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Al2(PO4)F2(OH) · 7H2O
Colourless, white, yellow
In allusion to the composition, being a fluate of alumine (French).
This page provides mineralogical data about Fluellite.

Classification of Fluellite

Approved, 'Grandfathered' (first described prior to 1959)

D : Phosphates, etc. with additional anions, with H2O
E : With only medium-sized cations, (OH, etc.):RO4 = 3:1

6 : A2(XO4)Zq·xH2O

22 : Phosphates, Arsenates or Vanadates with other Anions
1 : Phosphates, arsenates or vanadates with fluoride

Occurrences of Fluellite

Type Occurrence of Fluellite

Associated Minerals at Type Locality:

Physical Properties of Fluellite

Diaphaneity (Transparency):
Colourless, white, yellow
Hardness (Mohs):
On {010} and {111}.
2.139 - 2.17 g/cm3 (Measured)    2.29 g/cm3 (Calculated)

Crystallography of Fluellite

Crystal System:
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:
Cell Parameters:
a = 11.22Å, b = 21.15Å, c = 8.54Å
a:b:c = 0.53 : 1 : 0.404
Unit Cell Volume:
V 2,026.57 ų (Calculated from Unit Cell)
Crystals dipyramidal {111}, often modified by {010}.

Optical Data of Fluellite

Biaxial (+)
RI values:
nα = 1.473 - 1.490 nβ = 1.490 - 1.496 nγ = 1.506 - 1.511
Max Birefringence:
δ = 0.033
Image shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:

Chemical Properties of Fluellite

Al2(PO4)F2(OH) · 7H2O
All elements listed in formula:

Relationship of Fluellite to other Species

8.DE.05SenegaliteAl2(PO4)(OH)(OH)2 · H2O
8.DE.15BulachiteAl2(AsO4)(OH)3 · 3H2O
8.DE.20ZapataliteCu3Al4(PO4)3(OH)9 · 4H2O
8.DE.25CeruleiteCu2Al7(AsO4)4(OH)13 · 11.5H2O
8.DE.35AldermaniteMg5Al12(PO4)8(OH)22 · 32H2O
8.DE.40JuanitaiteBi(Cu,Ca,Fe)10(AsO4)4(OH)11 · 2H2O
8.DE.45IangreyiteCa2Al7(PO4)2(PO3OH)2(OH,F)15 · 8H2O
22.1.3NatrophosphateNa7(PO4)2F · 19H2O
22.1.15MinyuliteKAl2(PO4)2(OH,F) · 4H2O
22.1.16MoriniteNaCa2Al2(PO4)2(OH)F4 · 2H2O
22.1.26McauslaniteFe3Al2(PO4)3(PO3OH)F · 18H2O

Other Names for Fluellite

Name in Other Languages:
Simplified Chinese:氟磷铝石
Traditional Chinese:氟磷鋁石

Other Information

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 Fluellite

Reference List:
Lévy (1824) Annals of Philosophy, London: 8: 242.

Groth (1916) Zeitschrift für praktische Geologie, Berlin, hale a.S.: 24: 190 (as Pleysteinite).

Laubmann and Steinmetz (1920) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 55: 551 (as Kreuzbergite).

Scholz and Strunz (1940) Centralblatt für Mineralogie, Geologie und Paleontologie, Stuttgart: 133.

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: Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons, Inc., New York, 7th edition, revised and enlarged: 124-126.

American Mineralogist (1966): 51: 1579-1592.

Internet Links for Fluellite URL:
Please feel free to link to this page.
The following Fluellite specimens are currently listed for sale on

