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Fluellite

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Formula:
Al
 
2
(PO
 
4
)F
 
2
(OH) · 7H
 
2
O
System:OrthorhombicColour:Colourless, white, yellow
Lustre:VitreousHardness:3
Name:In allusion to the composition, being a fluate of alumine (French).
This page provides mineralogical data about Fluellite.

Classification of Fluellite

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:7/D.18-30
Nickel-Strunz 10th (pending) edition ID:8.DE.10

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
E : With only medium-sized cations, (OH, etc.):RO4 = 3:1
Dana 8th edition ID:42.6.9.1

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
6 : A2(XO4)Zq·xH2O
Hey's CIM Ref.:22.1.14

22 : Phosphates, Arsenates or Vanadates with other Anions
1 : Phosphates, arsenates or vanadates with fluoride
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Type Occurrence of Fluellite

Type Locality:Stenna Gwyn Mine (Stennagwyn Mine), Foxhole, St Stephen-in-Brannel, St Austell District, Cornwall, England, UK
Year of Discovery:1824
Associated Minerals at type locality:
TorberniteTavistockiteQuartzFluoriteArsenopyrite

Occurrences of Fluellite

Geological Setting:In pegmatites

Physical Properties of Fluellite

Lustre:Vitreous
Diaphaneity (Transparency):Transparent
Colour:Colourless, white, yellow
Hardness (Mohs):3
Cleavage:Poor/Indistinct
On {010} and {111}.
Density (measured):2.139 - 2.17 g/cm3
Density (calculated):2.29 g/cm3

Crystallography of Fluellite

Crystal System:Orthorhombic
Class (H-M):mmm (2/m 2/m 2/m) - Dipyramidal
Space Group:Fddd {F2/d 2/d 2/d}
Cell Parameters:a = 11.22Å, b = 21.15Å, c = 8.54Å
Ratio:a:b:c = 0.53 : 1 : 0.404
Unit Cell Volume:V 2,026.57 ų (Calculated from Unit Cell)
Morphology:Crystals dipyramidal {111}, often modified by {010}.

Optical Data of Fluellite

Type:Biaxial (+)
RI values: nα = 1.473 - 1.490 nβ = 1.490 - 1.496 nγ = 1.506 - 1.511
Maximum Birefringence:δ = 0.033

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:Moderate
Dispersion:none

Chemical Properties of Fluellite

Formula:
Al
 
2
(PO
 
4
)F
 
2
(OH) · 7H
 
2
O
Simplified for copy/paste:Al2(PO4)F2(OH)·7H2O
Essential elements:Al, F, H, O, P
All elements listed in formula:Al, F, H, O, P

Relationship of Fluellite to other Species

Related Minerals - Nickel-Strunz Grouping):

- +
8.DE.05Senegalite
Al
 
2
(PO
 
4
)(OH)(OH)
 
2
· H
 
2
O
8.DE.15Bulachite
Al
 
2
(AsO
 
4
)(OH)
 
3
· 3H
 
2
O
8.DE.20Zapatalite
Cu
 
3
Al
 
4
(PO
 
4
)
 
3
(OH)
 
9
· 4H
 
2
O
8.DE.25Ceruleite
Cu
 
2
Al
 
7
(AsO
 
4
)
 
4
(OH)
 
13
· 11.5H
 
2
O
8.DE.35Aldermanite
Mg
 
5
Al
 
12
(PO
 
4
)
 
8
(OH)
 
22
· 32H
 
2
O
8.DE.40Juanitaite
Bi(Cu,Ca,Fe)
 
10
(AsO
 
4
)
 
4
(OH)
 
11
· 2H
 
2
O
8.DE.45Iangreyite
Ca
 
2
Al
 
7
(PO
 
4
)
 
2
(PO
 
3
OH)
 
2
(OH,F)
 
15
· 8H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
22.1.1Amblygonite
LiAl(PO
 
4
)F
22.1.2Lacroixite
NaAl(PO
 
4
)F
22.1.3Natrophosphate
Na
 
7
(PO
 
4
)
 
2
F · 19H
 
2
O
22.1.5Nacaphite
Na
 
2
Ca(PO
 
4
)F
22.1.6Arctite
Na
 
2
Ca
 
4
(PO
 
4
)
 
3
F
22.1.7Nefedovite
Na
 
5
Ca
 
4
(PO
 
4
)
 
4
F
22.1.9Fluorapatite
Ca
 
5
(PO
 
4
)
 
3
F
22.1.10Herderite
CaBePO
 
4
(F,OH)
22.1.11Isokite
CaMg(PO
 
4
)F
22.1.12Panasqueiraite
CaMg(PO
 
4
)(OH,F)
22.1.13Babefphite
BaBePO
 
4
(F,OH)
22.1.15Minyulite
KAl
 
2
(PO
 
4
)
 
2
(OH,F) · 4H
 
2
O
22.1.16Morinite
NaCa
 
2
Al
 
2
(PO
 
4
)
 
