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Jahnsite Subgroup

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About Jahnsite SubgroupHide

Formula:
XM1M22M32(H2O)8(OH)2(PO4)4
Member of:
The Jahnsite subgroup is a subgroup of the Jahnsite group. The group is defined by having Fe3+ as the dominant cation at the M3 site (Fe3+>Al).




Classification of Jahnsite SubgroupHide

Notes:
IMA Approved Group Name
Approval History:
Established and approved by IMA in april 2018 (Nomenclature proposals).

Chemical Properties of Jahnsite SubgroupHide

Formula:
XM1M22M32(H2O)8(OH)2(PO4)4

Crystal StructureHide

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IDSpeciesReferenceLinkYearLocalityPressure (GPa)Temp (K)
0000414Jahnsite-(CaMnMg)Moore P B, Araki T (1974) Jahnsite, CaMnMg2(H2O)8Fe2(OH)2[PO4]4: A novel stereoisomerism of ligands about octahedral corner-chains American Mineralogist 59 964-9731974Tip Top mine, Custer Country, South Dakota, USA0293
0004587Jahnsite-(NaFeMg)Kampf A R, Steele I M, Loomis T A (2008) Jahnsite-(NaFeMg), a new mineral from the Tip Top mine, Custer County, South Dakota: Description and crystal structure American Mineralogist 93 940-9452008Tip Top mine, Custer County, South Dakota0293
CIF Raw Data - click here to close

Synonyms of Jahnsite SubgroupHide

Relationship of Jahnsite Subgroup to other SpeciesHide

Member of:
Other Members of this group:
Whiteite SubgroupXM1M22M32(H2O)8(OH)2(PO4)4
Group Members:
Jahnsite-(CaFeFe) {Ca}{Fe2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon.
Jahnsite-(CaFeMg) CaFe2+Mg2Fe3+2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
Jahnsite-(CaMnFe) {Ca}{Mn2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
Jahnsite-(CaMnMg) {Ca}{Mn2+}{(Mg,Fe2+)2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
Jahnsite-(CaMnMn) {Ca}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
Jahnsite-(CaMnZn) CaMn2+Zn2Fe3+2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
Jahnsite-(MnMnFe) Mn2+Mn2+Fe2+2Fe3+2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
Jahnsite-(MnMnMg) Mn2+Mn2+Mg2Fe3+2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
Jahnsite-(MnMnMn) {Mn2+}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon.
Jahnsite-(MnMnZn) Mn2+Mn2+Zn2Fe3+2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
Jahnsite-(NaFeMg) NaFe3+Mg2Fe3+2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
Jahnsite-(NaMnMg) {(Na,Ca)}{(Mn2+,Fe3+)}{(Mg,Fe3+)2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
Jahnsite-(NaMnMn) NaMn2+(Mn2+Fe3+)Σ2Fe3+2(PO4)4(OH)2 · 8H2OMon. 2/m : P2/b
Keckite CaMn2+(Fe3+Mn2+)Fe3+2(PO4)4(OH)3 · 7H2OMon. 2/m : P2/b

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 Jahnsite SubgroupHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
CNMNC Newsletter No 43, June 2018, page 787; Mineralogical Magazine: 82: 779-785

Internet Links for Jahnsite SubgroupHide

Localities for Jahnsite SubgroupHide

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.
Antarctica
 
  • Eastern Antarctica
    • Princess Elizabeth Land
      • Ingrid Christensen Coast
        • Prydz Bay
          • Larsemann Hills (Larseman Hills)
            • Stornes Peninsula
[Jahnsite-(CaFeMg)] Grew, E.S., Armbruster, T., Medenbach, O., Yates, M.G., Carson, C.J. (2007): Tassieite, (Na,□)Ca2(Mg,Fe2+,Fe3+)2(Fe3+,Mg)2(Fe2+,Mg)2>(PO4)6·2H2O, a new hydrothermal wicksite-group mineral in fluorapatite nodules from granulite-facies paragneiss in the Larsemann Hills, Prydz Bay, East Antarctica. The Can. Mineral.: 45(2): 293-305
Argentina
 
