W.E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200
Beryl var: Alkali-beryl
Formula: Be3Al2(Si6O18)
Reference: Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. 624p [p.554-556]
Beryl var: Morganite
Formula: Be3Al2(Si6O18)
Reference: Wilson, W. E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200
Bismite
Formula: Bi2O3
Reference: Behier, J. (1960): Contribution á la Minéralogie de Madagascar. Annales Géologiques de Madagascar XXIX, Tananarive, p 21
Bismuth
Formula: Bi
Habit: small cleavable masses
Reference: Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris, p.156; Wilson, W. E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200
Chrysoberyl
Formula: BeAl2O4
Reference: Pezzotta, F. (1999): Madagaskar- Da Paradies der Mineralien und Edelsteine. Extra Lapis 17. 56-59
'Columbite-(Fe)-Columbite-(Mn) Series'
Reference: Wilson, W.E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200
Danburite
Formula: CaB2Si2O8
Reference: Wilson, W.E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200
Dravite
Formula: Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: Pezzotta F., Pagano R., 2005. Madagascar. Breve storia della ricerca mineralogica. Riv. Mineral. Ital., 30, 2: 76-86
'Dravite-Schorl Series'
Reference: De Vito et al (2006): Nb-Ti-Ta oxides in the gem-mineralized and "hybrid" Anjanabonoina granitic pegmatite, central Madagascar: A record of magmatic and postmagmatic events. Canadian Mineralogist. 44: 87-103.
'Elbaite-Liddicoatite Series'
Reference: Dirlam, D.M., Laurs, B.M., Pezzotta, F., and Simmons, W.B. (2002): Liddicoatite tourmaline from Anjanabonoina, Madagascar. Gems and Gemology: 38: 28-52
Fersmite
Formula: (Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6
Reference: Pezzotta, F. (1999): Madagaskar- Da Paradies der Mineralien und Edelsteine. Extra Lapis 17. 56-59
Feruvite ?
Formula: Ca(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3(OH)
Description: No published analysis or other information. Samples visually identical to samples sold as feruvite in mineral shows has showed to be dravite.(K.E.Larsen commment des 2011)
Reference: Gunnar Färber, Samswegen, 2005
Fluor-elbaite
Formula: Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3F
Reference: Ertl, A., Hughes, J. M., Prowatke, S., Ludwig, T., Prasad, P. S. R., Brandstätter, F., Körner, W., Schuster, R., Pertlik, F. and Marschall, H. (2006): Tetrahedrally coordinated boron in tourmalines from the liddicoatite-elbaite series from Madagascar: Structure, chemistry, and infrared spectroscopic studies. Am. Mineral. 91, 1847-1856. [F-dominant]
Fluor-liddicoatite
Formula: Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
Reference: Ertl, A., Hughes, J. M., Prowatke, S., Ludwig, T., Prasad, P. S. R., Brandstätter, F., Körner, W., Schuster, R., Pertlik, F. and Marschall, H. (2006): Tetrahedrally coordinated boron in tourmalines from the liddicoatite-elbaite series from Madagascar: Structure, chemistry, and infrared spectroscopic studies. Am. Mineral. 91, 1847-1856. [F-dominant]; Lussier, A. J., Abdu, Y., Hawthorne, F. C., Michaelis, V. K., Aguiar, P. M. and Kroeker, S. (2011): Oscillatory zoned liddicoatite from Anjanabonoina, central Madagascar. I. Crystal chemistry and structure by SREF and 11B and 27Al MAS NMR spectroscopy. Can. Mineral. 49, 63-88. [F-dominant]
Gibbsite
Formula: Al(OH)3
Reference: Wilson, W.E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200
Hambergite
Formula: Be2(BO3)(OH)
Habit: faces: (010), (100), prism (310)
Description: First described from Anjanabonoina by Lacroix (1909).
