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Vantasselite

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René Van Tassel
Formula:
Al4(PO4)3(OH)3 · 9H2O
Colour:
White
Lustre:
Pearly
Hardness:
2 - 2½
Crystal System:
Orthorhombic
Name:
Named after Professor René Van Tassel (May 11th, 1916, Antwerp, Belgium - March 20th, 2013, Mortsel, Belgium), a mineralogist at the Royal Belgian Institute of Natural Sciences.

Vantasselite Group. Structurally similar to vashégyite and matulaite.


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Classification of VantasseliteHide

Approved
Approval Year:
1986
8.DC.37

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
C : With only medium-sized cations, (OH, etc.):RO4 = 1:1 and < 2:1
42.12.1.1

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
12 : (AB)4(XO4)3Zq·xH2O
19.7.10

19 : Phosphates
7 : Phosphates of Al alone

Physical Properties of VantasseliteHide

Pearly
Colour:
White
Hardness:
2 - 2½ on Mohs scale

Optical Data of VantasseliteHide

Type:
Biaxial (-)
RI values:
nα = 1.511 - 1.511 nβ = 1.560 nγ = 1.578
2V:
Measured: 61° , Calculated: 60°
Max Birefringence:
δ = 0.067
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low
Dispersion:
strong

Chemical Properties of VantasseliteHide

Formula:
Al4(PO4)3(OH)3 · 9H2O

Crystallography of VantasseliteHide

Crystal System:
Orthorhombic
Cell Parameters:
a = 10.52 Å, b = 16.54 Å, c = 20.37 Å
Ratio:
a:b:c = 0.636 : 1 : 1.232
Unit Cell V:
3,544.40 ų (Calculated from Unit Cell)

Type Occurrence of VantasseliteHide

General Appearance of Type Material:
Millimetric rosettes of tin-white transparent lamellae on metapelitic dump material.

Synonyms of VantasseliteHide

Other Language Names for VantasseliteHide

Common AssociatesHide

Associated Minerals Based on Photo Data:
Variscite5 photos of Vantasselite associated with Variscite on mindat.org.
Cacoxenite3 photos of Vantasselite associated with Cacoxenite on mindat.org.
Wavellite1 photo of Vantasselite associated with Wavellite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

8.DC.05NissoniteCu2Mg2(PO4)2(OH)2 · 5H2OMon.
8.DC.07EuchroiteCu2(AsO4)(OH) · 3H2OOrth. 2 2 2 : P21 21 21
8.DC.10LegranditeZn2(AsO4)(OH) · H2OMon. 2/m : P21/b
8.DC.12StrashimiriteCu8(AsO4)4(OH)4 · 5H2OMon.
8.DC.15ArthuriteCuFe3+2(AsO4)2(OH)2 · 4H2OMon.
8.DC.15EarlshannoniteMn2+Fe3+2(PO4)2(OH)2 · 4H2OMon.
8.DC.15OjuelaiteZnFe3+2(AsO4)2(OH)2 · 4H2OMon.
8.DC.15WhitmoreiteFe2+Fe3+2(PO4)2(OH)2 · 4H2OMon. 2/m : P21/b
8.DC.15Cobaltarthurite(Co,Mg)Fe3+2(AsO4)2(OH)2 · 4H2OMon. 2/m : P21/b
8.DC.15BendadaiteFe2+Fe3+2(AsO4)2(OH)2 · 4H2OMon. 2/m : P21/b
8.DC.15KunatiteCuFe3+2(PO4)2(OH)2 · 4H2OMon. 2/m : P21/b
8.DC.15UKI-2006-(PO:FeHZn)ZnFe3+2(PO4)2(OH)2 · 4H2OMon.
8.DC.15UKI-2006-(PO:AlCuFeH)Fe2+Al3+2(PO4)2(OH)2 · 4H2O
8.DC.17KleemaniteZnAl2(PO4)2(OH)2 · 3H2OMon.
8.DC.20BermaniteMn2+Mn3+2(PO4)2(OH)2 · 4H2OMon. 2/m : P2/b
8.DC.20CoralloiteMn2+Mn3+2(AsO4)2(OH)2 · 4H2OTric. 1 : P1
8.DC.22KovdorskiteMg2(PO4)(OH) · 3H2OMon.
8.DC.25FerristrunziteFe3+Fe3+2(PO4)2(OH)3 · 5H2OTric.
8.DC.25FerrostrunziteFe2+Fe3+2(PO4)2(OH)2 · 6H2OTric.
8.DC.25MetavauxiteFe2+Al2(PO4)2(OH)2 · 8H2OMon. 2/m : P21/b
8.DC.25MetavivianiteFe2+Fe3+2(PO4)2(OH)2 · 6H2OTric. 1 : P1
8.DC.25StrunziteMn2+Fe3+2(PO4)2(OH)2 · 6H2OTric. 1 : P1
8.DC.27BerauniteFe2+Fe3+5(PO4)4(OH)5 · 6H2OMon. 2/m : B2/b
8.DC.30GordoniteMgAl2(PO4)2(OH)2 · 8H2OTric. 1 : P1
8.DC.30LaueiteMn2+Fe3+2(PO4)2(OH)2 · 8H2OTric. 1 : P1
8.DC.30MangangordoniteMn2+Al2(PO4)2(OH)2 · 8H2OTric.
8.DC.30ParavauxiteFe2+Al2(PO4)2(OH)2 · 8H2OTric. 1 : P1
8.DC.30PseudolaueiteMn2+Fe3+2(PO4)2(OH)2 · 8H2OMon. 2/m : P21/b
8.DC.30SigloiteFe3+Al2(PO4)2(OH)3 · 7H2OTric.
8.DC.30StewartiteMn2+Fe3+2(PO4)2(OH)2 · 8H2OTric. 1 : P1
8.DC.30UshkoviteMgFe3+2(PO4)2(OH)2 · 8H2OTric.
8.DC.30FerrolaueiteFe2+Fe3+2(PO4)2(OH)2 · 8H2OTric. 1 : P1
8.DC.30Kastningite(Mn2+,Fe2+,Mg)Al2(PO4)2(OH)2 · 8H2OTric. 1 : P1
8.DC.30MaghrebiteMgAl2(AsO4)2(OH)2 · 8H2OTric. 1 : P1
8.DC.30NordgauiteMnAl2(PO4)2(F,OH)2 · 5H2OTric. 1 : P1
8.DC.32TinticiteFe3+5.34(PO4)3.62(VO4)0.38(OH)4 · 6.7H2OTric. 1 : P1
8.DC.35VauxiteFe2+Al2(PO4)2(OH)2 · 6H2OTric. 1 : P1
8.DC.40CacoxeniteFe3+24Al(PO4)17O6(OH)12 · 17H2OHex. 6/m : P63/m
8.DC.45Gormanite(Fe2+,Mg)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2OTric.
8.DC.45Souzalite(Mg,Fe2+)3(Al,Fe3+)4(PO4)4(OH)6 · 2H2OTric.
8.DC.47KingiteAl3(PO4)2F2(OH) · 7H2OTric.
8.DC.50WavelliteAl3(PO4)2(OH,F)3 · 5H2OOrth. mmm (2/m 2/m 2/m)
8.DC.50AllanpringiteFe3+3(PO4)2(OH)3 · 5H2OMon. 2/m : P21/m
8.DC.52KribergiteAl5(PO4)3(SO4)(OH)4 · 4H2OTric. 1 : P1
8.DC.55MapimiteZn2Fe3+3(AsO4)3(OH)4 · 10H2OMon.
8.DC.57OgdensburgiteCa2Fe3+4(Zn,Mn2+)(AsO4)4(OH)6 · 6H2OOrth. mmm (2/m 2/m 2/m) : Cmmm
8.DC.60Nevadaite(Cu2+,Al,V3+)6Al8(PO4)8F8(OH)2 · 22H2OOrth. mmm (2/m 2/m 2/m)
8.DC.60CloncurryiteCu0.5(VO)0.5Al2(PO4)2F2 · 5H2OMon. 2/m : P21/b

