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Mansfieldite

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About MansfielditeHide

04285940014946379294604.jpg
George R. Mansfield
Formula:
AlAsO4 · 2H2O
Colour:
White, light gray; colourless in transmitted light.
Hardness:
3½ - 4
Specific Gravity:
3.03
Crystal System:
Orthorhombic
Member of:
Name:
After George R. Mansfield (1875-1947 ), American geologist, U.S. Geological Survey.
Mansfieldite-Scorodite Series. The aluminium analogue of Scorodite.


Classification of MansfielditeHide

Approved, 'Grandfathered' (first described prior to 1959)
8.CD.10

8 : PHOSPHATES, ARSENATES, VANADATES
C : Phosphates without additional anions, with H2O
D : With only medium-sized cations, RO4:H2O = 1:2
40.4.1.4

40 : HYDRATED NORMAL PHOSPHATES,ARSENATES AND VANADATES
4 : (AB)5(XO4)2·xH2O
20.4.1

20 : Arsenates (also arsenates with phosphate, but without other anions)
4 : Arsenates of Group III metals (Al, rare earths)

Pronounciation of MansfielditeHide

Pronounciation:
PlayRecorded byCountry
Jolyon & Katya RalphUnited Kingdom

Physical Properties of MansfielditeHide

Transparency:
Transparent
Colour:
White, light gray; colourless in transmitted light.
Hardness:
3½ - 4 on Mohs scale
Cleavage:
Imperfect/Fair
On {201}, imperfect; on {001} and {100} in traces.
Fracture:
Sub-Conchoidal
Density:
3.03 g/cm3 (Measured)    
Comment:
Measured value on Hobart Butte material.

Optical Data of MansfielditeHide

Type:
Biaxial (+)
RI values:
nα = 1.622 - 1.631 nβ = 1.624 - 1.649 nγ = 1.642 - 1.663
2V:
Measured: 30° to 68°, Calculated: 38° to 82°
Max Birefringence:
δ = 0.020 - 0.032
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Moderate
Dispersion:
none

Chemical Properties of MansfielditeHide

Formula:
AlAsO4 · 2H2O
IMA Formula:
Al(AsO4) · 2H2O

Crystallography of MansfielditeHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Pbca
Cell Parameters:
a = 8.8218 Å, b = 9.8252 Å, c = 10.1163 Å
Ratio:
a:b:c = 0.898 : 1 : 1.03
Unit Cell V:
876.8 ų
Morphology:
Porous, cellular masses and crusts of spherulitic fibers.

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
5.45 Å(vvs)
4.36 Å(vvs)
3.97 Å(ms)
3.09 Å(vs)
2.98 Å(s)
2.52 Å(s)
1.627 Å(ms)

Type Occurrence of MansfielditeHide

Other Language Names for MansfielditeHide

Simplified Chinese:砷铝石
Spanish:Mansfieldita
Traditional Chinese:砷鋁石

Varieties of MansfielditeHide

Cobaltian MansfielditeA cobalt-bearing variety of mansfieldite.
Cuprian MansfielditeA copper-bearing variety of Mansfieldite.

Relationship of Mansfieldite to other SpeciesHide

Member of:
Other Members of this group:
ScoroditeFe3+AsO4 · 2H2OOrth. mmm (2/m 2/m 2/m)
StrengiteFePO4 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pbca
VarisciteAlPO4 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pbca
YanomamiteInAsO4 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pbca
Forms a series with:

Common AssociatesHide

Associated Minerals Based on Photo Data:
18 photos of Mansfieldite associated with ErythriteCo3(AsO4)2 · 8H2O
13 photos of Mansfieldite associated with SmolyaninoviteCo3Fe3+2(AsO4)4 · 11H2O
12 photos of Mansfieldite associated with OliveniteCu2(AsO4)(OH)
8 photos of Mansfieldite associated with LavendulanNaCaCu5(AsO4)4Cl · 5H2O
4 photos of Mansfieldite associated with HeterogeniteCo3+O(OH)
3 photos of Mansfieldite associated with ZeuneriteCu(UO2)2(AsO4)2 · 12H2O
3 photos of Mansfieldite associated with RruffiteCa2Cu(AsO4)2 · 2H2O
2 photos of Mansfieldite associated with PharmacosideriteKFe3+4(AsO4)3(OH)4 · 6-7H2O
2 photos of Mansfieldite associated with BariopharmacoalumiteBa0.5Al4(AsO4)3(OH)4 · 4H2O
2 photos of Mansfieldite associated with CyanotrichiteCu4Al2(SO4)(OH)12 · 2H2O