Reference: Lacroix, A. (1909): Sur la hambergite de Madagascar. Bulletin de la Société française de Minéralogie, Paris. 32, 320-324; Wilson, W.E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200 Min. Record 20 (1989), p 191-200/
'K Feldspar'
Reference: De Vito, C., Pezzotta, F., Ferrini, V., and Aurisicchio, C. (2006): Nb-Ti-Ta oxides in the gem-mineralized and "hybrid" Anjanabonoina granitic pegmatite, central Madagascar: A record of magmatic and postmagmatic events. Canadian Mineralogist 44, 87-103.
'Lepidolite'
Reference: Wilson, W.E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200
'Liddicoatite' ?
Formula: Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Description: characteristically zoned
Reference: Wilson, W.E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200; Dirlam, D.M., Laurs, B.M., Pezzotta, F., and Simmons, W.B. (2002): Liddicoatite tourmaline from Anjanabonoina, Madagascar. Gems and Gemology: 38: 28-52
Magnetite
Formula: Fe2+Fe3+2O4
Reference: Wilson, W.E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200
Microcline
Formula: K(AlSi3O8)
Reference: Wilson, W.E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200
Microcline var: Amazonite
Formula: K(AlSi3O8)
Reference: Lacroix, A. (1922): Mineralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. A.Challamel (Éditeur), Paris. 624p (p.566)
'Microlite Group'
Formula: A2-mTa2X6-wZ-n
Reference: De Vito et al (2006): Nb-Ti-Ta oxides in the gem-mineralized and "hybrid" Anjanabonoina granitic pegmatite, central Madagascar: A record of magmatic and postmagmatic events. Canadian Mineralogist. 44: 87-103.
Muscovite
Formula: KAl2(AlSi3O10)(OH)2
Reference: Van King
Phenakite
Formula: Be2SiO4
Description: Wilson (1984) mentions a find of a pocket with danburite and phenakite. About 50 crystals of clear, colorless, prismatic phenakite from 5mm wide and, 15 cm long to 2,5 cm wide and 8 cm long were mined.
Reference: Wilson, W.E. (1984): What's new in Minerals ? Munich show 1983. Mineralogical Record 15: 118; Wilson, W. E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200
'Pyrochlore Group'
Formula: A2Nb2(O,OH)6Z
Description: first-generation, homogeneous = > uranoan pyrochlore
Reference: De Vito et al (2006): Nb-Ti-Ta oxides in the gem-mineralized and "hybrid" Anjanabonoina granitic pegmatite, central Madagascar: A record of magmatic and postmagmatic events. Canadian Mineralogist. 44: 87-103.
'Pyrochlore Supergroup'
Formula: A2-mD2X6-wZ1-n
Description: Pezzotta (1999) mentions octahedral crystals with a composition in the range pyrochlore-betafite
Reference: Pezzotta, F. (1999): Madagaskar- Da Paradies der Mineralien und Edelsteine. Extra Lapis 17. 56-59
'Pyrochlore Supergroup var: Betafite (of Hogarth 1977)'
Formula: A2-mD2X6-wZ1+w
Reference: De Vito et al (2006): Nb-Ti-Ta oxides in the gem-mineralized and "hybrid" Anjanabonoina granitic pegmatite, central Madagascar: A record of magmatic and postmagmatic events. Canadian Mineralogist. 44: 87-103.
Quartz
Formula: SiO2
Reference: Wilson, W. E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200
Quartz var: Rutilated Quartz
Formula: SiO2
Description: Known locally as "cheveux de Venus" (hair of Venus)
Reference: Wilson, W.E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200
Quartz var: Smoky Quartz
Formula: SiO2
Reference: Wilson, W. E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200
'Rubellite'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Wilson, W.E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200
Rutile
Formula: TiO2
Description: Rutilated crystals as inclusions in quartz ( "cheveux de Venus" (Hair of Venus))
Reference: Wilson, W. E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200
Spessartine
Formula: Mn2+3Al2(SiO4)3
Reference: Wilson, W. E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200
Spodumene
Formula: LiAlSi2O6
Reference: Wilson, W. E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200
Topaz
Formula: Al2(SiO4)(F,OH)2
Reference: Wilson, W. E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Wilson, W. E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200
'Tourmaline var: Achroite'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Wilson, W.E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200
Vermiculite
Formula: Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Reference: De Vito, C., Pezzotta, F., Ferrini, V., and Aurisicchio, C. (2006): Nb-Ti-Ta oxides in the gem-mineralized and "hybrid" Anjanabonoina granitic pegmatite, central Madagascar: A record of magmatic and postmagmatic events. Canadian Mineralogist 44, 87-103.