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

19.7.1BerliniteAlPO4Trig. 3 2 : P31 2 1
19.7.2AugeliteAl2(PO4)(OH)3Mon. 2/m : B2/m
19.7.3TrolleiteAl4(PO4)3(OH)3Mon. 2/m : B2/b
19.7.4SenegaliteAl2(PO4)(OH)(OH)2 · H2OOrth. mm2
19.7.5VarisciteAlPO4 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pbca
19.7.6MetavarisciteAlPO4 · 2H2OMon. 2/m : P21/b
19.7.7BolivariteAl2(PO4)(OH)3 · 4-5H2OAmor.
19.7.8WavelliteAl3(PO4)2(OH,F)3 · 5H2OOrth. mmm (2/m 2/m 2/m)
19.7.9EvansiteAl3(PO4)(OH)6 · 6H2OAmor.
19.7.11KingiteAl3(PO4)2F2(OH) · 7H2OTric.
19.7.12VashegyiteAl11(PO4)9(OH)6 · 38H2OOrth. mmm (2/m 2/m 2/m)

Other InformationHide

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 VantasseliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Fransolet, A.-M. (1987) La Vantasselite, une nouvelle espèce minérale du Massif de Stavelot, Belgique. Bulletin Minéralogique, 110, 647-656.
American Mineralogist (1988): 73: 931.

Internet Links for VantasseliteHide

Localities for VantasseliteHide

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.
Belgium (TL)
 
  • Luxembourg Province
    • Stavelot Massif
      • Vielsalm
Bull.Min.(1987) 110, 647-656; J.W. Anthony, R.A. Bideaux, K.W. Bladh, M.C. Nichols: Handbook of Mineralogy, Vol. IV (2000); Daltry, Vaughn & Deliens, Michel (1994) The Type Mineralogy of Belgium . Annals of the Belgium Geological Society 116:15-28
A. Van Herreweghe collection
Germany
 
  • Hesse
    • Wetzlar
      • Weilburg
        • Essershausen
Blaß, G. (2002): Eine neue Phosphatmineralien-Paragenese von der Grube Mark bei Essershausen, mittleres Lahngebiet, Taunus. Mineralien-Welt, 13 (6), 18-43. (in German)
  • North Rhine-Westphalia
    • Sauerland
      • Meschede
        • Bestwig
Wittern: "Mineralfundorte in Deutschland", 2001
  • Rhineland-Palatinate
    • Taunus
      • Katzenelnbogen
https://www.mineralienatlas.de/lexikon/index.php/Deutschland/Rheinland-Pfalz/Rhein-Lahn-Kreis/Katzenelnbogen/Grube%20Zollhaus
Japan
 
  • Honshu Island
    • Kinki region
      • Mie Prefecture
Inaba & Minakawa (1996) Chigaku Kenkyu, 44, 199-203.
Mineral and/or Locality  
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