Related Minerals - Nickel-Strunz GroupingHide

8.CD.CastellaroiteMn2+3(AsO4)2·4H2OMon. 2/m
8.CD.05KolbeckiteScPO4 · 2H2OMon. 2/m
8.CD.05MetavarisciteAlPO4 · 2H2OMon. 2/m : P21/b
8.CD.05PhosphosideriteFePO4 · 2H2OMon. 2/m
8.CD.05UM2005-02-AsO:AlHPScSiScAsO4 · 2H2O
8.CD.10ScoroditeFe3+AsO4 · 2H2OOrth. mmm (2/m 2/m 2/m)
8.CD.10StrengiteFePO4 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.CD.10VarisciteAlPO4 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.CD.10YanomamiteInAsO4 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pbca
8.CD.15ParascoroditeFeAsO4 · 2H2OHex. 6/mmm (6/m 2/m 2/m) : P63/mcm
8.CD.20LudlamiteFe2+3(PO4)2 · 4H2OMon. 2/m : P21/b
8.CD.25SterlinghilliteMn2+3(AsO4)2 · 3H2OTric. 1 : P1
8.CD.30RollanditeCu3(AsO4)2 · 4H2OOrth.

Related Minerals - Dana Grouping (8th Ed.)Hide

40.4.1.1VarisciteAlPO4 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pbca
40.4.1.2StrengiteFePO4 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pbca
40.4.1.3ScoroditeFe3+AsO4 · 2H2OOrth. mmm (2/m 2/m 2/m)
40.4.1.5YanomamiteInAsO4 · 2H2OOrth. mmm (2/m 2/m 2/m) : Pbca

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

20.4.2BulachiteAl2(AsO4)(OH)3 · 3H2OOrth.
20.4.3PharmacoalumiteKAl4(AsO4)3(OH)4 · 6.5H2OIso. 4 3m : P4 3m
20.4.4LuetheiteCu2Al2(AsO4)2(OH)4Mon. 2/m : P21/m
20.4.5ArsenogoyaziteSrAl3(AsO4)(AsO3OH)(OH)6Trig. 3m (3 2/m) : R3m
20.4.6ArsenocrandalliteCaAl3(AsO4)(AsO3OH)(OH)6Trig. 3m (3 2/m)
20.4.7Arsenoflorencite-(Ce)CeAl3(AsO4)2(OH)6Trig. 3m (3 2/m) : R3m
20.4.8Arsenoflorencite-(La)LaAl3(AsO4)2(OH)6Trig. 3m (3 2/m) : R3m
20.4.9Arsenoflorencite-(Nd)NdAl3(AsO4)2(OH)6Trig.
20.4.10Gerdtremmelite(Zn,Fe)(Al,Fe)2(AsO4)(OH)5Tric.
20.4.11Gasparite-(Ce)Ce(AsO4)
20.4.12Chernovite-(Y)Y(AsO4)Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
20.4.13Agardite-(Y)YCu6(AsO4)3(OH)6 · 3H2OHex. 6/m : P63/m
20.4.14Agardite-(La)LaCu6(AsO4)3(OH)6 · 3H2OHex. 6/m
20.4.15GoudeyiteAlCu6(AsO4)3(OH)6 · 3H2OHex.
20.4.16Retzian-(Ce)Mn2+2Ce(AsO4)(OH)4Orth. mmm (2/m 2/m 2/m) : Pban
20.4.17Retzian-(La)(Mn2+,Mg)2(La,Ce,Nd)(AsO4)(OH)4Orth. mmm (2/m 2/m 2/m) : Pban
20.4.18Retzian-(Nd)Mn2+2(Nd,Ce,La)(AsO4)(OH)4Orth. mmm (2/m 2/m 2/m) : Pban

