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Arrojadite Group

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Formula:
A2 E2CaNa2+xM13R (HPO4)1-x(PO4)11W2
A group of basic phosphate minerals with the general formula indicated above, where:

A denotes a large divalent cation (Ba, Sr, Pb) plus a vacancy, or two monovalent cations (K, Na),
E denotes a small divalent cation (Fe, Mn, Mg) plus a vacancy, or two Na cations,
M is a small divalent cation (Fe, Mn, Mg), whose identity defines the root-name: Fe, arrojadite, or Mn, dickinsonite,
R is a small trivalent cation (Al, Fe) and
W is a hydroxide or fluoride ion.


Classification of Arrojadite Group

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Chemical Properties of Arrojadite Group

Formula:
A2 E2CaNa2+xM13R (HPO4)1-x(PO4)11W2

Relationship of Arrojadite Group to other Species

Group Members:
Arrojadite-(BaFe) {Ba◻}{Fe2+◻}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)(OH)2
Arrojadite-(BaNa) BaNa3(NaCa)Fe132+Al(PO4)11(PO3OH)(OH)
Arrojadite-(KFe) {KNa}{Fe2+◻}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)(OH)2
Arrojadite-(KFeNa) {KNa}{Fe2+◻}{Ca}{Na3}{Fe132+}{Al}(PO4)11(HPO4)(OH)2
Arrojadite-(KNa) {KNa}{Na2}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)(OH)2
Arrojadite-(NaFe) {Na2}{Fe2+◻}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)(OH)2
Arrojadite-(PbFe) {Pb◻}{Fe2+◻}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)(OH)2
Arrojadite-(SrFe) {Sr◻}{Fe2+◻}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)(OH)2
Dickinsonite-(KMnNa) {KNa}{Mn2+◻}{Ca}{Na3}{Mn132+}{Al}(PO4)12(OH)2
Ferri-arrojadite-(BaNa) {Ba◻}{Na2}{Ca}{Na2◻}{Fe132+}{Fe3+}(PO4)11(HPO4)(OH)2
Fluorarrojadite-(BaFe) {Ba◻}{Fe2+◻}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)F2
Fluorarrojadite-(KNa) {KNa}{Na2}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)F2
Fluorarrojadite-(NaFe) {Na2}{Fe2+◻}{Ca}{Na2◻}{Fe132+}{Al}(PO4)11(HPO4)F2

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 Arrojadite Group

Reference List:
Cámara, F., Oberti, R., Chopin, C., Medenbach, O. (2006): The arrojadite enigma: I. A new formula and a new model for the arrojadite structure. American Mineralogist, 91, 1249-1259

Chopin, C., Oberti, R., Cámara, F. (2006): The arrojadite enigma: II. Compositional space, new members and nomenclature of the group. American Mineralogist, 91, 1260-1270.

Internet Links for Arrojadite Group

Localities for Arrojadite Group

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.
Argentina
 
  • Salta
    • Nevados de Palermo
[Arrojadite-(KFe)] Milka K. de Brodtkorb (2002) Las Especies Minerales de la Republica Argentina. Vol. 1 (elements, sulphides and sulphosalts). (Asociacion Mineralogica Argentina); M. A. Galliski (1981). Estructura, mineralogía y génesis de las pegmatitas de El Quemado, Salta, República Argentina. Tesis doctoral, Facultad de Ciencias Exactas, Físicas y Naturales, Universidad Nacional de Córdoba.; Galliski, M. A. (1983). Distrito minero El Quemado, Deptos. La Poma y Cachi, provincia de Salta. II. Geología de sus pegmatitas. Rev. Asoc. Geol. Argentina, 38, 340-380.
[Arrojadite-(KFe)] Galliski, M. A., & Hawthorne, F. C. (2002). Refinement of the crystal structure of ushkovite from Nevados de Palermo, Republica Argentina. The Canadian Mineralogist, 40(3), 929-937.
Australia
 
