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Whitmoreite

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Formula:
Fe
2+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
· 4H
 
2
O
System:MonoclinicColour:Yellow-brown, green-brown
Hardness:3
Member of:Arthurite Group
Name:
Named in 1974 by Paul Brian Moore, Anthony Robert Kampf, and A. J. Irving in honor of Robert Whitmore [b. September 20, 1936], mineral collector of Weare, New Hampshire (USA) and owner of the Palermo Pegmatite localities in Groton.
Isostructural with:Bendadaite


Arthurite Group. The phosphate analogue of Bendadaite.

Classification of Whitmoreite

IMA status:Approved 1974
Strunz 8th edition ID:7/D.08-20
Strunz 9th edition ID:8.DC.15
Nickel-Strunz 10th (pending) edition ID:8.DC.15

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
Dana 8th edition ID:42.11.20.1

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : (AB)3(XO4)2Zq·xH2O
Hey's CIM Ref.:19.13.6

19 : Phosphates
13 : Phosphates of Fe alone
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Type Occurrence of Whitmoreite

Type Locality:Palermo No. 1 Mine (Palermo No. 1 pegmatite), Groton, Grafton Co., New Hampshire, USA
Place of Conservation of Type Material:Smithsonian Washington DC 128069
Year of Discovery:1974

Occurrences of Whitmoreite

Geological Setting:Secondary mineral in complex zoned granitic pegmatites.

Physical Properties of Whitmoreite

Lustre:Sub-Adamantine, Vitreous
Diaphaneity (Transparency):Translucent
Colour:Yellow-brown, green-brown
Hardness (Mohs):3
Cleavage:Imperfect/Fair
Fair on {100}
Density (measured):2.87(1) g/cm3
Density (calculated):2.85 g/cm3

Crystallography of Whitmoreite

Crystal System:Monoclinic
Class (H-M):2/m - Prismatic
Space Group:P21/b
Cell Parameters:a = 10Å, b = 9.73(2) Å, c = 5.471(8) Å
β = 93.8°
Ratio:a:b:c = 1.028 : 1 : 0.562
Unit Cell Volume:V 531.16 ų (Calculated from Unit Cell)
Z:2
Morphology:Uncommon as pseudo-orthorhombic crystals, prismatic to acicular with chisel shape terminations. In fans, radiating sprays or balls.
Twinning:Common by reflection on {100}

Optical Data of Whitmoreite

Type:Biaxial (-)
RI values: nα = 1.670 - 1.676 nβ = 1.712 - 1.725 nγ = 1.745 - 1.850
2V:Measured: 60° to 65°, Calculated: 62°
Maximum Birefringence:δ = 0.075 - 0.174

Chart shows birefringence interference colour range (at 30µm thickness) and does not take into account mineral colouration.
Surface Relief:High
Dispersion:weak
Pleochroism:Visible
Comments:X=Y= light greenish brown to yellow
Z= dark greenish brown to yellowish green

Chemical Properties of Whitmoreite

Formula:
Fe
2+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
· 4H
 
2
O
Simplified for copy/paste:Fe2+Fe3+2(PO4)2(OH)2·4H2O
Essential elements:Fe, H, O, P
All elements listed in formula:Fe, H, O, P
Common Impurities:Mn

Relationship of Whitmoreite to other Species

Member of:Arthurite Group
Other Members of Group:

- +
Arthurite
CuFe
3+
2
(AsO
 
4
,PO
 
4
,SO
 
4
)
 
2
(OH,O)
 
2
· 4H
 
2
O
Bendadaite
Fe
2+
 
Fe
3+
2
(AsO
 
4
)
 
2
(OH)
 
2
· 4H
 
2
O
Cobaltarthurite
(Co,Mg)Fe
3+
2
(AsO
 
4
)
 
2
(OH)
 
2
· 4H
 
2
O
Earlshannonite
Mn
2+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
· 4H
 
2
O
Kunatite
CuFe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
· 4H
 
2
O
Ojuelaite
ZnFe
3+
2
(AsO
 
4
)
 