Xenotime-(Y)
Formula: Y(PO4)
Habit: Blocky
Colour: colorless
Description: Found as inclusions in elbaite-liddicoatite
Reference: Dirlam, D.M., Laurs, B.M., Pezzotta, F., and Simmons, W.B. (2002): Liddicoatite tourmaline from Anjanabonoina, Madagascar. Gems and Gemology: 38: 28-52
'Zinnwaldite'
Reference: Wilson, W. E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200
Zircon
Formula: Zr(SiO4)
Reference: Pezzotta, F. (1999): Madagaskar- Da Paradies der Mineralien und Edelsteine. Extra Lapis 17. 56-59

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Bismuth1.CA.05Bi
Group 4 - Oxides and Hydroxides
Bismite4.CB.60Bi2O3
Chrysoberyl4.BA.05BeAl2O4
Fersmite4.DG.05(Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6
Gibbsite4.FE.10Al(OH)3
Magnetite4.BB.05Fe2+Fe3+2O4
'Microlite Group'4.00.A2-mTa2X6-wZ-n
'Pyrochlore Group'4.00.A2Nb2(O,OH)6Z
Quartz4.DA.05SiO2
var: Rutilated Quartz4.DA.05SiO2
var: Smoky Quartz4.DA.05SiO2
Rutile4.DB.05TiO2
Group 6 - Borates
Hambergite6.AB.05Be2(BO3)(OH)
Group 8 - Phosphates, Arsenates and Vanadates
Xenotime-(Y)8.AD.35Y(PO4)
Group 9 - Silicates
Albite9.FA.35Na(AlSi3O8)
var: Cleavelandite9.FA.35Na(AlSi3O8)
Annite9.EC.20KFe2+3(AlSi3O10)(OH)2
Bertrandite9.BD.05Be4(Si2O7)(OH)2
Beryl9.CJ.05Be3Al2(Si6O18)
var: Alkali-beryl9.CJ.05Be3Al2(Si6O18)
var: Morganite9.CJ.05Be3Al2(Si6O18)
Danburite9.FA.65CaB2Si2O8
Dravite9.CK.05Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Feruvite ?9.CK.05Ca(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3(OH)
Fluor-elbaite9.CK.05Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3F
Fluor-liddicoatite9.CK.05Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
'Liddicoatite' ?9.CK.05Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Microcline9.FA.30K(AlSi3O8)
var: Amazonite9.FA.30K(AlSi3O8)
Muscovite9.EC.15KAl2(AlSi3O10)(OH)2
Phenakite9.AA.05Be2SiO4
Spessartine9.AD.25Mn2+3Al2(SiO4)3
Spodumene9.DA.30LiAlSi2O6
Topaz9.AF.35Al2(SiO4)(F,OH)2
Vermiculite9.EC.50Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Zircon9.AD.30Zr(SiO4)
Unclassified Minerals, Rocks, etc.