  • Córdoba Province
[Jahnsite-(CaMnMg)] Colombo, F., & Sfragulla, J. (2012). The Garnet–phosphate Buffer In Peraluminous Granitic Magmas: A Case Study From Pegmatites In The Pocho District, Córdoba, Argentina. The Canadian Mineralogist, 50(6), 1555-1571.
[Jahnsite-(CaMnMg)] Colombo, F., & Sfragulla, J. (2012). The garnet–phosphate buffer in peraluminous granitic magmas: a case study from pegmatites in the Pocho district, Córdoba, Argentina. The Canadian Mineralogist, 50(6), 1555-1571.
  • San Luis Province
    • San Martín department
      • Las Aguadas
[Jahnsite-(CaMnMg)] Roda-Robles, E., Galliski, M. A., Roquet, M. B., Hatert, F., & de Paeseval, P. (2012). Phosphate nodules containing two distinct assemblages in the Cema granitic pegmatite, San Luis province, Argentina: Paragenesis, composition and significance. The Canadian Mineralogist, 50(4), 913-931.
  • Tucumán Province
    • Tafí del Valle Department
      • Estancia Anchilla
[Jahnsite-(CaMnMg)] Raúl Jorge Tauber Larry
[Jahnsite-(CaMnMg)] Raúl J. Tauber Larry (2012)
Australia
 
  • South Australia
    • Eyre Peninsula
      • Middleback Range
        • Iron Knob
[Jahnsite-(CaMnMn)] Australian Jour.Min. v.6, no. 1
    • Mt Lofty Ranges
      • North Mt Lofty Ranges
        • Kapunda
[Jahnsite-(NaFeMg)] Peter Elliott
    • Olary Province
      • Bimbowrie Conservation Park
        • Old Boolcoomata Station
          • White Rock Feldspar Mine
[Jahnsite-(NaMnMg)] CNMNC Newsletter 44; Kampf, A. R., Elliott, P., Nash, B. P., Chiappino, L., & Varvello, S. (2018). Jahnsite-(NaMnMg), a new jahnsite-group mineral from the Sapucaia mine, Brazil and the White Rock No. 2 quarry, Australia. The Canadian Mineralogist, 56(6), 871-882.
      • Boolcoomatta Reserve (Boolcoomata Station)
[Jahnsite-(NaMnMn)] Elliott, P., Kampf, A.R. (2019): Jahnsite-(NaMnMn), IMA 2019-051. CNMNC Newsletter No. 52; Mineralogical Magazine: 83; https://doi.org/10.1180/mgm.2019.73; http://forum.amiminerals.it/viewtopic.php?f=5&t=15946
  • Victoria
    • East Gippsland Shire
      • Omeo
        • Mt Wills mining district
          • Dorchap Dyke Swarm
[Keckite] Dr. Bill Birch - Museum Victoria
  • Western Australia
    • Meekatharra Shire
      • Milgun Station
Peter Downes, Benjamin Grguric, Margot Willing, Geoff Deacon, Michael Verrall (2018) Variscite and associated phosphate minerals from the Mt Deverell variscite deposits, Milgun Station, Gascoyne region, Western Australia. in abstracts of the 22nd IMA Meeting Melbourne p 319
Austria
 
  • Carinthia
    • Wolfsberg District
      • Frantschach-Sankt Gertraud
        • Brandrücken
[Jahnsite-(CaMnMg)] J. Taucher, B. Moser, W. Postl, F. Brandstätter: Carinthia II 182./102.:115-124 (1992)
Bolivia
 
  • La Paz
    • Larecaja Province
[Jahnsite-(MnMnMn)] Joy Desor analyses by EDS and Raman, December 2019.
Brazil
 
  • Minas Gerais
    • Conselheiro Pena
[Jahnsite-(CaMnMg)] Sergio Varvello collection
[Jahnsite-(MnMnMn)] Baijot, M., Hatert, F., Dal Rio, F. & Philipo, S. (2014) Mineralogy and petrography of phosphate mineral association from the Jocão pegmatite, Minas Gerais, Brazil. Canadian Mineralogist 52, 373-397.
    • Galiléia
      • Sapucaia do Norte
[Jahnsite-(CaMnFe)] Cassedanne, J.P. & Baptista, A. (1999): Famous Mineral Localities: The Sapucaia Pegmatite Minas Gerais, Brazil. Mineralogical Record, 30: 347-360 + 365
    • Itinga
[Jahnsite-(CaMnMg)] Van King
DR Congo
 
  • South Kivu
    • Shabunda Territory
[Keckite] Mills, S. J., Birch, W. D., Kampf, A. R. & van Wambeke, L. (2010) Kobokoboite, Al6(PO4)4(OH)6•11H2O, a new mineral from the Kobokobo pegmatite, Democratic Republic of the Congo. European Journal of Mineralogy, 22(2)
Finland
 