  • South Australia
    • Olary Province
      • Boolcoomatta Reserve (Boolcoomata Station; Boolcoomatta)
[Dickinsonite-(KMnNa)] Record of Sth.Aust. mines summary Olary SI5402 card 235
[Dickinsonite-(KMnNa)]
Austria
 
  • Styria
    • Fischbacher Alpen
      • Fischbach
Bernhard, F. (1996)
Brazil
 
  • Minas Gerais
    • Doce valley
      • Conselheiro Pena
[Arrojadite-(KFe)] Canadian Mlneralogist Vol. 20, pp. 87-89 (1982)
      • Galiléia
        • Laranjeiras
[Arrojadite-(KFe)] [MinRec 12:70]
        • Sapucaia do Norte
[Arrojadite-(PbFe)] Chopin, C., Oberti, R., Cámara, F. (2006): The arrojadite enigma: II. Compositional space, new members and nomenclature of the group. American Mineralogist, 91, 1260-1270
  • Paraíba
    • Borborema mineral province
      • Pedra Lavrada
[Arrojadite-(KFe)] Am Min (1955) 40:55-63
[Arrojadite-(KFe)] 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: 680; Rocks & Minerals (Jan.2000).
Canada
 
  • Manitoba
    • Cross Lake
      • North Group
        • (Gottcha Claim)
[Dickinsonite-(KMnNa)] ERCIT, S.T., TAIT, K.T., COOPER, M.A. ABDU, Y., BALL, N.A., ANDERSON, A.J., ČERNÝ, P. & HAWTHORNE, F.C. (2010) Manitobaite, Na16Mn2+25Al8(PO4)30, a new phosphate mineral species from Cross Lake, Manitoba, Canada. Canadian Mineralogist 48, 1455-1463.
  • Yukon Territory
    • Dawson Mining District
[Arrojadite-(KFe)] [MinRec 23:14-15]
[Arrojadite-(KFe)] Robinson, G.W., Van Velthuizen, J., Ansell, H.G. & Sturman, B.D. (1992): Mineralogy of the Rapid Creek and Big Fish River area, Yukon Territory. Mineralogical Record 23, 1-47
[Arrojadite-(KFe)] Robinson, G.W., Van Velthuizen, J., Ansell, H.G. & Sturman, B.D. (1992): Mineralogy of the Rapid Creek and Big Fish River area, Yukon Territory. Mineralogical Record 23, 1-47.
[Arrojadite-(KFe)] [MinRec 23:14-15]
        • Kulan Camp (Area A; Area 1)
[Arrojadite-(KFe)] Robinson, G.W., Van Velthuizen, J., Ansell, H.G. & Sturman, B.D. (1992): Mineralogy of the Rapid Creek and Big Fish River area, Yukon Territory. Mineralogical Record 23, 1-47
[Arrojadite-(KFe)] Robinson, G.W., Van Velthuizen, J., Ansell, H.G. & Sturman, B.D. (1992): Mineralogy of the Rapid Creek and Big Fish River area, Yukon Territory. Mineralogical Record 23, 1-47
[Arrojadite-(KFe)] Robinson, G.W., Van Velthuizen, J., Ansell, H.G. & Sturman, B.D. (1992): Mineralogy of the Rapid Creek and Big Fish River area, Yukon Territory. Mineralogical Record 23, 1-47
[Arrojadite-(KFe)] Robinson, G.W., Van Velthuizen, J., Ansell, H.G. & Sturman, B.D. (1992): Mineralogy of the Rapid Creek and Big Fish River area, Yukon Territory. Mineralogical Record 23, 1-47
[Arrojadite-(KFe)] Robinson, G.W., Van Velthuizen, J., Ansell, H.G. & Sturman, B.D. (1992): Mineralogy of the Rapid Creek and Big Fish River area, Yukon Territory. Mineralogical Record 23, 1-47
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • Plzeň Region
      • Poběžovice (Ronsperg; Ronsberg; Ronsperk)
        • Otov
[Arrojadite-(KFe)] Masau, M., Staněk, J., Černý, P., Chapman, R. (2000). Metasomatic wolfeite and associated phosphates from the Otov I granitic pegmatite, western Bohemia. J. Czech Geol. Soc. 45, 159-173.
Finland
 
