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Weilerite

A valid IMA mineral species
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Formula:
BaAl3(AsO4)(SO4)(OH)6
Colour:
White
Crystal System:
Hexagonal
Name:
After the type locality, the Michael Mine at Weiler, near Lahr, Black Forest, Germany (but from where it may not in fact exist).
Originally considered a synonym of arsenogorceixite, because the exact sulphate content was unknown. It was redefined in 1987.

An iron(III) analogue is known: Unnamed (Fe-analogue of Weilerite and Ba-analogue of Oberwolfachite).




Hide all sections | Show all sections

Unique IdentifiersHide

Mindat ID:
4258
Long-form identifier:
mindat:1:1:4258:7

Similar NamesHide

WeiliteA valid IMA mineral speciesCa(HAsO4)
WöhleriteA valid IMA mineral species - grandfatheredNa2Ca4ZrNb(Si2O7)2O3F

IMA Classification of WeileriteHide

IMA status:
Approved
IMA status notes:
Redefined by the IMA
IMA Formula:
BaAl3(S6+O4)(As5+O4)(OH)6
Approval year:
1987
First published:
1961
Type description reference:
Walenta, K., Wimmenauer, W. (1961) Der Mineralbestand des Michaelganges im Weiler bei Lahr (Schwarzwald). Jahreshefte des Geologischen Landesamts Baden-Württemberg: 4: 7-37 (in German).

Classification of WeileriteHide

Strunz-mindat (2026):
8.BL.05

8 : PHOSPHATES, ARSENATES, VANADATES
B : Phosphates, etc., with additional anions, without H2O
L : With medium-sized and large cations, (OH, etc.):RO4 = 3:1
Hey's CIM Ref.:
22.3.14

22 : Phosphates, Arsenates or Vanadates with other Anions
3 : Phosphates, arsenates or vanadates with sulphates

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
WlrIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Physical Properties of WeileriteHide

Colour:
White
Streak:
White

Optical Data of WeileriteHide

Type:
Uniaxial

Chemistry of WeileriteHide

Mindat Formula:
BaAl3(AsO4)(SO4)(OH)6
Element Weights:
Element% weight
O40.337 %
Ba24.730 %
Al14.577 %
As13.492 %
S5.774 %
H1.089 %

Calculated from ideal end-member formula.
O
Ba
Al
As
S
H
Elements listed:
Al, As, Ba, H, O, S - search for minerals with similar chemistry

Crystallography of WeileriteHide

Crystal System:
Hexagonal
Cell Parameters:
a = 7.05 Å, c = 15.16 Å
Ratio:
a:c = 1 : 2.15
Unit Cell V:
652.54 ų (Calculated from Unit Cell)
Z:
3
Comment:
Point group n.d.; space group n.d.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.80 Å(8)
2.54 Å(7)
3.01 Å(10)
2.27 Å(5)

Geological EnvironmentHide

Type Occurrence of WeileriteHide

Other Language Names for WeileriteHide

Dutch:Weileriet
German:Weilerit
Spanish:Weilerita

Relationship of Weilerite to other SpeciesHide

Member of:
Beudantite Group > Alunite Supergroup
Other Members of Beudantite Group:
BeudantitePbFe3+3(AsO4)(SO4)(OH)6Trig. 3m(32/m) : R3m
ClouditeBaFe3+3(PO4)(SO4)(OH)6Trig. 3m(32/m) : R3m
CorkitePbFe3+3(PO4)(SO4)(OH)6Trig. 3m(32/m) : R3m
GallobeudantitePbGa3(AsO4)(SO4)(OH)6Trig. 3m : R3m
HidalgoitePbAl3(AsO4)(SO4)(OH)6Trig. 3m : R3m
HinsdalitePbAl3(PO4)(SO4)(OH)6Trig. 3m(32/m) : R3m
KemmlitziteSrAl3(AsO4)(SO4)(OH)6Trig. 3m(32/m) : R3m
OberwolfachiteSrFe3+3(AsO4)(SO4)(OH)6Trig. 3m(32/m) : R3m
SlottaiteSrFe3+3(PO4)(SO4)(OH)6Trig. 3m(32/m) : R3m
SvanbergiteSrAl3(PO4)(SO4)(OH)6Trig. 3m(32/m) : R3m
'UM2011-07-POSO:AlBaH'BaAl3(PO4)(SO4)(OH)6
'Unnamed (Fe-analogue of Weilerite and Ba-analogue of Oberwolfachite)'BaFe3(AsO4)(SO4)(OH)6
WoodhouseiteCaAl3(PO4)(SO4)(OH)6Trig. 3m(32/m) : R3m