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 MansfielditeHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Allen, V.T., Fahey, J.J., Axelrod, J.M. (1948): Mansfieldite, a new arsenate, the aluminum analogue of scorodite, and the mansfieldite-scorodite series. American Mineralogist: 33: 122-134.
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.: 763.
Neues Jahrbuch für Mineralogie, Monatshefte (1963): 79-87.
Harrison, W. T. A. (2000): Synthetic mansfieldite, AlAsO4•2H2O. Acta Crystallogr. C56, e421.

Internet Links for MansfielditeHide

Localities for MansfielditeHide

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.
Algeria
 
  • Guelma Province
    • Guelma
Analyzed by XRD by Dr. Joan Vinals (Barcelona)- Col. Agustin Agudo Espinosa
Australia
 
  • Queensland
    • Cloncurry Shire
      • Selwyn District
Zoppi, M., & Pratesi, G. (2009). Rietveld refinement of a natural cobaltian mansfieldite from synchrotron data. Acta Crystallographica Section E: Structure Reports Online, 65(2), i6-i7.; Day, B. (1998) Collecting in the Spinifex. UK Journal of Mines & Minerals, Vol. 19, pg. 24-27. ; Day, B. and Beyer, B., 1995, Some mines of the Mt Isa district, Queensland; the Mt Cobalt mine. Australian Journal of Mineralogy 1(2): 17-23.
  • Western Australia
    • Ashburton Shire
      • Wyloo Station
Ferguson, K.M. (1999) Lead, Zinc and Silver Deposits of Western Australia. Geological Survey of Western Australia, Mineral Resources Bulletin 15.
Belgium
 
  • Wallonia
    • Luxembourg
      • Vielsalm
        • Grand-Halleux
Loeber, A. (2005). "La carrière de Hourt, Grand Halleux, Province de Luxembourg, Belgique." Magazine du 4M, 26(255), 5-7; Dehove, J. and Hubert, F. (2006). "Nouvelles découvertes à Hourt." Magazine du 4M, 27(263), 9-11.
Chile
 
  • Antofagasta
    • Antofagasta Province
      • Santa Catalina
        • Guanaco (Huanaco)
Ondruš, P., Veselovský, F, Sejkora, J., Skála, R., Pažout, R., Frýda, J., Gabašová, A., Vajdak, J. (2005): Lemanskiite, NaCaCu5(AsO4)4Cl•5H2O, a new mineral species from the Abundancia mine, Chile. Can. Mineral. 44, 523-531.
maurizio dini collection; Clissold, M. E. (2007) Aspects of the Supergene Geochemistry of Copper, Nickel and Bismuth. PhD Thesis University of Sydney, Australia 162pp.
Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 4, 2000
Vincent Bourgoin Collection
  • Atacama
    • Copiapó Province
      • Tierra Amarilla
        • Pampa Larga district
Samples analysed by Dr. Tony Kampf, Curator of LAC Mineralogical Museum, USA; Kampf, A. R., Mills, S. J., Housley, R. M., Rossman, G. R., Nash, B. P., Dini, M., & Jenkins, R. A. (2013). Joteite, Ca2CuAl [AsO4][AsO3 (OH)] 2 (OH) 2· 5H2O, a new arsenate with a sheet structure and unconnected acid arsenate groups. Mineralogical Magazine, 77(6), 2811-2823.
Uwe Kolitsch (powder XRD); T. Djordjević and U. Kolitsch (2008): Conichalcite revisited: Structural and chemical characterisation of a sample from the Maria Catalina mine, Copiapó Province, Chile. Poster, Annual Meeting of the DMG, Berlin, Germany, September 14-17, 2008; CD with abstracts, Abs. no. 331.
    • Huasco Province
      • Freirina
Josef Vajdak (2002) Mineral News, 18, #1, 6.
  • Tarapacá
    • Iquique Province
      • Salar Grande
samples analysed by Anthony Kampf, Curator Emeritus of Mineral Sciences at NHM of LAC, California
China
 