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Dravite-Schorl Series'-
'Elbaite-Liddicoatite Series'-
'K Feldspar'-
'Lepidolite'-
'Pyrochlore Supergroup'-A2-mD2X6-wZ1-n
'var: Betafite (of Hogarth 1977)'-A2-mD2X6-wZ1+w
'Rubellite'-A(D3)G6(T6O18)(BO3)3X3Z
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z
'var: Achroite'-A(D3)G6(T6O18)(BO3)3X3Z
'Zinnwaldite'-

List of minerals arranged by Dana 8th Edition classification

Group 1 - NATIVE ELEMENTS AND ALLOYS
Semi-metals and non-metals
Bismuth1.3.1.4Bi
Group 4 - SIMPLE OXIDES
A2X3
Bismite4.3.10.2Bi2O3
AX2
Rutile4.4.1.1TiO2
Group 6 - HYDROXIDES AND OXIDES CONTAINING HYDROXYL
X(OH)3
Gibbsite6.3.1.1Al(OH)3
Group 7 - MULTIPLE OXIDES
AB2X4
Chrysoberyl7.2.9.1BeAl2O4
Magnetite7.2.2.3Fe2+Fe3+2O4
Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
A2B2O6(O,OH,F)
'Microlite Group'8.2.2.1A2-mTa2X6-wZ-n
'Pyrochlore Group'8.2.1.1A2Nb2(O,OH)6Z
'Pyrochlore Supergroup
var: Betafite (of Hogarth 1977)'
8.2.3.1A2-mD2X6-wZ1+w
AB2O6
Fersmite8.3.3.1(Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6
Group 25 - ANHYDROUS BORATES CONTAINING HYDROXYL OR HALOGEN
Monoborates
Hambergite25.1.1.1Be2(BO3)(OH)
Group 51 - NESOSILICATES Insular SiO4 Groups Only
Insular SiO4 Groups Only with cations in [4] coordination
Phenakite51.1.1.1Be2SiO4
Insular SiO4 Groups Only with cations in [6] and >[6] coordination
Spessartine51.4.3a.3Mn2+3Al2(SiO4)3
Insular SiO4 Groups Only with cations in >[6] coordination
Zircon51.5.2.1Zr(SiO4)
Group 52 - NESOSILICATES Insular SiO4 Groups and O,OH,F,H2O
Insular SiO4 Groups and O, OH, F, and H2O with cations in [6] coordination only
Topaz52.3.1.1Al2(SiO4)(F,OH)2
Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
Si2O7 Groups and O, OH, F, and H2O with cations in [4] coordination
Bertrandite56.1.1.1Be4(Si2O7)(OH)2
Si2O7 Groups and O, OH, F, and H2O with[Si2O7] with borate groups
Danburite56.3.1.1CaB2Si2O8
Group 61 - CYCLOSILICATES Six-Membered Rings
Six-Membered Rings with [Si6O18] rings; possible (OH) and Al substitution
Beryl61.1.1.1Be3Al2(Si6O18)
Six-Membered Rings with borate groups
Dravite61.3.1.9Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Feruvite ?61.3.1.4Ca(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3(OH)
'Liddicoatite' ?61.3.1.2Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Group 65 - INOSILICATES Single-Width,Unbranched Chains,(W=1)
Single-Width Unbranched Chains, W=1 with chains P=2
Spodumene65.1.4.1LiAlSi2O6
Group 71 - PHYLLOSILICATES Sheets of Six-Membered Rings
Sheets of 6-membered rings with 2:1 layers
Annite71.2.2b.3KFe2+3(AlSi3O10)(OH)2
Muscovite71.2.2a.1KAl2(AlSi3O10)(OH)2
Vermiculite71.2.2d.3Mg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Group 75 - TECTOSILICATES Si Tetrahedral Frameworks
Si Tetrahedral Frameworks - SiO2 with [4] coordinated Si
Quartz75.1.3.1SiO2
Group 76 - TECTOSILICATES Al-Si Framework
Al-Si Framework with Al-Si frameworks
Albite76.1.3.1Na(AlSi3O8)
Microcline76.1.1.5K(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
Albite
var: Cleavelandite
-Na(AlSi3O8)
Beryl
var: Alkali-beryl
-Be3Al2(Si6O18)
var: Morganite-Be3Al2(Si6O18)
'Columbite-(Fe)-Columbite-(Mn) Series'-
'Dravite-Schorl Series'-
'Elbaite-Liddicoatite Series'-
Fluor-elbaite-Na(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3F
Fluor-liddicoatite-Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
'K Feldspar'-
'Lepidolite'-
Microcline
var: Amazonite
-K(AlSi3O8)
'Pyrochlore Supergroup'-A2-mD2X6-wZ1-n
Quartz
var: Rutilated Quartz
-SiO2