2
(OH)
 
2
· 4H
 
2
O
Common Associates:
UshkoviteTriphyliteStrunziteSideriteLudlamite
LaueiteBerauniteBeraunite
Related Minerals - Nickel-Strunz Grouping):

- +
8.DC.05Nissonite
Cu
 
2
Mg
 
2
(PO
 
4
)
 
2
(OH)
 
2
· 5H
 
2
O
8.DC.07Euchroite
Cu
 
2
(AsO
 
4
)(OH) · 3H
 
2
O
8.DC.10Legrandite
Zn
 
2
(AsO
 
4
)(OH) · H
 
2
O
8.DC.12Strashimirite
Cu
 
8
(AsO
 
4
)
 
4
(OH)
 
4
· 5H
 
2
O
8.DC.15Arthurite
CuFe
3+
2
(AsO
 
4
,PO
 
4
,SO
 
4
)
 
2
(OH,O)
 
2
· 4H
 
2
O
8.DC.15Earlshannonite
Mn
2+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
· 4H
 
2
O
8.DC.15Ojuelaite
ZnFe
3+
2
(AsO
 
4
)
 
2
(OH)
 
2
· 4H
 
2
O
8.DC.15Cobaltarthurite
(Co,Mg)Fe
3+
2
(AsO
 
4
)
 
2
(OH)
 
2
· 4H
 
2
O
8.DC.15Bendadaite
Fe
2+
 
Fe
3+
2
(AsO
 
4
)
 
2
(OH)
 
2
· 4H
 
2
O
8.DC.15Kunatite
CuFe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
· 4H
 
2
O
8.DC.15UKI-2006-(PO:FeHZn)
ZnFe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
· 4H
 
2
O
8.DC.15UKI-2006-(PO:AlCuFeH)
Fe
2+
 
Al
 
3
(PO
 
4
)
 
2
(OH)
 
2
· 4H
 
2
O
8.DC.17Kleemanite
ZnAl
 
2
(PO
 
4
)
 
2
(OH)
 
2
· 3H
 
2
O
8.DC.20Bermanite
Mn
2+
 
Mn
3+
2
(PO
 
4
)
 
2
(OH)
 
2
· 4H
 
2
O
8.DC.20Coralloite
Mn
2+
 
Mn
3+
2
(AsO
 
4
)
 
2
(OH)
 
2
· 4H
 
2
O
8.DC.22Kovdorskite
Mg
 
2
(PO
 
4
)(OH) · 3H
 
2
O
8.DC.25Ferristrunzite
Fe
3+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
3
· 5H
 
2
O
8.DC.25Ferrostrunzite
Fe
2+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
· 6H
 
2
O
8.DC.25Metavauxite
Fe
2+
 
Al
 
2
(PO
 
4
)
 
2
(OH)
 
2
· 8H
 
2
O
8.DC.25Metavivianite
Fe
2+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
· 6H
 
2
O
8.DC.25Strunzite
Mn
2+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
· 6H
 
2
O
8.DC.27Beraunite
Fe
2+
 
Fe
3+
5
(PO
 
4
)
 
4
(OH)
 
5
· 6H
 
2
O
8.DC.30Gordonite
MgAl
 
2
(PO
 
4
)
 
2
(OH)
 
2
· 8H
 
2
O
8.DC.30Laueite
Mn
2+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
· 8H
 
2
O
8.DC.30Mangangordonite
Mn
2+
 
Al
 
2
(PO
 
4
)
 
2
(OH)
 
2
· 8H
 
2
O
8.DC.30Paravauxite
Fe
2+
 
Al
 
2
(PO
 
4
)
 
2
(OH)
 
2
· 8H
 
2
O
8.DC.30Pseudolaueite
Mn
2+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
· 8H
 
2
O
8.DC.30Sigloite
Fe
3+
 
Al
 
2
(PO
 
4
)
 
2
(OH)
 