  • Southwestern Finland Region
    • Kemiö Island (Kimito Island)
[Arrojadite-(KFe)] GFF (1899) 21, 639-640
France
 
  • Languedoc-Roussillon
    • Pyrénées-Orientales
[Arrojadite-(KFe)] Berbain,C., Riley, T., Favreau, G., (2012): Phosphates des pegmatites du massif des Albères (Pyrénées-Orientales). Le Cahier des Micromonteurs. 117, 121-172
        • Collioure (Cotlliure)
[Arrojadite-(KFe)] BERBAIN. C, RILEY. T, FAVREAU. G, (2012) Phosphates des pegmatites du massif des Albères. Ed Association Française de Microminéralogie
  • Limousin
    • Haute-Vienne
      • Razès
        • Chanteloube
          • Vilatte Quarries (La Vilate)
[Arrojadite-(KFe)] Anthony, Bideaux, Bladh, Nichols: "Handbook of Mineralogy", Vol. 4, 2000
Germany
 
  • Bavaria
    • Lower Bavaria
      • Zwiesel
        • Rabenstein
[Arrojadite-(KFe)] Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    • Upper Palatinate
      • Waidhaus
        • Hagendorf
[Arrojadite-(KFe)] http://www.berthold-weber.de/h_miner.htm
  • Saxony
    • Erzgebirge
      • Ehrenfriedersdorf
[Arrojadite-(KFe)] Thomas, R., and Webster, J.D. (2000): Mineralium Deposita 35, 570-582.
Italy
 
  • Lombardy
    • Lecco Province
      • Colico
[Arrojadite-(KNa)] Vignola, P., Fransolet, A.M., Guastoni, A. & Appiani, R. (2011). Le pegmatiti di Piona. Recenti studi sui filoni Malpensata, Luna e Sommafiume. Rivista Mineralogica Italiana, 1/2011, 30-38
      • Dorio
[Arrojadite-(KNa)] Vignola, P., Fransolet, A.M., Guastoni, A. & Appiani, R. (2011). Le pegmatiti di Piona. Recenti studi sui filoni Malpensata, Luna e Sommafiume. Rivista Mineralogica Italiana, 1/2011, 30-38.
    • Sondrio Province
      • Valchiavenna
        • Spluga Valley (San Giacomo Valley)
          • Madesimo
[Arrojadite-(BaFe)] Demartin, F., Gramaccioli, C.M., Pilati, T., Sciesa, E. (1996): Sigismundite, (Ba,K,Pb)Na3(Ca,Sr)(Fe,Mg,Mn)14Al(OH)2(PO4)12, a new Ba-rich member of the arrojadite group from Spluga Valley, Italy. Canadian Mineralogist, 34, 827-834.
Japan
 
  • Honshu Island
    • Kanto Region
      • Ibaraki Prefecture
        • Kasumigaura City
          • Chiyoda-machi
[Arrojadite-(KFe)] The Mineral Species of Japan (5th ed) Matsubara
Morocco
 
  • Marrakech-Tensift-El Haouz Region
    • El Kelaâ des Sraghna Province
[Arrojadite-(KFe)] Fontan, F. (1978) : Etude minéralogique et essais expérimentaux sur les phosphates de fer et de manganèse des pegmatites des Jebilet (Maroc) et des Pyrénées (France), PhD thesis, Toulouse, 272 p.
    • Marrakech Prefecture
[Fluorarrojadite-(BaFe)] IMA website
  • Souss-Massa-Draâ Region
    • Ouarzazate Province
      • Tazenakht
[Arrojadite-(KFe)] Pavel M. Kartashov analytical data
Namibia
 