var: Smoky Quartz-SiO2
'Rubellite'-A(D3)G6(T6O18)(BO3)3X3Z
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z
'var: Achroite'-A(D3)G6(T6O18)(BO3)3X3Z
Xenotime-(Y)-Y(PO4)
'Zinnwaldite'-

List of minerals for each chemical element

HHydrogen
H HambergiteBe2(BO3)(OH)
H GibbsiteAl(OH)3
H TopazAl2(SiO4)(F,OH)2
H Fersmite(Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6
H DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
H Pyrochlore GroupA2Nb2(O,OH)6Z
H AnniteKFe32+(AlSi3O10)(OH)2
H MuscoviteKAl2(AlSi3O10)(OH)2
H Fluor-elbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3F
H Fluor-liddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
H BertranditeBe4(Si2O7)(OH)2
H VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
H LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
H FeruviteCa(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3(OH)
LiLithium
Li SpodumeneLiAlSi2O6
Li Fluor-elbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3F
Li Fluor-liddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
Li LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
BeBeryllium
Be HambergiteBe2(BO3)(OH)
Be BerylBe3Al2(Si6O18)
Be PhenakiteBe2SiO4
Be Beryl (var: Morganite)Be3Al2(Si6O18)
Be ChrysoberylBeAl2O4
Be BertranditeBe4(Si2O7)(OH)2
Be Beryl (var: Alkali-beryl)Be3Al2(Si6O18)
BBoron
B HambergiteBe2(BO3)(OH)
B DanburiteCaB2Si2O8
B RubelliteA(D3)G6(T6O18)(BO3)3X3Z
B DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
B TourmalineA(D3)G6(T6O18)(BO3)3X3Z
B Tourmaline (var: Achroite)A(D3)G6(T6O18)(BO3)3X3Z
B Fluor-elbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3F
B Fluor-liddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
B LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
B FeruviteCa(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3(OH)
OOxygen
O HambergiteBe2(BO3)(OH)
O BerylBe3Al2(Si6O18)
O PhenakiteBe2SiO4
O Albite (var: Cleavelandite)Na(AlSi3O8)
O DanburiteCaB2Si2O8
O GibbsiteAl(OH)3
O MagnetiteFe2+Fe23+O4
O MicroclineK(AlSi3O8)
O QuartzSiO2
O Quartz (var: Rutilated Quartz)SiO2
O Quartz (var: Smoky Quartz)SiO2
O SpessartineMn32+Al2(SiO4)3
O SpodumeneLiAlSi2O6
O TopazAl2(SiO4)(F,OH)2
O RubelliteA(D3)G6(T6O18)(BO3)3X3Z
O RutileTiO2
O Beryl (var: Morganite)Be3Al2(Si6O18)
O BismiteBi2O3
O Microcline (var: Amazonite)K(AlSi3O8)
O Fersmite(Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6
O ZirconZr(SiO4)
O ChrysoberylBeAl2O4
O DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
O Pyrochlore GroupA2Nb2(O,OH)6Z
O AlbiteNa(AlSi3O8)
O AnniteKFe32+(AlSi3O10)(OH)2
O TourmalineA(D3)G6(T6O18)(BO3)3X3Z
O Tourmaline (var: Achroite)A(D3)G6(T6O18)(BO3)3X3Z
O Xenotime-(Y)Y(PO4)
O MuscoviteKAl2(AlSi3O10)(OH)2
O Fluor-elbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3F
O Fluor-liddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
O BertranditeBe4(Si2O7)(OH)2
O Beryl (var: Alkali-beryl)Be3Al2(Si6O18)
O VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
O LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
O FeruviteCa(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3(OH)
FFluorine
F TopazAl2(SiO4)(F,OH)2
F Fersmite(Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6
F Fluor-elbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3F
F Fluor-liddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
NaSodium
Na Albite (var: Cleavelandite)Na(AlSi3O8)
Na Fersmite(Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6
Na DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Na AlbiteNa(AlSi3O8)
