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Anthoinite

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Formula:
AlWO3(OH)3
Colour:
White (when free of iron)
Lustre:
Dull
Hardness:
1
Specific Gravity:
4.78 - 4.87
Crystal System:
Triclinic
Name:
For Raymond Anthoine (Charleroi, Hainaut province, Belgium, May 12 1888 - Brussels, June 4 1971), Belgian mining engineer who wrote on prospecting of alluvial deposits.
This page provides mineralogical data about Anthoinite.


Hide all sections | Show all sections

Classification of AnthoiniteHide

Approved, 'Grandfathered' (first described prior to 1959)
7.GB.35

7 : SULFATES (selenates, tellurates, chromates, molybdates, wolframates)
G : Molybdates, Wolframates and Niobates
B : With additional anions and/or H2O
48.3.3.1

48 : ANHYDROUS MOLYBDATES AND TUNGSTATES
3 : Basic Anhydrous Molybdates and Tungstates
27.4.4

27 : Sulphites, Chromates, Molybdates and Tungstates
4 : Tungstates

Physical Properties of AnthoiniteHide

Transparency:
Translucent
Colour:
White (when free of iron)
Streak:
White
Hardness:
Cleavage:
Perfect
On one direction.
Density:
4.78 - 4.87 g/cm3 (Measured)    4.84 g/cm3 (Calculated)

Optical Data of AnthoiniteHide

Type:
Biaxial
RI values:
n = 1.81 - 1.82
Birefringence:
noted under high magnification
Max Birefringence:
δ = 0.000
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Dispersion:
r > v
Comments:
Measured 2V not determined.

Chemical Properties of AnthoiniteHide

Formula:
AlWO3(OH)3

Crystallography of AnthoiniteHide

Crystal System:
Triclinic
Class (H-M):
1 - Pinacoidal
Cell Parameters:
a = 8.196(1) Å, b = 9.187(1) Å, c = 11.316(1) Å
α = 92.82(1)°, β = 94.08(1)°, γ = 90.23(1)°
Ratio:
a:b:c = 0.892 : 1 : 1.232
Unit Cell V:
848.84 ų (Calculated from Unit Cell)
Z:
8
Morphology:
Crystals platy, flattened on {010}. Commonly as powdery or chalky masses and as pseudomorphs after large scheelite crystals.
Comment:
Space-group setting I-1.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.63 (100)
4.19 (83)
3.058 (71)
3.97 (69)
2.462 (61)
4.33 (37)
4.12 (35)
Comments:
Material from Nyamulilo Mine, Uganda; sample shows preferred orientation

Type Occurrence of AnthoiniteHide

General Appearance of Type Material:
powdery to chalky masses, and pseudomorphs after large scheelite crystals; as platy crystals to a few mm
Place of Conservation of Type Material:
Royal Museum for Central Africa, Tervuren, Belgium (No. 2.426)
Geological Setting of Type Material:
Sn-W placers, W-bearing quartz veins
Associated Minerals at Type Locality:

Other Language Names for AnthoiniteHide

German:Anthoinit
Simplified Chinese:水钨铝矿
Spanish:Anthoinita

Common AssociatesHide

Associated Minerals Based on Photo Data:
Ferritungstite2 photos of Anthoinite associated with Ferritungstite on mindat.org.
Reinite2 photos of Anthoinite associated with Reinite on mindat.org.
Cassiterite1 photo of Anthoinite associated with Cassiterite on mindat.org.
Mpororoite1 photo of Anthoinite associated with Mpororoite on mindat.org.
Hydrokenoelsmoreite1 photo of Anthoinite associated with Hydrokenoelsmoreite on mindat.org.
Ferberite1 photo of Anthoinite associated with Ferberite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