3
· 7H
 
2
O
8.DC.30Stewartite
Mn
2+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
· 8H
 
2
O
8.DC.30Ushkovite
MgFe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
· 8H
 
2
O
8.DC.30Ferrolaueite
Fe
2+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
· 8H
 
2
O
8.DC.30Kastningite
(Mn
2+
 
,Fe
2+
 
,Mg)Al
 
2
(PO
 
4
)
 
2
(OH)
 
2
· 8H
 
2
O
8.DC.30Maghrebite
MgAl
 
2
(AsO
 
4
)
 
2
(OH)
 
2
· 8H
 
2
O
8.DC.30Nordgauite
MnAl
 
2
(PO
 
4
)
 
2
(F,OH)
 
2
· 5H
 
2
O
8.DC.32Tinticite
Fe
3+
5.34
(PO
 
4
)
 
3.62
(VO
 
4
)
 
0.38
(OH)
 
4
· 6.7H
 
2
O
8.DC.35Vauxite
Fe
2+
 
Al
 
2
(PO
 
4
)
 
2
(OH)
 
2
· 6H
 
2
O
8.DC.37Vantasselite
Al
 
4
(PO
 
4
)
 
3
(OH)
 
3
· 9H
 
2
O
8.DC.40Cacoxenite
Fe
3+
24
Al(PO
 
4
)
 
17
O
 
6
(OH)
 
12
· 17H
 
2
O
8.DC.45Gormanite
(Fe
2+
 
,Mg)
 
3
(Al,Fe
3+
 
)
 
4
(PO
 
4
)
 
4
(OH)
 
6
· 2H
 
2
O
8.DC.45Souzalite
(Mg,Fe
2+
 
)
 
3
(Al,Fe
3+
 
)
 
4
(PO
 
4
)
 
4
(OH)
 
6
· 2H
 
2
O
8.DC.47Kingite
Al
 
3
(PO
 
4
)
 
2
F
 
2
(OH) · 7H
 
2
O
8.DC.50Wavellite
Al
 
3
(PO
 
4
)
 
2
(OH,F)
 
3
· 5H
 
2
O
8.DC.50Allanpringite
Fe
3+
3
(PO
 
4
)
 
2
(OH)
 
3
· 5H
 
2
O
8.DC.52Kribergite
Al
 
5
(PO
 
4
)
 
3
(SO
 
4
)(OH)
 
4
· 4H
 
2
O
8.DC.55Mapimite
Zn
 
2
Fe
3+
3
(AsO
 
4
)
 
3
(OH)
 
4
· 10H
 
2
O
8.DC.57Ogdensburgite
Ca
 
2
Fe
3+
4
(Zn,Mn
2+
 
)(AsO
 
4
)
 
4
(OH)
 
6
· 6H
 
2
O
8.DC.60Nevadaite
(Cu
2+
 
,Al,V
3+
 
)
 
6
Al
 
8
(PO
 
4
)
 
8
F
 
8
(OH)
 
2
· 22H
 
2
O
8.DC.60Cloncurryite
(Cu,VO)Al
 
2
(PO
 
4
)
 
2
(F,OH)
 
2
· 4.5-5H
 
2
O
Related Minerals - Hey's Index Grouping:

- +
19.13.1Barbosalite
Fe
2+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
19.13.2Strengite
FePO
 
4
· 2H
 
2
O
19.13.3Phosphosiderite
FePO
 
4
· 2H
 
2
O
19.13.4Dufrénite
Ca
 
0.5
Fe
2+
 
Fe
3+
5
(PO
 
4
)
 
4
(OH)
 
6
· 2H
 
2
O
19.13.5Giniite
Fe
2+
 
Fe
3+
4
(PO
 
4
)
 
3
(OH)
 
5
· 2H
 
2
O
19.13.7Tinticite
Fe
3+
5.34
(PO
 
4
)
 
3.62
(VO
 
4
)
 
0.38
(OH)
 
4
· 6.7H
 
2
O
19.13.8Ferristrunzite
Fe
3+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
3
· 5H
 
2
O
19.13.9Ferrostrunzite
Fe
2+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
· 6H
 
2
O
19.13.10Beraunite
Fe
2+
 
Fe
3+
5
(PO
 
4
)
 