Na Fluor-elbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3F
MgMagnesium
Mg DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Mg VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Mg FeruviteCa(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3(OH)
AlAluminium
Al BerylBe3Al2(Si6O18)
Al Albite (var: Cleavelandite)Na(AlSi3O8)
Al GibbsiteAl(OH)3
Al MicroclineK(AlSi3O8)
Al SpessartineMn32+Al2(SiO4)3
Al SpodumeneLiAlSi2O6
Al TopazAl2(SiO4)(F,OH)2
Al Beryl (var: Morganite)Be3Al2(Si6O18)
Al Microcline (var: Amazonite)K(AlSi3O8)
Al ChrysoberylBeAl2O4
Al DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Al AlbiteNa(AlSi3O8)
Al AnniteKFe32+(AlSi3O10)(OH)2
Al MuscoviteKAl2(AlSi3O10)(OH)2
Al Fluor-elbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3F
Al Fluor-liddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
Al Beryl (var: Alkali-beryl)Be3Al2(Si6O18)
Al VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Al LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Al FeruviteCa(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3(OH)
SiSilicon
Si BerylBe3Al2(Si6O18)
Si PhenakiteBe2SiO4
Si Albite (var: Cleavelandite)Na(AlSi3O8)
Si DanburiteCaB2Si2O8
Si MicroclineK(AlSi3O8)
Si QuartzSiO2
Si Quartz (var: Rutilated Quartz)SiO2
Si Quartz (var: Smoky Quartz)SiO2
Si SpessartineMn32+Al2(SiO4)3
Si SpodumeneLiAlSi2O6
Si TopazAl2(SiO4)(F,OH)2
Si Beryl (var: Morganite)Be3Al2(Si6O18)
Si Microcline (var: Amazonite)K(AlSi3O8)
Si ZirconZr(SiO4)
Si DraviteNa(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH)
Si AlbiteNa(AlSi3O8)
Si AnniteKFe32+(AlSi3O10)(OH)2
Si MuscoviteKAl2(AlSi3O10)(OH)2
Si Fluor-elbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3F
Si Fluor-liddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
Si BertranditeBe4(Si2O7)(OH)2
Si Beryl (var: Alkali-beryl)Be3Al2(Si6O18)
Si VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Si LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Si FeruviteCa(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3(OH)
PPhosphorus
P Xenotime-(Y)Y(PO4)
KPotassium
K MicroclineK(AlSi3O8)
K Microcline (var: Amazonite)K(AlSi3O8)
K AnniteKFe32+(AlSi3O10)(OH)2
K MuscoviteKAl2(AlSi3O10)(OH)2
CaCalcium
Ca DanburiteCaB2Si2O8
Ca Fersmite(Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6
Ca Fluor-liddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3F
Ca LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Ca FeruviteCa(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3(OH)
TiTitanium
Ti RutileTiO2
Ti Fersmite(Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6
MnManganese
Mn SpessartineMn32+Al2(SiO4)3
FeIron
Fe MagnetiteFe2+Fe23+O4
Fe AnniteKFe32+(AlSi3O10)(OH)2
Fe VermiculiteMg0.7(Mg,Fe,Al)6(Si,Al)8O20(OH)4 · 8H2O
Fe FeruviteCa(Fe2+)3MgAl5(Si6O18)(BO3)3(OH)3(OH)
YYttrium
Y Xenotime-(Y)Y(PO4)
ZrZirconium
Zr ZirconZr(SiO4)
NbNiobium
Nb Fersmite(Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6
Nb Pyrochlore GroupA2Nb2(O,OH)6Z
CeCerium
Ce Fersmite(Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6
TaTantalum
Ta Fersmite(Ca,Ce,Na)(Nb,Ta,Ti)2(O,OH,F)6
Ta Microlite GroupA2-mTa2X6-wZ-n
BiBismuth
Bi BismuthBi
Bi BismiteBi2O3

References

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Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Lacroix, A. (1908) Les minéraux des filons de pegmatite à tourmaline lithique de Madagascar. Bulletin de la Société Francaise de Minéralogie 31: 218- 247 [with notes on tourmaline from Anjanabonoina].
