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Béhierite

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About BéhieriteHide

07775320014949397343361.jpg
Jean Béhier
Formula:
(Ta5+,Nb5+)(BO4)
Colour:
Greyish pink; pale lilac; colorless to white
Lustre:
Adamantine
Hardness:
7 - 7½
Specific Gravity:
7.86
Crystal System:
Tetragonal
Name:
After Jean Béhier (1903-1965), French mineralogist, Service Géologique, Madagascar, who found the mineral in 1959.
The tantalum analogue of schiavinatoite. The second mineral with essential tantalum and boron after holtite.


Classification of BéhieriteHide

Approved
First Published:
1960
6.AC.15

6 : BORATES
A : Monoborates
C : B(O,OH)4, without and with additional anions; 1(T), 1(T)+OH, etc
24.1.2.1

24 : ANHYDROUS BORATES
1 : A2XO4
9.6.6

9 : Borates
6 : Borates of Ti, Sn and Ta

Physical Properties of BéhieriteHide

Adamantine
Transparency:
Transparent
Colour:
Greyish pink; pale lilac; colorless to white
Streak:
White
Hardness:
7 - 7½ on Mohs scale
Hardness Data:
Measured
Cleavage:
Distinct/Good
{110} and {010}
Fracture:
Sub-Conchoidal
Density:
7.86(5) g/cm3 (Measured)    7.91 g/cm3 (Calculated)

Optical Data of BéhieriteHide

Type:
Uniaxial (+)
Comments:
nω and nε > 2

Chemical Properties of BéhieriteHide

Formula:
(Ta5+,Nb5+)(BO4)
IMA Formula:
Ta(BO4)

Chemical AnalysisHide

Oxide wt%:
 1
Ta2O581.88 %
Nb2O53.19 %
B2O313.70 %
Total:98.77 %
Empirical formulas:
Sample IDEmpirical Formula
1(Ta0.939Nb0.061)1.000B1.000O4.000
Sample references:
IDLocalityReference
1Animikie Red Ace pegmatite, Pine River pegmatites, Fern, Florence Co., Wisconsin, USAFalster, A.U. and Simmons, W. B. (2002) A second world location for behierite in Florence County, Wisconsin, USA. Rocks & Minerals. 77:170

Crystallography of BéhieriteHide

Crystal System:
Tetragonal
Class (H-M):
4/mmm (4/m 2/m 2/m) - Ditetragonal Dipyramidal
Space Group:
I41/amd
Cell Parameters:
a = 6.206(5) Å, c = 5.472(5) Å
Ratio:
a:c = 1 : 0.882
Unit Cell V:
210.75 ų (Calculated from Unit Cell)
Z:
4
Morphology:
Pseudo-octahedral crystals. Forms: {011}

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
4.10 Å(100)
3.10 Å(71)
2.327 Å(71)
2.478 Å(50)
1.600 Å(50)
1.93 Å(35)
Comments:
Very close to schiavinatoite.

Type Occurrence of BéhieriteHide

General Appearance of Type Material:
4 grayish-pink pseudo-octahedral crystals, 0.5 to 7.0 mm in size.
Place of Conservation of Type Material:
National Museum of Natural History, Washington, D.C., USA, 139602.
Geological Setting of Type Material:
A complex LCT granite pegmatite hosted in a marble
Associated Minerals at Type Locality:
Reference:
Mrose M E, Rose H J (1961) Behierite, (Ta,Nb)BO4, a new mineral from Manjaka, Madagascar. Geological Society of America, Abstracts Annual Meetings 1961: 111A-111A

Synonyms of BéhieriteHide

Other Language Names for BéhieriteHide

German:Behierit
Spanish:Behierita

Common AssociatesHide

Associated Minerals Based on Photo Data:
3 photos of Béhierite associated with RubelliteA(D3)G6(T6O18)(BO3)3X3Z
3 photos of Béhierite associated with AlbiteNa(AlSi3O8)
3 photos of Béhierite associated with ElbaiteNa(Li1.5Al1.5)Al6(Si6O18)(BO3)3(OH)3(OH)
3 photos of Béhierite associated with QuartzSiO2
2 photos of Béhierite associated with Rhodizite(K,Cs)Al4Be4(B,Be)12O28
1 photo of Béhierite associated with DanburiteCaB2Si2O8

Related Minerals - Nickel-Strunz GroupingHide

6.AC.05SinhaliteMgAl(BO4)Orth. mmm (2/m 2/m 2/m) : Pnma
6.AC.10PseudosinhaliteMg2Al3(BO3)2(OH)O3Mon.
6.AC.15Schiavinatoite(Nb,Ta)(BO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
6.AC.20FroloviteCa[B(OH)4]2Tric.
6.AC.25HexahydroboriteCa[B(OH)4]2 · 2H2O or CaB2O4 · 6H2OMon. 2/m : B2/b
6.AC.30HenmiliteCa2Cu[B(OH)4]2(OH)4Tric.
6.AC.35BandyliteCu[B(OH)4]ClTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
6.AC.40TeepleiteNa2[B(OH)4]ClTet. 4/mmm (4/m 2/m 2/m) : P4/nmm
6.AC.45Moydite-(Y)Y[B(OH)4](CO3)Orth. mmm (2/m 2/m 2/m) : Pbca
6.AC.50CarboboriteCa2Mg[B(OH)4]2(CO3)2 · 4H2OMon.
6.AC.55SulfoboriteMg3[B(OH)4]2(SO4)(OH,F)2Orth. mm2
6.AC.60LüneburgiteMg3[B2(OH)6](PO4)2 · 6H2OTric.
6.AC.65SeamaniteMn2+3[B(OH)4](PO4)(OH)2Orth. mmm (2/m 2/m 2/m)
6.AC.70CahniteCa2[B(OH)4](AsO4)Tet. 4 : P4