  • Sichuan
    • Ngawa Autonomous Prefecture (Aba Autonomous Prefecture)
      • Zoigê Co. (Ruo'ergai Co.)
http://www.cicresources.com/PDF_REPORTS/Pingding_F1ReportFinal.pdf
Czech Republic
 
  • Karlovy Vary Region
    • Sokolov District
No reference listed
        • Krásno (Schönfeld)
Sejkora, J., Ondruš, P., Fikar, M., Veselovský, F., Mach, Z., Gabašová, A., Skoda, R. & Beran, P. (2006): Supergene minerals at the Huber stock and Schnöd stock deposits, Krásno ore District, the Slavkovský les area, Czech Republic. Journal of the Czech Geological Society 51, 57-101.
France
 
  • Nouvelle-Aquitaine
    • Haute-Vienne
      • Nantiat
        • Vaulry
          • Vaulry Mines
Patrice Queneau Collection
  • Provence-Alpes-Côte d'Azur
    • Var
      • Le Pradet
[UKJMM 2:11-15 "Cap Gronne Secondary Copper and Lead - W.R. van den Berg"]
Germany
 
  • Baden-Württemberg
    • Karlsruhe
      • Calw
        • Calw
Walenta, K. (1963): Mansfieldit von Neubulach im württembergischen Schwarzwald. N. Jb. Mineral. Mh. 1963, 79-87.; American Mineralogist: 67: 854.
  • Rhineland-Palatinate
    • Neuwied
      • Puderbach
Lapis, 9 (9), 31-38.
  • Saxony
    • Mittelsachsen
      • Sayda
Witzke, T. (2012): Neubestimmungen von Fundstellen in Sachsen: Pyracmonit, Philipsbornit, Mottramit, Mansfieldit, Hydrocerussit und weitere. Aufschluss, 63, 295-300.
Greece
 
  • Attica
    • East Attica
      • Lavreotiki
        • Lavrion District Mines
          • Agios Konstantinos [St Constantine] (Kamariza)
            • Kamariza Mines (Kamareza Mines)
              • Hilarion area
Rieck, B., Kolitsch, U., Voudouris, P., Giester, G. and Tzeferis, P. (2018): Weitere Neufunde aus Lavrion, Griechenland. Mineralien-Welt 29 (5), 32-77 (in German).
Iran
 
  • West Azerbaijan Province
    • Takab County
Daliran, F. (2008): The carbonate rock-hosted epithermal gold deposit of Agdarreh, Takab geothermal field, NW Iran—hydrothermal alteration and mineralisation. Mineralium Deposita, 43, 383-404
Italy
 
  • Sardinia
    • Metropolitan City of Cagliari
      • Sarroch
        • Sa Bidda Beccia
Frau, F., Da Pelo, S., (2001): Bulachite, a rare aluminium arsenate from Sardinia, Italy: the second world occurrence. N.Jb. Miner.Mh., Stutgart, 18 - 26 pp
    • South Sardinia Province
      • Fluminimaggiore
Stara, P., Rizzo, R., and Tanca, G.A. [with contributions of Vinci, A., and Astolfi, M.] (1996) Iglesiente e Arburese. Miniere e Minerali. Associazione Mineralogica Sarda, Associazione Mineralogica Domusnovas, Gruppo Mineralogico Arburese, Gruppo Mineralogico Paleontologico Piacentino, Gruppo Mineralogico Lombardo et al. Ed., Siena, Vol. 2, 192 pp.
      • Gonnosfanadiga
        • Fenugu Sibiri Mine
Brizzi, G., Olmi, F., Sabelli, C. (1994): Gli arseniati di Pira Inferida, Gonnofanadiga (CA). Rivista Mineralogica Italiana, 17, 3 (3-1994), 193-206.
Stara, P., Rizzo, R., Tanca, G.A. (1996): Iglesiente e Arburese. Miniere e Minerali. Edito a cura dell'EMSA e "varie associazioni mineralogiche", Volume 2°, 239 pp.
      • Sarrabus-Gerrei
        • Gerrei
          • Villaputzu
Ciriotti M.E. and Blass.G. (2010) - Pot-pourri 2009: identificazioni UKiS AMI. Minerali italiani di interesse.. Micro (UK report), pagg. 124-127
Kazakhstan
 