4
(OH)
 
5
· 6H
 
2
O
19.13.11Vivianite
Fe
2+
3
(PO
 
4
)
 
2
· 8H
 
2
O
19.13.12Metavivianite
Fe
2+
 
Fe
3+
2
(PO
 
4
)
 
2
(OH)
 
2
· 6H
 
2
O

Other Names for Whitmoreite

Synonyms:
IMA1974-009
Other Languages:
German:Whitmoreit
Russian:Уитморит
Spanish:Whitmoreita

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 Whitmoreite

Reference List:

- +
Moore, P.B., Kampf, A.R. and Irving, A.J. (1974) Whitmoreite, Fe2+Fe3+2(OH)2(H2O)4[PO4]2, a new species: Its description and atomic arrangement. American Mineralogist: 59: 900-905.

Anthony, J.W., Bideaux, R.A., Bladh, K.W., and Nichols, M.C. (2000) Handbook of Mineralogy, Volume IV. Arsenates, Phosphates, Vanadates. Mineral Data Publishing, Tucson, AZ, 680pp.: 654.

Internet Links for Whitmoreite

Search Engines:
  • Look for Whitmoreite on Google
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  • External Links:
  • Look for Whitmoreite on Webmineral
  • Look for Whitmoreite on Athena Mineralogy
  • Look for Whitmoreite on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Whitmoreite details from Handbook of Mineralogy (PDF)
  • Mineral Dealers:
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  • Localities for Whitmoreite

    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.
    Australia
     
    • Victoria
      • East Gippsland Shire
        • Omeo
          • Mt Wills Mining District
            • Glen Wills
    Ryan Eagle
    Belgium
     
    • Hainaut Province (Henegouwen; Hennegau)
      • Mons
        • Blaton
    Hatert, F., Deliens, M., Fransolet, A.-M. & van der Meersche, E. (2002): Les minéraux de Belgique. 2ème édition, Muséum des Sciences Naturelles, Bruxelles, Ed., 304 p.
    Brazil
     
    • Minas Gerais
      • Doce valley
        • Galiléia
          • Sapucaia do Norte
    Baijot, M., Hatert, F. & Philippo, S. (2012): Mineralogy and geochemistry of phosphates and silicates in the Sapucaia pegmatite, Minas Gerais, Brazil: Genetic implications. Canadian Mineralogist. 50, 1531-1554
    Czech Republic
     
    • Bohemia (Böhmen; Boehmen)
      • Karlovy Vary Region
        • Aš (Asch)
    Breiter K., Škoda R., Veselovský F.: Neobvyklý P-, Li- a Sn-bohatý pegmatit z Vernéřova u Aše, Česká republika. Bulletin Mineralogicko-petrografického oddělení Národního muzea v Praze, 2009, roč. 17, č. 1, s. 41-59.
        • Horní Slavkov (Schlaggenwald)
          • Krásno (Schönfeld)
    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.
    • Moravia (Mähren; Maehren)
      • Vysočina Region
        • Žďár nad Sázavou
    Staněk, J.: Parageneze minerálů pegmatitových žil z Hatí u Dolních Borů na západní Moravě. Acta Mus. Moraviae, Sci. nat., vol. 76, pages 19-49.
    France
     
    • Midi-Pyrénées
      • Ariège
        • Le Bosc
    Bull. Soc. Franç. Minéralo. Cristallo. , 1974, 97, p. 523.
    Inventaire mineralogique de l'Ariege (Editions BRGM 1984)
    Germany
     
    • Bavaria
      • Lower Bavaria
        • Zwiesel
          • Rabenstein
    Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
      • Upper Palatinate
        • Pleystein
    Dill, H.G., Weber, B. (2009), Pleystein-City on Pegmatite, 4th International Symposium on Granitic Pegmatites, Recife, Brazil.
    DILL, H.G., MELCHER, F., GERDES, A. and WEBER, B. (2008): The origin and zoning of hypogene and supergene Fe-Mn-Mg-Sc-U-REE-Zn phosphate mineralization from the newly discovered Trutzhofmühle aplite (Hagendorf pegmatite province, Germany). Canadian Mineralogist 46, 1131-1157.
        • Waidhaus
          • Hagendorf
    http://www.berthold-weber.de/h_miner.htm
    Wittern: "Mineralfundorte in Deutschland", 2001
    Italy
     
