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Fluellite

Big Photo

Kapunda, South Mt Lofty Ranges, Mt Lofty Ranges, South Australia, Australia
© JM. Johannet

Show Fluellite Photos (34)
Formula:
Al
 
2
[F
 
2
|OH|PO
 
4
] · 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), St Stephen-in-Brannel, St Stephen Area, 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
[F
 
2
|OH|PO
 
4
] · 7H
 
2
O
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
[(OH)
 
3
|PO
 
4
] · H
 
2
O
8.DE.15Bulachite
Al
 
2
[(OH)
 
3
|AsO
 
4
] · 3H
 
2
O
8.DE.20Zapatalite
Cu
 
3
Al
 
4
[(OH)
 
3
|PO
 
4
]
 
3
 · 4H
 
2
O
8.DE.25Ceruleite
Cu
 
2
Al
 
7
[(OH)
 
13
|(AsO
 
4
)
 
4
] · 11.5H
 
2
O
8.DE.35Aldermanite
Mg
 
5
Al
 
12
[(OH)
 
11
|(PO
 
4
)
 
4
]
 
2
 · 32H
 
2
O
8.DE.40Juanitaite
Bi(Cu,Ca,Fe)
 
10
[(OH)
 
11
|(AsO
 
4
)
 
4
] · 2H
 
2
O
Related Minerals - Hey's Index Grouping:
22.1.1Amblygonite
(Li,Na)Al[(F,OH)|PO
 
4
]
22.1.2Lacroixite
NaAl[F|PO
 
4
]
22.1.3Natrophosphate
Na
 
7
(PO
 
4
)
 
2
F·19H
 
2
O
22.1.5Nacaphite
Na
 
2
Ca[F|PO
 
4
]
22.1.6Arctite
Na
 
2
Ca
 
4
(PO
 
4
)
 
3
F
22.1.7Nefedovite
Na
 
5
Ca
 
4
(PO
 
4
)
 
4
F
22.1.9Apatite-(CaF)
Ca
 
5
[F|(PO
 
4
)
 
3
]
22.1.10Herderite
CaBe[(F,OH)|PO
 
4
]
22.1.11Isokite
CaMg[F|PO
 
4
]
22.1.12Panasqueiraite
CaMg[(OH,F)|PO
 
4
]
22.1.13Babefphite
BaBe[(F,OH)|PO
 
4
]
22.1.15Minyulite
KAl
 
2
[(OH,F)|(PO
 
4
)
 
2
] · 4H
 
2
O
22.1.16Morinite
Na
 
2
Ca
 
4
Al
 
4
[(F,OH)
 
5
|(PO
 
4
)
 
2
]
 
2
 · 3H
 
2
O
22.1.17Bøggildite
Na
 
2
Sr
 
2
Al
 
2
PO
 
4
F
 
9
22.1.18Apatite-(SrOH)
(Sr,Ca)
 
5
(PO
 
4
)
 
3
(OH,F)
22.1.19Viitaniemiite
Na(Ca,Mn
2+
 
)Al[(F,OH)
 
3
|PO
 
4
]
22.1.20Väyrynenite
Mn
2+
 
Be[(OH,F)|PO
 
4
]
22.1.21Maxwellite
NaFe
3+
 
[F|AsO
 
4
]
22.1.22Wagnerite
(Mg,Fe
2+
 
)
 
2
[F|PO
 
4
]
22.1.23Triplite
(Mn
2+
 
,Fe
2+
 
)
 
2
[(F,OH)|PO
 
4
]
22.1.24Magniotriplite
(Mg,Fe
2+
 
,Mn
2+
 
)
 
2
[F|PO
 
4
]
22.1.25Zwieselite
(Fe
2+
 
,Mn
2+
 
)
 
2
[F|PO
 
4
]
22.1.26Mcauslanite
HFe
2+
3
Al
 
2
[F|(PO
 
4
)
 
4
] · 18H
 
2
O
22.1.27Richellite
Ca
 
3
Fe
3+
10
[(OH,F)
 
3
|(PO
 
4
)
 
2
]
 
4
 · nH
 
2
O (not confirmed)
22.1.28Svabite
Ca
 
5
[(F,Cl,OH)|(AsO
 
4
)
 
3
]
22.1.29Tilasite
CaMg[F|AsO
 
4
]
22.1.30Fermorite
(Ca,Sr)
 
5
(AsO
 
4
,PO
 
4
)
 
3
(OH)
22.1.31Durangite
NaAl[F|AsO
 
4
]

Other Names for Fluellite

Synonyms:
Fluoride of AluminumKreuzbergitePleysteinite
French names:
Fluate of Alumine
German names:
FluellitKreuzbergit
Russian names:
Флюеллит
Spanish names:
FluellitaKreuzbergita

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:
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  • Look for Fluellite on Wikipedia
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  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Search for Fluellite in the Natural History Museum (London) online catalogue
  • Fluellite details from Handbook of Mineralogy (PDF)
    • Mineral Dealers:
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    Localities for Fluellite

    Hide Locality List
    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.
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    (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.
    Australia
     
    • Queensland
    		[MinRec 12:106-107]
    • South Australia
      • Mt Lofty Ranges
        • South 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]
          • Kapunda
    		[MinRec 12:393-394]
    [MinRec 12:393-394]
      • Yorke Peninsula
    		[MinRec 12:107]
    • Victoria
      • Gippsland
        • Hoddle Range
          • Fish Creek
    		No reference listed
      • Mansfield
    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.
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Karlovy Vary Region
        • Horní Slavkov (Schlaggenwald)
    		Petr Pauliš (2000): Nejzajímavější mineralogická naleziště Čech, Kuttna, Kutná Hora
        • Lázně Kunžvart
    		ˇˇCerný, P., Veselovský, F.: Pegmatit Bílý kámen (Weisser Stein) u Kynžvartu. Minerál, 2000, roč. 8, č. 1, s. 10-16.
    France
     
    • Auvergne
      • Allier
        • Ebreuil
          • Echassières
    		Uwe Kolitsch (single-crystal XRD), to be published
    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.
            • 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
    Spain
     
    • Navarre (Navarra; Nafarroa)
      • Esteribar
        • Eugui
    		Calvo, M. and Viñals, J. (2003). El yacimiento de magnesita de Eugui (Navarra). Revista de Minerales, 2 (4) 6-21
    Sweden
     
    • Lappland
      • Kiruna
        • Svappavaara
    		Mineralogical Record: 20: 344, 346.
    UK
     
    • England
      • Cornwall
        • St Austell District
          • St Stephen Area
            • St Stephen-in-Brannel
    		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.
        • Lynn District
          • Elko
    		MinRecord 26:467
        • Maggie Creek District
    		MinRec 26(5):449-469; Canadian Mineralogist: 42(3): 741-752.
      • 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.
        • Willard District
    		[MinRec 39:297]
    • North Carolina
      • Randolph Co.
    		[MinRec 8:392-393]
    • South Dakota
      • Pennington Co.
        • Keystone District
          • Keystone
    • 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]
    Mineral and/or Locality
    Google
     
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