  • Almaty Region
    • Alakol
Anthony, J.W., Bideaux, R.A., Bladh, K.W., and Nichols, M.C. (1990) Handbook of Mineralogy.; Amer.Min.(1963) 48, 210-211
Mexico
 
  • Sonora
    • Álamos Municipality
      • San Bernardo
Panczner (1987): 166-364.
Morocco
 
  • Drâa-Tafilalet Region
    • Ouarzazate Province
      • Amerzgane
        • Méchoui
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
    • Zagora Province
      • Aghbar
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
      • Aït Ahmane
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
      • Oumlil
Favreau, G. and Dietrich, J. E. (2006). Die Mineralien von Bou Azzer. Lapis 31(7/8), 27-68
North Macedonia
 
  • Kavadarci
    • Rožden (Rozhden; Roszdan)
Alois Lechner collection (analysed by G. Blass 2009, re-analysed by Uwe Kolitsch)
Poland
 
  • Silesian Voivodeship
    • Wodzisław Co.
      • Radlin
Ł. Kruszewski PXRD data (to be published soon)
Portugal
 
  • Évora
    • Alandroal
      • São Brás dos Matos
Pedro Alves collection and analytical data.
Russia
 
  • Sakha Republic (Yakutia)
    • Indigirka River Basin
      • Ust'-Nera
Gamyanin, G.N., Zayakina, N.V., Galenchikova, L.T. (2013): Arangasite, Al2(PO4)(SO4)F·7.5Н2O, a new mineral from Alaskitovoye deposit (Eastern Yakutia, Russia)". Zapiski RMO, 142(5), 21-30.
Slovakia
 
  • Banská Bystrica Region
    • Banská Bystrica Co.
      • Ľubietová
Martin Števko, unpublished PXRD and EMPA-WDS confirmed
Spain
 
  • Andalusia
    • Córdoba
      • Belalcázar
        • La Ventosilla farmhouse
Rewitzer, C., Calvo, M. Hochleitner, R., and Utrera, C. (2018). Adamite, austinite, schlegelite, dugganite and other uncommon minerals in the “Cogolla Alta” claim,Belalcázar, Córdoba, Spain. Mineral Up, 5 (2), 50-77.
  • Galicia
    • A Coruña (La Coruña)
Castroviejo, R. (1990). Gold ores related to shear zones, West Santa Comba-Fervenza area (Galicia, NW Spain): a mineralogical study. Mineralium Deposita, 25(1), S42-S52.
  • Murcia
    • Lorca
MinRec-2003-0708-315
    • Mazarrón
      • Pastrana
Jordi Fabre
UK
 
  • England
    • Cornwall
      • St Hilary
Golley, P., Williams, R. (1995) Cornish Mineral Reference Manual. Endsleigh Publications, Truro, Cornwall.
USA
 
  • Nevada
    • Elko Co.
      • Carlin Mining District
NBMG Spec. Pub. 31 Minerals of Nevada
    • Eureka Co.
      • Lynn Mining District
NBMG Spec. Pub. 31 Minerals of Nevada
    • Humboldt Co.
      • Osgood Mts
        • Potosi Mining District
          • Adam Peak
            • Getchell Mine
Bowell, R. J., & Parshley, J. V. (2005). Control of pit-lake water chemistry by secondary minerals, Summer Camp pit, Getchell mine, Nevada. Chemical Geology, 215(1-4), 373-385.
  • Oregon
    • Lane Co.
      • Black Butte Mining District
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: 766.; Am Min (1948) 33:122-134
  • Washington
    • Yakima Co.
      • Bumping Lake Mining District
        • Bumping Lake
Cannon, B. (1975): Minerals of Washington, p.118, 154
 
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