    • Lombardy
      • Lecco Province
        • Vestreno
    Vignola et al. (2011): Complex mechanisms of alteration in a graftonite + sacropside+ triphylite association from the Luna pegmatite, Piona, Lecco Province, Italy. Canadian Mineralogist. 49, 765-776.
    Poland
     
    • Lower Silesia (Dolnośląskie)
      • Sowie Mts
    Pieczka A., Łobos K., Sachanbiński M. 2004: The first occurence of elbaite in Poland. Mineralogia Polonica, vol. 35, 3-14
    Portugal
     
    • Guarda District
      • Sabugal
        • Bendada
    Schnorrer-Köhler (1991), Mineral Occurrences.
    Switzerland
     
    • Ticino (Tessin)
      • Lago Maggiore
        • Brissago
    Stalder, H. A., Wagner, A., Graeser, S. und Stuker, P. (1998): Mineralienlexikon der Schweiz. Wepf Verlag, Basel, 579 pp.
    UK
     
    • England
      • Cornwall
        • St Agnes District
          • Perranzabuloe
            • Perran Iron Lode (Great Perran Iron Lode)
    Golley, P., and Williams, R. (1995): Cornish Mineral Reference Manual. Endsleigh Publications (Truro), 104 pp.
    USA
     
    • Connecticut
      • Middlesex Co.
        • East Hampton (Chatham)
          • Cobalt
    Rocks & Min.: 70:403; Januzzi (1976) p.234-5.
    • Maine
      • Cumberland Co.
        • Baldwin
          • West Baldwin
    Thompson, W.B., et,al., 2000, Rocks & Minerals, vol. 75, no. 6, pgs 408-418
      • Oxford Co.
        • Greenwood
          • Uncle Tom Mountain
    No reference listed
        • Newry
    King, V. and Foord, E., 1994, Mineralogy of Maine, V. 1; King, V. (ed.), 2000, Mineralogy of Maine, V. 2.
    King, V. and Foord, E., 1994, Mineralogy of Maine, V. 1; King, V. (ed.), 2000, Mineralogy of Maine, V. 2, with updates by Van King
        • Paris
    • New Hampshire
      • Cheshire Co.
        • Alstead
    Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
        • Walpole
    P. Cristofono, T. Mortimer, J.W. Nizamoff, A. Wilken, and R. Wilken (2011) The 38th Rochester Mineralogical Symposium, April 14-17, 2011, lecture abstracts, page 17-18.
      • Grafton Co.
        • Alexandria
    Wilken, Bob (2006). E.E. Smith Mine Trip Report (Micromounters of New England Newsletter Oct. 2006)
    Wilken, Bob (2006). E.E. Smith Mine Trip Report (Micromounters of New England Newsletter Oct. 2006)
        • Groton
    Am.Min. 59, 900-905 (1974); NIZAMOFF, James W., SIMMONS, William B., and FALSTER, Alexander U. (2004) PHOSPHATE MINERALOGY AND PARAGENESIS OF THE PALERMO #2 PEGMATITE, NORTH GROTON, NEW HAMPSHIRE Geological Society of America Abstracts with Programs, Vol. 36, No. 5, p. 115
    Rocks & Min., May 1999.; Geological Society of America Abstracts with Programs, Vol. 36, No. 5, p. 115
    • North Carolina
      • Cleveland Co.
        • Kings Mountain District
    Jason Smith collection
    • South Dakota
      • Custer Co.
        • Custer District
          • Fourmile
    Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
      • Pennington Co.
        • Keystone District
          • Glendale
    Handbook of Mineralogy - Anthony, Bideaux, Bladh, Nichols
          • Keystone
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