2
(OH)F
 
4
· 2H
 
2
O
22.1.17Bøggildite
Na
 
2
Sr
 
2
Al
 
2
PO
 
4
F
 
9
22.1.18Fluorstrophite
SrCaSr
 
3
(PO
 
4
)
 
3
F
22.1.19Viitaniemiite
Na(Ca,Mn
2+
 
)Al(PO
 
4
)(F,OH)
 
3
22.1.20Väyrynenite
Mn
2+
 
Be(PO
 
4
)(OH,F)
22.1.21Maxwellite
NaFe
3+
 
(AsO
 
4
)F
22.1.22Wagnerite
(Mg,Fe
2+
 
)
 
2
(PO
 
4
)F
22.1.23Triplite
(Mn
2+
 
,Fe
2+
 
)
 
2
(PO
 
4
)(F,OH)
22.1.24Magniotriplite
(Mg,Fe
2+
 
,Mn
2+
 
)
 
2
PO
 
4
F
22.1.25Zwieselite
(Fe
2+
 
,Mn
2+
 
)
 
2
(PO
 
4
)F
22.1.26Mcauslanite
HFe
2+
3
Al
 
2
(PO
 
4
)
 
4
F · 18H
 
2
O
22.1.27Richellite
CaFe
3+
2
(PO
 
4
)
 
2
(OH,F)
 
2
22.1.28Svabite
Ca
 
5
(AsO
 
4
)
 
3
F
22.1.29Tilasite
CaMg(AsO
 
4
)F
22.1.30Johnbaumite-M
Ca
 
5
(AsO
 
4
)
 
3
OH
22.1.31Durangite
NaAl(AsO
 
4
)F

Other Names for Fluellite

Synonyms:
Fluoride of AluminumKreuzbergitePleysteinite
Other Languages:
French:Fluate of Alumine
German:Fluellit
Kreuzbergit
Russian:Флюеллит
Simplified Chinese:氟磷铝石
Spanish:Fluellita
Kreuzbergita
Traditional Chinese:氟磷鋁石

Other Information

Health Warning: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

Search Engines:
  • Look for Fluellite on Google
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  • External Links:
  • Look for Fluellite on Webmineral
  • Look for Fluellite on Athena Mineralogy
  • Look for Fluellite on Wikipedia
  • Look for Fluellite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Fluellite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
  • Fine and rare minerals from mintreasure.com
  • SpiriferMinerals.com - high quality low prices
  • Find Fluellite on www.crystalclassics.co.uk
  • Search for Fluellite on Well-Arranged Molecules
  • Buy rare minerals from Excalibur Minerals
  • Wilensky Fine Minerals
  • Fabre Minerals - search for Fluellite specimens
  • Buy minerals from YourMineralCollection
  • DAKOTA MATRIX offers Cabinet and Rare Species from Worldwide Localities.
  • Rare and Unusual minerals at Mineralogical Research Company
  • rare and unusual minerals mainly crystallized
  • Buy from Dave Bunk Minerals
  • Specimens:The following Fluellite specimens are currently listed for sale on minfind.com.

    Localities for Fluellite

    The 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. ? 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.
    Argentina
     
    • Córdoba
      • Punilla Department
    Minerals acquired from Mr. Nelson Valenzuela
        • Tanti
    Dina, H. (1993). Hentschelita en Cerro Blanco, Tanti, Córdoba. Informacion Tecnologica, 48(3-4), 277-282.
    Mr. Nelson Valenzuela.; 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
    Australia
     
    • Queensland
      • Logan City Shire
    [MinRec 12:106-107]
    • 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]
    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.
          • 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 (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
    Belgium
     
    • 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.
    France
     
    • 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).
    Germany
     
    • Bavaria
      • Upper Palatinate
        • Oberpfälzer Wald
          • Vohenstrauß
            • 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; http://www.berthold-weber.de/h_miner.htm
          • 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.
    Italy
     
    • Tuscany
      • Grosseto Province
        • Scansano
          • Pereta
    Transferred from file #loc-2160. + Scortecci P.B., Tazzini M., 1984. Minerals of the Pereta mine, Tuscany, Italy. Mineral. Rec., 15: 19-26
    Kyrgyzstan
     
    • Osh Oblast
      • Alai Range (Alay Range)
        • Fergana Valley
          • Fergana
    Karpenko, V.Yu. et al. Zapiski RMO 138(1)83(2009)
    Morocco
     
    • 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.
    Spain
     
    • 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.
    Sweden
     
    • Lappland
      • Kiruna district
        • Svappavaara
    Bjällerud, C-G. (1989): Phospate minerlas from the Leveäniemi Iron Mine, Svappavaara, Sweden. Mineralogical Record. 20(5):343-346
    UK
     
    • England
      • Cornwall
        • St Austell District
          • St Stephen-in-Brannel
            • Foxhole
    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"]
    USA
     
    • Nevada
      • Eureka Co.
        • Carlin Trend
          • Maggie Creek Subdistrict
    MinRec 26(5):449-469; Canadian Mineralogist: 42(3): 741-752.
        • Lynn District
          • Elko
    MinRecord 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.
    • 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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    Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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