Localities for Fluellite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
  • Córdoba
    • Punilla Department
Minerals acquired from Mr. Nelson Valenzuela; Kampf, A.R., F. Colombo, W.B. Simmons Jr., A. Falster, J.W. Nizamoff (2010): Galliskiite, Ca4Al2(PO4)2F8 x 5H2O, a new mineral from the Gigante granitic pegmatite, Cordoba province, Argentina. American Mineralogist. 95, 392-96
      • Tanti
Dina, H. (1993). Hentschelita en Cerro Blanco, Tanti, Córdoba. Informacion Tecnologica, 48(3-4), 277-282.
Demartin F, Gay H D, Gramaccioli C M, Pilati T (1997) Benyacarite, a new titanium-bearing phosphate mineral species from Cerro Blanco, Argentina. The Canadian Mineralogist 35, 707-712
  • Queensland
    • Logan City Shire
[MinRec 12:106-107] Murray, C G (1973): Fluellite and Minyulite from Wolffdene, near Beenleigh, Queensland - Geological Survey of Queensland, Government Mining Journal August 1973, No.862 pp 271-274
  • South Australia
    • Mt Lofty Ranges
      • North Mt Lofty Ranges
        • Barossa Valley
          • Angaston
Segnit, E. R., Watts, J. A. & Peisley, V. (1981): Mineralogy of the rock phosphate deposit at Moculta, South Australia. Austral. Mineral. 1 (35), 179-186.; [MinRec 12:106-107]; Harrowfield, I. R., Segnit, E. R., & Watts, J. A. (1981). Aldermanite, a new magnesium aluminium phosphate. Mineralogical Magazine, 44(333), 59-62.
Francis, G.L., Peisley, V., 2012. Minerals from Penrice quarry and the phosphate deposits Klemms and St Kitts, Angaston, South Australia. (self published).
        • Kapunda
[MinRec 12:393-394]
[MinRec 12:393-394] Frost, R.L., S.J. Mills, and K.L. Erickson, (2004), Thermal decomposition of peisleyite: a thermogravimetry and hot stage Raman spectroscopic study. Thermochimica Acta, 419(1-2): p. 109-114.; Pilkington, E. S., Segnit, E. R., & Watts, J. A. (1982). Peisleyite, a new sodium aluminium sulphate phosphate. Mineralogical Magazine, 46(341), 449-452.
        • Robertstown
Peter Elliott
        • Truro
Francis, G.L., Peisley, V., 2012. Minerals from Penrice quarry and the phosphate deposits Klemms and St Kitts, Angaston, South Australia. (self published).
    • Yorke Peninsula
      • Port Clinton
[MinRec 12:107]
  • Victoria
    • Mansfield
W.D.Birch & D.A.Henry 1993. Phosphate Minerals of Victoria. The Mineralogical Society of Victoria special publication No. 3 pp 67-77
    • South Gippsland Shire
      • Hoddle Range
        • Fish Creek
Museum Victoria Mineralogy Collection; Birch, W. D. & Henry, D. A. (1993) Phosphate minerals of Victoria. The Mineralogical Society of Victoria special publication No. 3, pp. 79-81
  • Liège Province
    • Visé
1./ A.M. Fransolet, J Jedwab and R. Van Tassel, 1974, Inventaire minéralogique de Richelles, Belgique, Annales de la Société Géologique de Belgique, Tome 27, pp. 23-26.; R. Van Tassel, A.-M. Fransolet and K. Abraham (1979) Drugmanite, Pb2(Fe3+,Al)(PO4)2(OH) · H2O, a New Mineral from Richelle, Belgium. Mineralogical Magazine 1979 43:463-467
Czech Republic
  • Bohemia (Böhmen; Boehmen)
    • Karlovy Vary Region
      • Horní Slavkov (Schlaggenwald)
        • Krásno (Schönfeld)
Petr Pauliš (2000): Nejzajímavější mineralogická naleziště Čech, Kuttna, Kutná Hora; Sejkora, J., Škoda, R., Ondruš, P., Beran, P. & Susser, C. (2006): Mineralogy of phosphate accumulations in the Huber stock, Krásno ore district, Slavkovský les area, Czech Republic. Journal of the Czech Geological Society 51, 103-147.
      • Lázně Kynžvart (Bad Königswart)
Černý, P., Veselovský, F.: Pegmatit Bílý kámen (Weisser Stein) u Kynžvartu. Minerál, 2000, roč. 8, č. 1, s. 10-16.
  • Auvergne
    • Allier
      • Ébreuil
        • Échassières
Kolitsch, U., Gröbner, J. & Brandstätter, F. (2009): Neufunde von Les Montmins, Allier, Frankreich. Lapis 34 (11), 24-32; 54 (in German).
  • Bavaria
    • Upper Palatinate
      • Pleystein
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: 125.; Dill, H.G., Weber, B. (2009), Pleystein-City on Pegmatite, 4th International Symposium on Granitic Pegmatites, Recife, Brazil.