  • Erongo Region
    • Karibib District
      • Okatjimukuju Farm 55 (Friedrichsfelde Farm)
[Arrojadite-(KFe)] P. Keller and O. von Knorring, Eur. J. Mineral. , 1989, 1, pp. 567-593.
      • Okongava Ost Farm 72
[Dickinsonite-(KMnNa)] P. Keller et al., NJMA 183, 197-201 (2007)
Portugal
 
  • Viseu District
[Arrojadite-(KFe)] Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV
Rwanda
 
  • Western Province
    • Gatumba District
[Arrojadite-(BaFe)] von Knorring, O. (1969): A note on the phosphate mineralisation at the Buranga pegmatite, Rwanda. Bulletin du Service Geologique de la Republique du Rwanda. 5: 42-45; Chopin, C., Oberti, R., Cámara, F. (2006): The arrojadite enigma: II. Compositional space, new members and nomenclature of the group. American Mineralogist. 91, 1260-1270.
Slovakia
 
  • Košice Region
    • Gelnica Co.
      • Henclová (Henzlová)
Petrík, I., Kubiś, M., Konečný, P. & Malachovský, P. (2011): Rare phospates from the Surovec Topaz-Li-Mica microgranite, Gemeric Unit, Western Carpathians, Slovak Republik: Role of F/H2O of melt. Canadian Mineralogist. 49. 521-540
    • Rožňava Co.
      • Gemerská Poloma (Poloma; Veszverés)
[Fluorarrojadite-(BaFe)] Martin Števko, unpublished-EMPA-WDS and PXRD confirmed
Spain
 
  • Castile and Leon
    • Salamanca
      • Garcirrey
[Arrojadite-(KFe)] Encarnación Roda-Robles, Alfonso Pesquera (2007) Locality no. 4: The Phosphates-Rich Cañada Pegmatite (Aldehuela de La Bóveda, Salamanca, Spain) in ALEXANDRE LIMA & ENCARNACIÓN RODA ROBLES ed (2007) GRANITIC PEGMATITES: THE STATE OF THE ART - FIELD TRIP GUIDEBOOK. MEMÓRIAS N. º 9, UNIV. DO PORTO, FACULDADE DE CIÊNCIAS, DEPARTAMENTO DE GEOLOGIA pp 67-72.
  • Catalonia
    • Girona (Gerona)
      • Alt Empordà
        • Cadaqués
[Arrojadite-(KFe)] Bareche, E. (2005) "Els minerals de Catalunya. Segle XX" Ed. Museu Mollfulleda de Mineralogia - Grup Mineralògic Català, 269 p.
Sweden
 
  • Södermanland
    • Norrö
[Arrojadite-(KFe)] Gustafsson, Lars & Otter, Bertil (1991): Mineralförekomster i Stockholmstrakten.Del 2. STEIN 18(4),4-12
  • Uppland
    • Sigtuna
      • Arlanda
[Arrojadite-(KFe)] No reference listed
  • Värmland
    • Torsby
[Arrojadite-(SrFe)] American Mineralogist (2006) 91 (8-9), 1260-1270, IMA website
UK
 
[Arrojadite-(KFe)] Tindle, A.G. (2008) Minerals of Britian and Ireland
    • Buchan Grampian (Aberdeenshire)
      • Strathdon
[Arrojadite-(KFe)] Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV
USA
 
