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Ampanodiana South pegmatite, Tetezantsio-Andoabatokely Pegmatite Field, Andrembesoa, Betafo, Vakinankaratra, Madagascari
Regional Level Types
Ampanodiana South pegmatitePegmatite
Tetezantsio-Andoabatokely Pegmatite FieldPegmatite Field
AndrembesoaCommune
BetafoDistrict
VakinankaratraRegion
MadagascarCountry

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Location is approximate, estimate based on other nearby localities.
 
Latitude & Longitude (WGS84): 20° South , 46° East (est.)
Margin of Error:~1km
Locality type:Pegmatite
Köppen climate type:Cwb : Subtropical highland climate or temperate oceanic climate with dry winters


Pegmatite south of the Tetezantsio pegmatites.

Regions containing this locality

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

Select Mineral List Type

Standard Detailed Strunz Dana Chemical Elements

Mineral List


8 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:

Béhierite
Formula: (Ta5+,Nb5+)(BO4)
Description: Some tens of crystal aggregates < 2cm of Nb-rich behierite and schiavinatoite has been found here. Many of the crystals (aggregates) found is partially altered into behierite-end-member and vigezzite/rynersonite, occasionaly stibiotantalite (Pezzotta 2007)
Reference: Pezzotta, Federico (2007): Ta-Nb borates and other rare accessory phases in granitic pegmatites of the Itremo region, central Madagascar. Bergverksmuseet Skrift 35,97-98
Danburite
Formula: CaB2Si2O8
Reference: Jordi Fabre photo ( On schiavinatoite specimen)
'Liddicoatite' ?
Formula: Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Reference: RRUFF ID: R080064- Not confirmed
Orthoclase
Formula: K(AlSi3O8)
Reference: RRUFF ID: R080064. (on a rynersonite specimen)
Quartz
Formula: SiO2
Reference: RRUFF ID: R080064 ( on a rynersonite specimen)
'Rubellite'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: Robert Bosi photo & specimen, photo id 453778
Rynersonite
Formula: CaTa2O6
Habit: prismatic
Colour: dark gray
Description: As alteration of behierite-schiavinatoite crystals. Identification has been confirmed by single-crystal X-ray diffraction by RRUFF. (RRUFF ID: R080064.2)
Reference: Pezzotta, Federico (2007): Ta-Nb borates and other rare accessory phases in granitic pegmatites of the Itremo region, central Madagascar. Bergverksmuseet Skrift 35,97-98; RRUFF ID: R080064.2
Schiavinatoite
Formula: (Nb,Ta)(BO4)
Description: Some tens of crystal aggregates < 2cm of Nb-rich behierite and schiavinatoite has been found here. Many of the crystals (aggregates) found is partially altered into behierite-end-member and vigezzite/rynersonite, occasionaly stibiotantalite (Pezzotta 2007)
Reference: Pezzotta, Federico (2007): Ta-Nb borates and other rare accessory phases in granitic pegmatites of the Itremo region, central Madagascar. Bergverksmuseet Skrift 35,97-98
Stibiotantalite
Formula: Sb(Ta,Nb)O4
Description: As alteration of behierite-schiavinatoite crystals
Reference: Pezzotta, Federico (2007): Ta-Nb borates and other rare accessory phases in granitic pegmatites of the Itremo region, central Madagascar. Bergverksmuseet Skrift 35,97-98
'Tourmaline'
Formula: A(D3)G6(T6O18)(BO3)3X3Z
Reference: An accessory mineral on phooes from Robert Bosi, Knut Eldjarn and Fabre Minerals;
Vigezzite ?
Formula: (Ca,Ce)(Nb,Ta,Ti)2O6
Description: As alteration of behierite-schiavinatoite crystals
Reference: Pezzotta, Federico (2007): Ta-Nb borates and other rare accessory phases in granitic pegmatites of the Itremo region, central Madagascar. Bergverksmuseet Skrift 35,97-98