Lacroix, A. (1909) Sur la hambergite de Madagascar. Bulletin de la Société française de Minéralogie, Paris, 32: 320-324.
Lacroix, A. (1922-23) Minéralogie de Madagascar. Tome I-III, A. Challamel (Éditeur), Paris.
Behier, J. (1963) Carte minéralogique de Madagascar. Archive Service Géologique Madagascar. A 1871.
Switzer, G., Clarke Jr, R.S, Sinkankas, J., and Worthing, H.W. (1965) Fluorine in hambergite. American Mineralogist 50: 85-95 [with analysis on hambergite from Anjanabonoina].
Bancroft, P. (xxxx) Gem & Crystal Treasures. Published by Western Enterprises/Mineralogical Record, 488p. [On Anjanabononia : p. 322-325].
Strunz, H. (1979) Anjanabonoina, Fundort schönster Tourmaline. Lapis 4: 24-27, 47-48.
Wilson, W.E. (1984) What's new in Minerals? Munich show 1983. Mineralogical Record 15: 118 [on a find of phenakite].
Wilson, W.E. (1989) The Anjanabonoina pegmatite, Madagascar. Mineralogical Record 20: 191-200.
Pezzotta, F. (1999) Madagaskar - Das Paradies der Mineralien und Edelsteine. Extra Lapis 17: 56-59 (German version).
De Vito, C., Aurisicchio, C., Ferrini, V., and Pezzotta, F. (2002) Nb-Ta oxides from Anjanabonoina pegmatite. International Mineralogical Association 18th General Meeting (Edinburgh), Program Abstract: 275.
De Vito, C., Aurisicchio, C., Ferrini, V., and Pezzotta, F. (2002) Chemical composition and B, O and H isotopes of tourmaline from Anjanabonoina pegmatite. International Mineralogical Association, 18th General Meeting (Edinburgh), Program Abstract: 208.
Dini, A., Tonarini, S., Pezzotta, F., and De Vito, C. (2002) Boron isotopes study of borates and boro-silicates from Anjanabonoina and Tetezantsio pegmatites (central Madagascar). International Mineralogical Association, 18th General Meeting (Edinburgh), Program Abstract: 210.
Dirlam, D.M., Laurs, B.M., Pezzotta, F., and Simmons, W.B. (2002) Liddicoatite tourmaline from Anjanabonoina, Madagascar. Gems and Gemology 38: 28-52.
De Vito, C., Pezzotta, F., Ferrini, V., and Aurisicchio, C. (2006) Nb-Ti-Ta oxides in the gem-mineralized and "hybrid" Anjanabonoina granitic pegmatite, central Madagascar: A record of magmatic and postmagmatic events. Canadian Mineralogist 44: 87-103.
Ertl, A., Hughes, J.M., Prowatke, S., Ludwig, T., Prasad, P.S.R., Brandstätter, F., Körner, W., Schuster, R., Pertlik, F. and Marschall, H. (2006) Tetrahedrally coordinated boron in tourmalines from the liddicoatite-elbaite series from Madagascar: Structure, chemistry, and infrared spectroscopic studies. American Mineralogist 91: 1847-1856 [both F-dominant].
Lussier, A.J., Abdu, Y., Hawthorne, F.C., Michaelis, V.K., Aguiar, P.M., and Kroeker, S. (2011) Oscillatory zoned liddicoatite from Anjanabonoina, central Madagascar. I. Crystal chemistry and structure by SREF and 11B and 27Al MAS NMR spectroscopy. Canadian Mineralogist 49: 63-88. [F-dominant].
Lussier, A.J. and Hawthorne, F. (2011) Oscillatory zoned liddicoatite from Anjanabonoina, central Madagascar. II. Compositional variation and mecanisms of substitution. Canadian Mineralogist 49: 89-103.

Localities in this Region
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  • Vakinankaratra
    • Betafo

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