      • Waidhaus
        • Hagendorf
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: 125;; Grey, I. E., Macrae, C. M., Keck, E., & Birch, W. D. (2012). Aluminium-bearing strunzite derived from jahnsite at the Hagendorf-Süd pegmatite, Germany. Mineralogical Magazine, 76(5), 1165-1174.
      • Waldmünchen
        • Althütte
Lapis, 10 (4), 13-17.
  • Saxony
    • Erzgebirge
      • Eibenstock
        • Schönheide
Thalheim, K. & Kaden, M. (2006): Die Sammlung Sachsen - Interessante Neubestimmungen. Pp. 154-155 in: Lange, J. M. & Kühne, E., Eds. (2006): Das Museum für Mineralogie und Geologie in den Staatlichen Naturhistorischen Sammlungen Dresden. Von der kurfürstlichen Kunstkammer zum staatlichen Forschungsmuseum. Museum für Mineralogie und Geologie, Staatliche Naturhistorische Sammlungen Dresden, Dresden, Germany, 200 pp.
  • Tuscany
    • Grosseto Province
      • Scansano
        • Pereta
Transferred from file #loc-2160. + Scortecci P.B., Tazzini M., 1984. Minerals of the Pereta mine, Tuscany, Italy. Mineralogical Record, 15: 19-26
  • Osh Oblast
    • Alai Range (Alay Range)
      • Fergana Valley
        • Fergana
Karpenko, V.Yu. et al. Zapiski RMO 138(1)83(2009)
  • Marrakech-Tensift-El Haouz Region
    • El Kelaâ des Sraghna Province
      • Sidi Bou Othmane
Favreau, G. (2012): Deux pegmatites à phosphates de Sidi Bou Othmane (Maroc). Le Cahier des Micromonteurs, 3-2012, 71-109.
  • Eastern-Siberian Region
    • Sakha Republic (Saha 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.
  • Navarre
    • Esteríbar
      • Eugui
Calvo, M. y Viñals, J. (2003). Los minerales de las explotaciones de magnesita de Eugui (Navarra). Revista de Minerales, 2 (4), 6-21.
  • Lappland
    • Kiruna district
      • Svappavaara
Bjällerud, C-G. (1989): Phospate minerlas from the Leveäniemi Iron Mine, Svappavaara, Sweden. Mineralogical Record. 20(5):343-346
  • England
    • Cornwall
      • St Austell District
        • St Stephen-in-Brannel
          • Foxhole
Rudler, F.W. (1905): A Handbook to a Collection of the Minerals of the British Islands, Mostly Selected from the Ludlam Collection. HMSO Publications (London), 241 pp.; 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: 125; American Mineralogist (1966): 51: 1579; Embrey & Symes (1987), 52 - "Minerals of Cornwall and Devon"
          • Treviscoe
[Golley & Williams, 1995, 27 - "Cornish Mineral Reference Manual"]
  • Idaho
    • Caribou Co.
      • Soda Springs
Kampf, A. R., Nash, B. P., & Loomis, T. A. (2013). Phosphovanadylite-Ca, Ca [V4 4+ P2O8 (OH) 8]· 12H2O, the Ca analogue of phosphovanadylite-Ba. American Mineralogist, 98(2-3), 439-443.
  • Nevada
    • Eureka Co.
      • Carlin Trend
        • Maggie Creek Subdistrict
MinRec 26(5):449-469; Canadian Mineralogist: 42(3): 741-752.
      • Lynn District
        • Elko
Mineralogical Record 26:467
Nevada Bureau of Mines and Geology Online Documents OF06-19 - Nevada Uranium and Thorium Occurrences
    • Humboldt Co.
      • Iron Point District
        • Valmy
Dr. William S. Wise presentation to Northwest Micro Mineral Study Group on 1 May 2004, Update on Mineralogy of the Silver Coin Mine, Iron Point District, Edna Mountains, Humboldt Co., Nevada
    • Pershing Co.
      • Humboldt Range
        • Willard District
[MinRec 39:297]
  • North Carolina
    • Randolph Co.
[MinRec 8:392-393]
  • South Dakota
    • Pennington Co.
      • Keystone District
        • Keystone
American Mineralogist (1984): 69: 380-382.
  • Texas
    • Hudspeth Co.
      • Sierra Blanca Peaks
O'Neill, L. C. (2014). REE-Be-UF mineralization of the Round Top laccolith, Sierra Blanca Peaks, Trans-Pecos Texas (MS dissertation).
  • Utah
    • Piute Co.
      • Marysvale District (Marysvale Uranium area)
UGMS Bull 117 Minerals and Mineral Localities of Utah
UGMS Bull 117 Minerals and Mineral Localities of Utah
    • Rich Co.
      • Crawford Mts
        • Randolph
[MinRec 24:48]
  • Virginia
    • Amelia Co.
      • Winterham
[Virginia Minerals, Vol 46:2]
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