Common AssociatesHide

Associations Based on Photo Data:
1 photo of Weilerite associated with CrocoitePbCr6+O4

Related Minerals - Strunz-mindat GroupingHide

8.BL.KiryuiteNaMnAl(PO4)F3Mon. 2/m : P21/m
8.BL.MetaheimitePbCu2(AsO4)(OH)3Mon. 2/m : P21/b
8.BL.Graulichite-(La)LaFe3+3(AsO4)2(OH)6Trig. 3m(32/m) : R3m
8.BL.ClouditeBaFe3+3(PO4)(SO4)(OH)6Trig. 3m(32/m) : R3m
8.BL.OberwolfachiteSrFe3+3(AsO4)(SO4)(OH)6Trig. 3m(32/m) : R3m
8.BL.ArsenobenauiteSrFe3+3(AsO4)(AsO3OH)(OH)6Trig. 3m(32/m) : R3m
8.BL.05GallobeudantitePbGa3(AsO4)(SO4)(OH)6Trig. 3m : R3m
8.BL.05SlottaiteSrFe3+3(PO4)(SO4)(OH)6Trig. 3m(32/m) : R3m
8.BL.05CorkitePbFe3+3(PO4)(SO4)(OH)6Trig. 3m(32/m) : R3m
8.BL.05HidalgoitePbAl3(AsO4)(SO4)(OH)6Trig. 3m : R3m
8.BL.05HinsdalitePbAl3(PO4)(SO4)(OH)6Trig. 3m(32/m) : R3m
8.BL.05'UM2011-07-POSO:AlBaH'BaAl3(PO4)(SO4)(OH)6
8.BL.05KemmlitziteSrAl3(AsO4)(SO4)(OH)6Trig. 3m(32/m) : R3m
8.BL.05BeudantitePbFe3+3(AsO4)(SO4)(OH)6Trig. 3m(32/m) : R3m
8.BL.05WoodhouseiteCaAl3(PO4)(SO4)(OH)6Trig. 3m(32/m) : R3m
8.BL.05SvanbergiteSrAl3(PO4)(SO4)(OH)6Trig. 3m(32/m) : R3m
8.BL.10SegnititePbFe3+3AsO4(AsO3OH)(OH)6Trig. 3m(32/m) : R3m
8.BL.10ArsenogoyaziteSrAl3(AsO4)(AsO3OH)(OH)6Trig. 3m(32/m) : R3m
8.BL.10ArsenogorceixiteBaAl3(AsO4)(AsO3OH)(OH)6Trig. 3m(32/m) : R3m
8.BL.10DussertiteBaFe3+3(AsO4)(AsO3OH)(OH)6Trig. 3m(32/m) : R3m
8.BL.10GalloplumbogummitePb(Ga,Al,Ge)3(PO4)2(OH)6Trig. 3m : R3m
8.BL.10StibiosegnititePb(Fe3+2.5Sb5+0.5)(AsO4)2(OH)6Trig. 3m(32/m) : R3m
8.BL.10 va'Viséite'
8.BL.10ArsenocrandalliteCaAl3(AsO4)(AsO3OH)(OH)6Trig. 3m(32/m)
8.BL.10BenauiteSrFe3+3(PO4)(PO3OH)(OH)6Trig. 3m(32/m) : R3m
8.BL.10PhilipsbornitePbAl3(AsO4)(AsO3OH)(OH)6Trig. 3m(32/m) : R3m
8.BL.10CrandalliteCaAl3(PO4)(PO3OH)(OH)6Trig. 3m(32/m) : R3m
8.BL.10SpringcreekiteBaV3+3(PO4)2(OH,H2O)6Trig. 3m(32/m) : R3m
8.BL.10EylettersiteTh0.75Al3(PO4)2(OH)6Trig. 3m(32/m) : R3m
8.BL.10KintoreitePbFe3(PO4)(PO3OH)(OH)6Trig. 3m(32/m) : R3m
8.BL.10PlumbogummitePbAl3(PO4)(PO3OH)(OH)6Trig. 3m(32/m) : R3m
8.BL.10GorceixiteBaAl3(PO4)(PO3OH)(OH)6Mon. m : Bm
8.BL.10GoyaziteSrAl3(PO4)(PO3OH)(OH)6Trig. 3m(32/m) : R3m