List of minerals arranged by Strunz 10th Edition classification

Group 4 - Oxides and Hydroxides
Quartz4.DA.05SiO2
Rynersonite4.DF.05CaTa2O6
Stibiotantalite4.DE.30Sb(Ta,Nb)O4
Vigezzite ?4.DF.05(Ca,Ce)(Nb,Ta,Ti)2O6
Group 6 - Borates
Béhierite6.AC.15(Ta5+,Nb5+)(BO4)
Schiavinatoite6.AC.15(Nb,Ta)(BO4)
Group 9 - Silicates
Danburite9.FA.65CaB2Si2O8
'Liddicoatite' ?9.CK.05Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
Orthoclase9.FA.30K(AlSi3O8)
Unclassified Minerals, Rocks, etc.
'Rubellite'-A(D3)G6(T6O18)(BO3)3X3Z
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals arranged by Dana 8th Edition classification

Group 8 - MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
ABO4
Stibiotantalite8.1.6.2Sb(Ta,Nb)O4
AB2O6
Rynersonite8.3.7.2CaTa2O6
Vigezzite ?8.3.7.1(Ca,Ce)(Nb,Ta,Ti)2O6
Group 24 - ANHYDROUS BORATES
A2XO4
Béhierite24.1.2.1(Ta5+,Nb5+)(BO4)
Group 56 - SOROSILICATES Si2O7 Groups, With Additional O, OH, F and H2O
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 borate groups
'Liddicoatite' ?61.3.1.2Ca(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
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
Orthoclase76.1.1.1K(AlSi3O8)
Unclassified Minerals, Mixtures, etc.
'Rubellite'-A(D3)G6(T6O18)(BO3)3X3Z
Schiavinatoite-(Nb,Ta)(BO4)
'Tourmaline'-A(D3)G6(T6O18)(BO3)3X3Z

List of minerals for each chemical element

HHydrogen
H LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
LiLithium
Li LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
BBoron
B Béhierite(Ta5+,Nb5+)(BO4)
B Schiavinatoite(Nb,Ta)(BO4)
B DanburiteCaB2Si2O8
B TourmalineA(D3)G6(T6O18)(BO3)3X3Z
B RubelliteA(D3)G6(T6O18)(BO3)3X3Z
B LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
OOxygen
O Béhierite(Ta5+,Nb5+)(BO4)
O Schiavinatoite(Nb,Ta)(BO4)
O StibiotantaliteSb(Ta,Nb)O4
O RynersoniteCaTa2O6
O QuartzSiO2
O OrthoclaseK(AlSi3O8)
O DanburiteCaB2Si2O8
O TourmalineA(D3)G6(T6O18)(BO3)3X3Z
O RubelliteA(D3)G6(T6O18)(BO3)3X3Z
O Vigezzite(Ca,Ce)(Nb,Ta,Ti)2O6
O LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
AlAluminium
Al OrthoclaseK(AlSi3O8)
Al LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
SiSilicon
Si QuartzSiO2
Si OrthoclaseK(AlSi3O8)
Si DanburiteCaB2Si2O8
Si LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
KPotassium
K OrthoclaseK(AlSi3O8)
CaCalcium
Ca RynersoniteCaTa2O6
Ca DanburiteCaB2Si2O8
Ca Vigezzite(Ca,Ce)(Nb,Ta,Ti)2O6
Ca LiddicoatiteCa(Li2Al)Al6(Si6O18)(BO3)3(OH)3(OH)
TiTitanium
Ti Vigezzite(Ca,Ce)(Nb,Ta,Ti)2O6
NbNiobium
Nb Schiavinatoite(Nb,Ta)(BO4)
Nb Vigezzite(Ca,Ce)(Nb,Ta,Ti)2O6
SbAntimony
Sb StibiotantaliteSb(Ta,Nb)O4
CeCerium
Ce Vigezzite(Ca,Ce)(Nb,Ta,Ti)2O6
TaTantalum
Ta Béhierite(Ta5+,Nb5+)(BO4)
Ta Schiavinatoite(Nb,Ta)(BO4)
Ta StibiotantaliteSb(Ta,Nb)O4
Ta RynersoniteCaTa2O6
Ta Vigezzite(Ca,Ce)(Nb,Ta,Ti)2O6

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Pezzotta, F. (2007) Ta-Nb borates and other rare accessory phases in granitic pegmatites of the Itremo region, central Madagascar. Bergverksmuseet Skrift 35: 97-98.

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