  • Pirkanmaa
    • Orivesi
      • Eräjärvi area
Lahti, S.I. (1981) On the granitic pegmatites of the Eräjärvi area in Orivesi, southern Finland. Geological Survey of Finland Bulletin, 314, 51-56.
[Jahnsite-(CaMnFe)] Sandström, F. & Lahti, S.I. (2009): Viitaniemipegmatiten i Eräjärvi, Orivesi, Finland. Litiofilen 26 (1): 11-38
  • South Ostrobothnia
    • Kuortane
[Jahnsite-(CaMnMn)] Ilkka Mikkola collectin, microprobe and XRD identification.
France
 
  • Occitanie
    • Pyrénées-Orientales
[Jahnsite-(CaMnMn)] Berbain,C., Riley, T., Favreau, G., (2012): Phosphates des pegmatites du massif des Albères (Pyrénées-Orientales). Le Cahier des Micromonteurs. 117, 121-172
      • Céret
        • Argelès-sur-Mer
[Jahnsite-(CaMnFe)] BERBAIN. C, RILEY. T, FAVREAU. G, (2012). Phosphates des pegmatites du massif des Albères. Ed Association française de Microminéralogie,
        • Collioure
[Jahnsite-(CaMnFe)] BERBAIN. C, RILEY. T, FAVREAU. G, (2012) Phosphates des pegmatites du massif des Albères. Ed Association Française de Microminéralogie
Germany
 
  • Bavaria
    • Lower Bavaria
      • Regen District
        • Zwiesel
          • Rabenstein
[Keckite] Weiss: "Mineralfundstellen, Deutschland West", Weise (Munich), 1990
    • Upper Palatinate
      • Neustadt an der Waldnaab District
        • Pleystein
[Keckite] Dill, H. G., Melcher, F., Gerdes, A., & Weber, B. (2008). The origin and zoning of hypogene and supergene Fe–Mn–Mg–Sc–U–REE phosphate mineralization from the newly discovered Trutzhofmühle aplite, Hagendorf pegmatite province, Germany. The Canadian Mineralogist, 46(5), 1131-1157.
        • Waidhaus
[Keckite] Dill, H.G. (2009) The Hagendorf-Pleystein phosphate pegmatites (NE Bavaria, Germany) - A mineralogical, chronological and sedimentological overview. Estudos Geológicos: 19(2): 117-120.
[Keckite] Neues Jahrb.Min.,Abh.(1979) 134, 183-192; Hochleitner, R. and Fehr, K. T. (2010): The keckite problem and its bearing on the crystal chemistry of the jahnsite group: Mössbauer and electron-microprobe studies. Can. Mineral. 48, 1445-1453.; Grey, I. E., Macrae, C. M., Keck, E., & Birch, W. D. (2012). Aluminium-bearing strunzite derived from jahnsite at the Hagendorf-Süd pegmatite, Germany. Mineralogical Magazine, 76(5), 1165-1174.
[Jahnsite-(CaMnZn)] Grey, I.E., Keck, E., Kampf, A.R., MacRae, C.M., Cashion, J.D. and Glenn, M. (2019): Jahnsite-(CaMnZn), IMA 2019-073. CNMNC Newsletter No. 52; Mineralogical Magazine: 83; https://doi.org/10.1180/mgm.2019.73; http://forum.amiminerals.it/viewtopic.php?f=5&t=15946; Grey, I.E., Keck, E., Kampf, A.R., MacRae, C.M., Cashion, J.D., Glenn, A.M. (2020): Jahnsite-(CaMnZn) from the Hagendorf-Süd pegmatite, Oberpfalz, Bavaria, and structural flexibility of jahnsite-group minerals. Mineralogical Magazine 84, 547-553.
[Jahnsite-(CaMnMn)] Steffen Michalski collection - ex Kastning collection
Italy
 