8.BL.13Florencite-(Ce)CeAl3(PO4)2(OH)6Trig. 3m(32/m) : R3m
8.BL.13Florencite-(La)LaAl3(PO4)2(OH)6Trig. 3m(32/m) : R3m
8.BL.13Florencite-(Nd)NdAl3(PO4)2(OH)6Trig. 3m(32/m) : R3m
8.BL.13ZaïriteBiFe3+3(PO4)2(OH)6Trig. 3m(32/m) : R3m
8.BL.13Arsenoflorencite-(La)LaAl3(AsO4)2(OH)6Trig. 3m(32/m) : R3m
8.BL.13'Arsenoflorencite-(Nd)'NdAl3(AsO4)2(OH)6Trig.
8.BL.13'Unnamed (As-analogue of Zaïrite)'(Bi,Pb)Fe3+3(AsO4)2(OH)6
8.BL.13Arsenoflorencite-(Ce)CeAl3(AsO4)2(OH)6Trig. 3m(32/m) : R3m
8.BL.13Graulichite-(Ce)CeFe3+3(AsO4)2(OH)6Trig. 3m(32/m) : R3m
8.BL.13'Arsenowaylandite'BiAl3(AsO4)2(OH)6Trig.
8.BL.13WaylanditeBiAl3(PO4)2(OH)6Trig. 3m(32/m) : R3m
8.BL.13Florencite-(Sm)SmAl3(PO4)2(OH)6Trig. 3m(32/m) : R3m
8.BL.15ViitaniemiiteNa(Ca,Mn2+)Al(PO4)(F,OH)3Mon. 2/m : P21/m
8.BL.25PattersonitePbFe3+3(PO4)2(OH)5 · H2OTric. 1 : P1

Other InformationHide

Notes:
Walenta and Wimmenauer (1961) write: scarcely attacked by HNO3 or HCl, dissolved by hot H2SO4. Walenta (1966) writes: easily soluble in 1:1 HCl, more slowly in 1:1 HNO3.
Health Risks:
No information on health risks for this material has been entered into the database. You should always treat mineral specimens with care.

Internet Links for WeileriteHide

References for WeileriteHide

Localities for WeileriteHide

Showing 5 localities.

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.
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Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Australia
 
  • Tasmania
    • West Coast municipality
      • Zeehan mining district
        • Dundas mineral field
Lancaster +1 other reference
Dominican Republic
 
  • Monte Plata Province
    • Bayaguana District
Torró et al. (2017)
Germany
 
  • Baden-Württemberg
    • Freiburg Region
      • Ortenaukreis
        • Oberwolfach
www.jkrieger.de (2000)
        • Seelbach
          • Seelbach
            • Weiler
www.mindat.org/forum.php?read +3 other references
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
        • Legrena Valley
          • Spitharopoussi mines
Hanke (1998) +1 other reference
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