  • Arizona
    • Yavapai Co.
[Dickinsonite-(KMnNa)] AmMin 67: 97-113 (1982)
  • Connecticut
    • Fairfield Co.
[Dickinsonite-(KMnNa)] Januzzi (1976) Mineral Localities of Connecticut & Southeastern New York State, p.278
[Dickinsonite-(KMnNa)] Januzzi, Ronald E. (1994), Mineral Data Book - Western Connecticut and Environs. The Mineralogical Press, Danbury, Connecticut.
      • Redding (Reading)
        • Branchville
[Dickinsonite-(KMnNa)] Brush and Dana (1878); American Mineralogist (1946): 31: 329-345; 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: 671, 718, 855.; Rocks & Minerals (1995) 70:396-409
    • Middlesex Co.
      • East Hampton (Chatham)
        • Cobalt
[Arrojadite-(KFe)] Januzzi (1976) p.234-5.
      • Portland
        • Collins Hill
          • Strickland pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries)
[Dickinsonite-(KMnNa)] Schairer, J. F. (1926): Lithiophilite and Other Rare Phosphates from Portland, Connecticut. American Mineralogist: 11(4): 101-104.; Schooner, Richard. (1955): 90 Minerals from 1 Connecticut Hill. Rocks & Minerals: 30(7-8): 351-8.
  • Maine
    • Androscoggin Co.
      • Auburn
        • East Mount Apatite District
[Dickinsonite-(KMnNa)] No reference listed
[Dickinsonite-(KMnNa)] "Maine Mineral Localities, 3rd Ed." by Thompson, W.B., et.al., 1998
        • West Mount Apatite District
[Dickinsonite-(KMnNa)] No reference listed
[Dickinsonite-(KMnNa)] No reference listed
[Dickinsonite-(KMnNa)] No reference listed
      • Poland
[Dickinsonite-(KMnNa)] King, V. T. and Foord, E. E., 1994, Mineralogy of Maine, Descriptive Mineralogy, volume 1, Maine Geological Survey, Augusta, Maine, USA, pp. 418 + 88 plates.
    • Oxford Co.
      • Greenwood
[Dickinsonite-(KMnNa)] "Maine Mineral Localities, 3rd Ed." by Thompson, W.B., et.al., 1998
        • Uncle Tom Mountain
[Dickinsonite-(KMnNa)] No reference listed
      • Hebron
[Dickinsonite-(KMnNa)] Van King
      • Newry
[Dickinsonite-(KMnNa)] King, V. T., 2006, Minerals of Halls Ridge and Plumbago-Puzzle Mountain, Newry, ... Maine, Mineral News, v. 22(6): p. 1-3.
      • Rumford
[Dickinsonite-(KMnNa)] Guidebook 1 to Mineral Collecting in the Maine Pegmatite Belt
  • New Hampshire
    • Cheshire Co.
      • Alstead
[Dickinsonite-(KMnNa)] Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
    • Grafton Co.
      • Alexandria
[Dickinsonite-(KMnNa)] Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
      • Groton
[Arrojadite-(KFe)] Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
[Arrojadite-(KFe)] Mineralogical Record (1973) 4:103-130
[Arrojadite-(KFe)] Mineralogical Record (1973) 4:103-130
[Arrojadite-(KFe)] Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index; Mineralogical Record (1973) 4:103-130
    • Sullivan Co.
      • Newport
[Arrojadite-(KFe)] Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV; Rocks & Minerals (2005) 80:242-261 New Hampshire Mineral Locality Index
  • North Carolina
    • Gaston Co.
      • Bessemer City
[Dickinsonite-(KMnNa)] No reference listed
  • South Dakota
    • Custer Co.
      • Custer District
        • Custer
[Arrojadite-(KFe)] Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV
    • Pennington Co.
      • Keystone District
        • Glendale
[Arrojadite-(BaFe)] Loomis, T (2011), "News from the Black Hills, South Dakota", Mineral News, in press; Loomis, T (2011), "News from the Black Hills, South Dakota", Mineral News, in press
        • Keystone
[Arrojadite-(KFe)] Rocks & Minerals: 67(6): 380-388.
[Arrojadite-(KFe)] 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: 680, 687; Mineralogical Record: 17: 300.
[Arrojadite-(KFe)] Handbook of Mineralogy
Zimbabwe
 
  • Mashonaland West
    • Karoi District (Urungwe; Hurungwe District)
[Arrojadite-(KFe)] Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV
      • Mwami (Miami)
[Arrojadite-(KFe)] Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV
[Arrojadite-(KFe)] Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV
[Arrojadite-(KFe)] Anthony, Bideaux, Bladh, Nichols: Handbook of Mineralogy, Vol. IV
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