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

9.6.1Warwickite(Mg,Ti,Fe,Cr,Al)2O(BO3)Orth.
9.6.2Azoproite(Mg,Fe2+)2(Fe3+,Ti,Mg)(BO3)O2Orth.
9.6.3NordenskiöldineCaSn4+[BO3]2Trig. 3 : R3
9.6.4Hulsite(Fe2+,Mg)2(Fe3+,Sn)(BO3)O2Mon.
9.6.5Magnesiohulsite(Mg,Fe2+)2(Fe3+,Sn,Mg)(BO3)O2Mon.

Other InformationHide

Notes:
Insoluble in hot or cold acids.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

References for BéhieriteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Behier, J. (1960) Travaux mineralogiques. Republique Malgache, Rapport Annuel du Service Géologique, Tananarive: 181-199.
Fleischer, M. (1961) New mineral names. American Mineralogist: 46: 765-770.
Mrose, M.E., Rose, H.J. (1961) Behierite, (Ta,Nb)BO4, a new mineral from Manjaka, Madagascar. Geological Society of America, Abstracts Annual Meetings 1961, 111A.
Behier, J. (1962) Travaux mineralogiques. Rep. Malgache, Rapport Annuel Service Géologique, Tananarive: 257 pp.
Fleischer, M. (1962) New Mineral Names. American Mineralogist: 47: 414-420.
International Mineralogical Association (1967) Commission on new minerals and mineral names. Mineralogical Magazine: 36: 131-136.
Ranorosoa, N. (1986) Etude minéralogique et microtèrmomiques des pegmatites du champ de la Sahatany. Thèse de Doctorat de l`Université Paul Sabatier, Toulouse. 232 pp.
Range, K.J., Wildenauer, M., Heyns, A.M. (1988) Extrem kurze nichtbindende Sauerstoff-Sauerstoff-abstände: Die Kristallstrukturen von NbBO4, NaNb3O8 und NaTa3O8. Angewandte Chemie: 100: 973-975.
Pezzotta, F. (2001) Schiavinatoit und Behierit aus Madagaskar. Lapis: 10/2001: 47-48.
Falster, A.U. and Simmons, W. B. (2002) A second world location for behierite in Florence County, Wisconsin, USA.  Rocks & Minerals. 77:170
Hålenius, U., Hatert, F., Pasero, M., Mills, S.J. (2015) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) Newsletter 28. New minerals and nomenclature modifications approved in 2015. Mineralogical Magazine: 79: 1859-1864.

Internet Links for BéhieriteHide

Localities for BéhieriteHide

This map shows a selection of localities that have latitude and longitude coordinates recorded. Click on the symbol to view information about a locality. The symbol next to localities in the list can be used to jump to that position on the map.

Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for further information on this occurrence. ? - Indicates mineral may be doubtful at this locality. - Good crystals or important locality for species. - World class for species or very significant. (TL) - Type Locality for a valid mineral species. (FRL) - First Recorded Locality for everything else (eg varieties). Struck out - Mineral was erroneously reported from this locality. Faded * - Never found at this locality but inferred to have existed at some point in the past (eg from pseudomorphs.)

All localities listed without proper references should be considered as questionable.
Madagascar
 
  • Amoron'i Mania
    • Ambositra
      • Sahatsiho Ambohimanjaka
        • Manandona Valley
Falster, A.U. and Simmons, W.B.(2002): A second world location for behierite in Florence county, Wisconsin. Rocks & Minerals may-june 2002
  • Vakinankaratra
    • Antsirabe II
      • Ibity
        • Sahatany Valley
Larsen, K. E. (2003): Mineralene i Sahatany pegmatittfelt, Madagaskar. Norsk Bergverksmuseums Skrift. 25, 5-18; Pezzotta, F.(2007): Ta-Nb borates and other rare accessory phases in granitic pegmatites of the Itremo region, central Madagascar. Norsk Bergverksmuseum Skrift. 35,97-98
Mrose, M.E. & Rose jr, J. (1961): Behierite, (Ta, Nb)BO4, a new mineral from Manjaka, Madagascar. Geol.Soc.Am, Abstracts 1961 Ann. Meetings, p 111A
    • Betafo
      • Andrembesoa
        • Tetezantsio-Andoabatokely Pegmatite Field
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
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
Pezzotta, F.(2007): Ta-Nb borates and other rare accessory phases in granitic pegmatites of the Itremo region, central Madagascar. Norsk Bergverksmuseum Skrift. 35,97-98
      • Anosiarivo Manapa
        • Antsentsindrano
Demartin, F. et al (2001): Schiavinatoite,(Nb,Ta)BO4, the Nb analogue of behierite. European Journal of Mineralogy 13, 159-165
USA
 
  • Wisconsin
    • Florence Co.
      • Fern
Rocks & Min. (2002) 77:170
Falster, A.U. and Simmons, W. B. (2002) A second world location for behierite in Florence County, Wisconsin, USA.  Rocks & Minerals. 77:170
 
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