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Fluorwavellite

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About FluorwavelliteHide

Formula:
Al3(PO4)2(OH)2F·5H2O
Colour:
Green to yellowish-green and yellow
Lustre:
Vitreous, Pearly
Hardness:
3½ - 4
Crystal System:
Orthorhombic
Member of:
Name:
Named for its relationship to wavellite.
The F analogue of wavellite. A low-temperature secondary mineral. Visually indistinguishable from wavellite, since it is essentially identical to wavellite in appearance and physical properties. Same structure as wavellite, differing only in having one of the two independent hydroxyl sites replaced by F.

Chemically similar to fluellite, kingite, and mitryaevaite.


Classification of FluorwavelliteHide

Approved
Approval Year:
2015
First Published:
2017
8.DC.50

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
C : With only medium-sized cations, (OH, etc.):RO4 = 1:1 and < 2:1

Physical Properties of FluorwavelliteHide

Vitreous, Pearly
Transparency:
Transparent, Translucent
Colour:
Green to yellowish-green and yellow
Streak:
White
Hardness:
3½ - 4 on Mohs scale

Optical Data of FluorwavelliteHide

Type:
Biaxial (+)
RI values:
nα = 1.522(1) nβ = 1.531(1) nγ = 1.549(1)
Max Birefringence:
δ = 0.027
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Low

Chemical Properties of FluorwavelliteHide

Formula:
Al3(PO4)2(OH)2F·5H2O
IMA Formula:
Al3(PO4)2(OH)2F · 5H2O

Crystallography of FluorwavelliteHide

Crystal System:
Orthorhombic
Class (H-M):
mmm (2/m 2/m 2/m) - Dipyramidal
Cell Parameters:
a = 9.6311(4) Å, b = 17.3731(12) Å, c = 6.9946(3) Å
Ratio:
a:b:c = 0.554 : 1 : 0.403
Unit Cell V:
1,170.35 ų (Calculated from Unit Cell)
Comment:
Pcmn

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
8.53 (100)
5.65 (26)
3.430 (28)
3.223 (41)
2.580 (28)

Type Occurrence of FluorwavelliteHide

Geological Setting of Type Material:
Cotype material is deposited in the collections of the Mineral Sciences Department, Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, California 90007, USA, catalogue numbers 65600 (W) and 65601 (SC).

Synonyms of FluorwavelliteHide

Relationship of Fluorwavellite to other SpeciesHide

Member of:
Other Members of this group:
AllanpringiteFe3+3(PO4)2(OH)3 · 5H2OMon. 2/m : P21/m
WavelliteAl3(PO4)2(OH,F)3 · 5H2OOrth. mmm (2/m 2/m 2/m)

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 FluorwavelliteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Kampf, A.R., Adams, P.M., Barwood, H., Nash, B.P. (2015) Fluorwavellite, IMA 2015-077. CNMNC Newsletter No. 28, December 2015: 1862; Mineralogical Magazine: 79: 1859–1864.
Kampf, A.R., Adams, P.M., Barwood, H., Nash, B.P. (2017) Fluorwavellite, Al3(PO4)2(OH)2F·5H2O, the fluorine analogue of wavellite. American Mineralogist: 102: 909-915.

Internet Links for FluorwavelliteHide

Localities for FluorwavelliteHide

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.
Bolivia
 
  • Potosí Department
    • Rafael Bustillo Province (Bustillos Province)
      • Llallagua
Kampf et al. (2017) American Mineralogist v. 102 pp. 909-919
Czech Republic
 
  • Central Bohemia Region
    • Benešov (Beneschau)
      • Votice (Wotitz)
        • Líštěnec
Vrtiška L., Malíková R., Sejkora J. (2016): An interresting phosphate occurence around líštěnec near votice (Czech republic). Bulletin mineralogicko-petrologického oddělení Národního muzea v Praze 24 (1): 114-131. https://www.researchgate.net/publication/310616264_An_interresting_phosphate_occurence_around_listenec_near_votice_Czech_republic
    • Příbram
Vrtiška L., Loun J., Malíková R., Sejkora J. (2016):Fluorwavellit a variscit z Počepic u Sedlčan (Česká republika)_(Fluorwavellite and variscite from Počepice near Sedlčany (Czech Republic)), Bull. mineral.-petrolog. Odd. Nár. Muz. 24, 2, 285-297. (with english abstract) https://www.researchgate.net/publication/318109106_Fluorwavellite_and_variscite_from_Pocepice_near_Sedlcany_Czech_Republic
  • Vysočina Region
    • Pelhřimov District
      • Černovice
Vrtiška L, Sejkora J, Malíková R, Kadlec T (2017) Revize a nové nálezy fosfátů na historickém nalezišti Černovice u Tábora (Česká republika). Bull Mineral Petrolog 25(2)
Germany
 
  • Thuringia
    • Gera
Gunnar Färber - Mineralienliste 1-2018
Russia
 
  • Urals Region
    • Southern Urals
      • Chelyabinsk Oblast'
        • Plast
Local geolofist S.V.Kolesnichenko data
USA
 
  • Arkansas
    • Garland Co.
      • Avant
Kampf et al. (2017); American Mineralogist v. 102 pp. 909-919
  • Nevada
    • Humboldt Co.
      • Iron Point District
        • Valmy
Kampf, A.R., Adams, P.M., Barwood, H. and Nash, B.P. (2015) Fluorwavellite, IMA 2015-077. CNMNC Newsletter No. 28, December 2015, page 1862; Mineralogical Magazine, 79, 1859–1864.; Kampf, A.R., Adams, P.M., Barwood, H., Nash, B.P. (2017): Fluorwavellite, Al3(PO4)2(OH)2F·5H2O, the fluorine analogue of wavellite. American Mineralogist: 102: 909-915.
    • Mineral Co.
      • Candelaria District
Kampf, A.R., Adams, P.M. and Nash, B.P. (2016) Whiteite-(CaMgMg),CaMg3Al2(PO4)4(OH)2·8H2O, a New Jahnsite-group Mineral from the Northern Belle Mine, Candelaria, Nevada, U.S.A. Canadian Mineralogist. 54: 1513-1523.
    • Pershing Co.
      • Humboldt Range
        • Willard District
Kampf A.R., Adams P.M., Barwood H. and Nash B.P. (2017) Fluorwavellite Al3(PO4)2(OH)2F.5H2O; the fluorine analogue of Wavellite; American Mineralogist v. 102 pp. 909-919
  • Pennsylvania
    • Snyder Co.
Kampf, A. R., Adams, P. M., Barwood, H., & Nash, B. P. (2017). Fluorwavellite, Al3 (PO4) 2 (OH) 2F· 5H2O, the fluorine analog of wavellite. American Mineralogist, 102(4), 909-915.
  • Tennessee
    • Cocke Co.
      • Del Rio District
        • Del Rio
Kampf, A.R.,Adam,P.M.,Barwood,H. and Nash,B.P (2015) Fluorwavellite,IMA 2015-077 CNMNC,Newsletter,28,.December 2015,page 1862, Mineralogical Magazine,79,1859-1864; Kampf, A.R., Adams, P.M., Barwood, H., Nash, B.P. (2017): Fluorwavellite, Al3(PO4)2(OH)2F·5H2O, the fluorine analogue of wavellite. American Mineralogist: 102: 909-915.
Mineral and/or Locality  
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