7.GB.05LindgreniteCu3(MoO4)2(OH)2Mon. 2/m : P21/m
7.GB.10SzenicsiteCu3(MoO4)(OH)4Orth.
7.GB.15CuprotungstiteCu2(WO4)(OH)2Tet. 4 2 2 : P41 21 2
7.GB.15UM1999-38-WO:CrV(V, Cr, W, O, H) [V:Cr:W ratio about 2:1:3]
7.GB.20Phyllotungstite(H2O,M)x(W,Fe)(O,OH)3 · yH2O (M = Ca, Cs, Pb or K)Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
7.GB.25RankachiteCa0.5(V4+,V5+)(W6+,Fe3+)2O8(OH) · 2H2OMon. 2/m : P21/m
7.GB.30FerrimolybditeFe2(MoO4)3 · nH2OOrth. mmm (2/m 2/m 2/m) : Pmmn
7.GB.35MpororoiteWAlO3(OH)3 · 2(H2O)
7.GB.40Obradovicite-KCu[K2(H2O)17Cu(H2O)6][Mo8As2Fe3+3O34(OH)3]Orth. mmm (2/m 2/m 2/m) : Pmna
7.GB.45Mendozavilite-NaFe[Na2(H2O)15Fe3+(H2O)6][Mo8P2Fe3+3O35(OH)2]Mon. 2/m : B2/m
7.GB.45ParamendozaviliteNaAl4Fe7(PO4)5(PMo12O40)(OH)16 · 56H2OMon.
7.GB.50Tancaite-(Ce)FeCe(MoO4)3·3H2O Trig. 3 : R3

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

27.4.1CuprotungstiteCu2(WO4)(OH)2Tet. 4 2 2 : P41 21 2
27.4.2ScheeliteCa(WO4)Tet. 4/m : I41/a
27.4.5MpororoiteWAlO3(OH)3 · 2(H2O)
27.4.6Yttrotungstite-(Y)YW2O6(OH)3
27.4.7Yttrotungstite-(Ce)(Ce,Nd,Y)W2O6(OH)3Mon. 2 : P21
27.4.8StolzitePb(WO4)Tet. 4/m : I41/a
27.4.9RaspitePb(WO4)Mon. 2/m : P21/b
27.4.10RusselliteBi2WO6Orth.
27.4.11PinalitePb3WO5Cl2Orth.
27.4.12Uranotungstite(Fe2+,Ba,Pb)(UO2)2(WO4)(OH)4 · 12H2OOrth.
27.4.13HübneriteMnWO4Mon. 2/m : P2/b
27.4.14FerberiteFeWO4Mon. 2/m : P2/b
27.4.15Wolframite(Fe2+)WO4 to (Mn2+)WO4Mon. 2/m : P2/b
27.4.16FerritungstiteIso. m3m (4/m 3 2/m) : Fd3m
27.4.17Phyllotungstite(H2O,M)x(W,Fe)(O,OH)3 · yH2O (M = Ca, Cs, Pb or K)Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
27.4.18Qitianlingite(Fe,Mn)2(Nb,Ta)2WO10Orth.

Other InformationHide

Notes:
Slowly attacked by HCl and HNO3; readily soluble in strong KOH solution.

Forms pseudomorphs after Scheelite crystals.
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 AnthoiniteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Varlamoff, N. (1947) Anthoinite, nouveau tungstate hydraté d'alumine. Annales de la Société géologique de Belgique, Liége, Bulletin: 70: B153.
Fleischer, M. (1948) New mineral names. American Mineralogist: 33: 384-386.
Palache, C., Berman, H., Frondel, C. (1951) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged, 1124 pp.: 1097-1098.
Niggli, E., Jäger, E. (1957) Untersuchungen an Anthoinit. Neues Jahrbuch für Mineralogie, Abhandlungen: 91: 35-40. [in German]
Fleischer, M. (1958) New mineral names. American Mineralogist: 43: 378-387.
Sahama, T.G., von Knorring, O., Lehtinen, M. (1970) New data for anthoinite. Bulletin of the Geological Society of Finland: 42: 95-99.
Sahama, T.G. (1981) The secondary tungsten minerals, a review. Mineralogical Record: 12: 81-87.
Matsubara, S., Kato, A., Nagashima, K. (1984) Mpororoite and anthoinite from the Kara mine, Tasmania. Mineralogical Magazine: 48: 397-400.
Dunn, P.J., Ferraiolo, J.A., Fleischer, M., Gobel, V., Grice, J.D., Langley, R.H., Shigley, J.E., Vanko, D.A., Zilczer, J.A. (1985) New mineral names. American Mineralogist: 70: 1329-1335.
Anthony, J.W., Bideaux, R.A., Bladh, K.W., Nichols, M.C. (1997) Handbook of Mineralogy, Volume III. Halides, Hydroxides, Oxides. Mineral Data Publishing, Tucson, AZ, 628pp.: 17.
Grey, I.E., Madsen, I.C., Mills, S.J., Hatert, F., Paterson, V., Bastow, T.J. (2010) A new type of cubic-stacked layer structure in anthoinite, AlWO3(OH)3. American Mineralogist: 95(4): 639–645.
Shimobayashi, N., Ohnishi, M., Tsuruta, K. (2012) Secondary tungsten minerals in quartz veins in the Ishidera area, Wazuka, Kyoto Prefecture, Japan: anthoinite, mpororoite, and Fe-free hydrokenoelsmoreite. Journal of Mineralogical and Petrological Sciences: 107: 33-38.

Internet Links for AnthoiniteHide

Localities for AnthoiniteHide

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.
Australia
 
  • Tasmania
    • Burnie City
      • Hampshire district
        • Kara Mines
Whitehead, 1990; Ralph Bottrill 6/10/2005.; MINERALOGICAL MAGAZINE, SEPTEMBER 1984, VOL. 48, PP. 397-400
Canada
 
  • Yukon
    • Mayo Mining District
      • Mayo
        • Kalzas Mt
J. W. Anthony et al.: Handbook of Mineralogy, Vol. 3 (1997), 17; T. S. Ercit and G. W. Robinson (1994) A refinement of the structure of ferritungstite from Kalzas Mountain, Yukon, and observations on the tungsten pyrochlores. Can Mineral 32:567-574
Democratic Republic of Congo (Zaïre)
 
  • Kivu
J. W. Anthony et al.: Handbook of Mineralogy, Vol. 3 (1997), 17
  • Maniema
Handbook of Mineralogy; http://euromin.w3sites.net/Nouveau_site/gisements/congo/GISCONe.htm
Henri Buttgenbach (1947) Les minéraux de Belgique et du Congo belge
Varlamoff, N (1947): Anthoinite, nouveau tungstate hydraté d'alumine. Annales de la Societé géologique de Belgique, 70, B153-B166; Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 1098.
Japan
 
  • Honshu Island
    • Kinki Region
      • Kyoto Prefecture
        • Sohraku-gun
          • Wazuka-cho
SHIMOBAYASHI, N., OHNISHI, M., and TSURUTA, K. (2012) Secondary tungsten minerals in quartz veins in the Ishidera area, Wazuka, Kyoto Prefecture, Japan: anthoinite, mpororoite, and Fe-free hydrokenoelsmoreite. Journal of Mineralogical and Petrological Sciences, 107, No. 1 (February), 33-38.
Rwanda
 
  • Kigali City Province
    • Kigali
De Clercq et al., 2008. The tungsten mineralisation at Nyakabingo and Gifurwe (Rwanda): Preliminary results. Geologica Belgica, 11:251-258
  • Northern Province
J. W. Anthony et al.: Handbook of Mineralogy, Vol. 3 (1997), 17; MINERALOGICAL MAGAZINE, SEPTEMBER 1984, VOL. 48, PP. 397-400
    • Burera district
Lapis 16(9), 12 (1991)
    • Cyeru Commune
      • Gifurwe sector
J. W. Anthony et al.: "Handbook of Mineralogy", Vol.3 (1997), 11; Geol. Belg. 11 (2008) 251-258.
Uganda
 
  • Western Region
    • Kabale District
J. W. Anthony et al.: Handbook of Mineralogy, Vol. 3, (1997), 17
    • Kigezi District
J. W. Anthony et al.: "Handbook of Mineralogy", Vol.3 (1997), 11
J. W. Anthony et al.: "Handbook of Mineralogy", Vol.3 (1997), 11; MINERALOGICAL MAGAZINE, SEPTEMBER 1984, VOL. 48, PP. 397-400
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