  • Lombardy
    • Lecco Province
      • Colico
[Jahnsite-(CaMnMn)] VIGNOLA, P., & DIELLA, V. (2007). Phosphates from Piona granitic pegmatites (Central Southern Alps, Italy). Granitic Pegmatites: the State of the Art. Book of Abstr.(T. Martins & R. Vieira, eds.). Universidade do Porto, Departamento de Geologia, Memórias, 8, 102-103.
[Jahnsite-(MnMnFe)] Vignola, P., Hatert, F., Rotiroti, N., Nestola, F., Risplendente, A. and Vanini, F.(2018) Jahnsite-(MnMnFe), IMA 2018-096. CNMNC Newsletter No. 46, December 2018, page xxxx; Mineralogical Magazine, 82, xxxx–xxxx.
      • Dorio
[Jahnsite-(CaMnFe)] Vignola P., Diella V., Ferrari E.S., Fransolet A.-M. (2011): Complex mechanisms of alteration in a graftonite + sacropside+ triphylite association from the Luna pegmatite, Piona, Lecco Province, Italy. Can. Mineral., 49, 765-776.
  • Trentino-Alto Adige
    • Trento Province (Trentino)
      • Rabbi
        • Ceresè
[Jahnsite-(CaMnFe)] Vignola, P., Zucali, M., Rotiroti, N., Marotta, G., Risplendente, A., Pavese, A., ... & Bertoldi, G. (2018). The Chrysoberyl-and Phosphate-Bearing Albite Pegmatite of Malga Garbella, Val Di Rabbi, Trento Province, Italy. The Canadian Mineralogist, 56(4), 411-424.
Japan
 
  • Hyogo Prefecture
    • Kobe city
      • Nishi-ku
[Jahnsite-(CaFeFe)] Ganko-Gakkai Koen-Yoshi (Abstracts of the Meetings of Japanese Association of Mineralogists...) (in japanese) 40 (1995)
Morocco
 
  • Drâa-Tafilalet Region
    • Ouarzazate Province
      • Tazenakht
[Jahnsite-(NaFeMg)] Kampf, A.R., Mills, S.J., Housley, R.M., Favreau, G., Boulliard, J-C, and Bourgoin, V. (2012) Angarfite, a new mineral species from the Angarf-sud pegmatite, Morocco : description and crystal structure. The Canadian Mineralogist Vol. 50, pages 781-791. DOI 10.3749/canmin.50.4.781
  • Marrakesh-Safi Region
    • Rehamna Province
      • Jebilet Mtn (Djebilet Mtn)
[Jahnsite-(CaMnMg)] 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.
[Jahnsite-(CaMnFe)] Favreau, G. (2012): Deux pegmatites à phosphates de Sidi Bou Othmane (Maroc). Le Cahier des Micromonteurs, 3-2012, 71-109
Poland
 
  • Lower Silesian Voivodeship
    • Świdnica County
      • Gmina Świdnica
[Jahnsite-(CaMnFe)] Włodek, A., Grochowina, A., Gołębiowska, B., Pieczka, A. (2015): A phosphate-bearing pegmatite from Lutomia and its relationships to other pegmatites of the Góry Sowie Block, southwestern Poland. Journal of Geosciences: 60: 45-72
Portugal
 
  • Beja
    • Odemira
      • São Luís
[Jahnsite-(CaMnMn)] Alves, P. and Kampf, A.R. (2017) A mina de ferro e manganês da Herdade dos Pendões, Odemira, sudoeste de Portugal. Acopios, 8: 17-62. (in Portuguese).
  • Guarda
    • Gouveia
      • Folgosinho
[Keckite]
    • Sabugal
      • Bendada
[Jahnsite-(CaMnMn)] Sopas de Pedra, A. M. Galopim de Carvalho, Gradiva, Lisbon, Portugal
[Jahnsite-(CaMnMn)] Pedro Alves collection.
  • Viseu
    • Mangualde
[Jahnsite-(CaMnMn)] Am. Min.(1990), 75, 404-409
      • Mangualde, Mesquitela e Cunha Alta
[Jahnsite-(CaMnMn)] Pedro Alves collection
    • Sátão
      • Ferreira de Aves
        • Aldeia Nova
[Jahnsite-(CaMnFe)] Pedro Alves collection and analytical data
    • Vila Nova de Paiva
[Jahnsite-(CaMnFe)] Identified in Rebentão Mine
      • Queiriga
        • Lagares do Estanho Mines
[Jahnsite-(CaMnFe)] Pedro Alves collection and analytical data
Russia
 
  • Murmansk Oblast
[Jahnsite-(CaMnFe)] Rruff specimen R070733
Spain
 
  • Castile and Leon
    • Salamanca
      • Garcirrey
[Jahnsite-(CaMnFe)] Calvo, M. (2015): Minerales y Minas de España. Vol. VII, Fosfatos, arseniatos y vanadatos. Escuela Técnica Superior de Ingenieros de Minas de Madrid - Fundación Gómez Pardo. 479 pp
      • Navasfrías
[Keckite] http://www.foro-minerales.com/forum/viewtopic.php?p=85470#85470
  • Extremadura
    • Badajoz
      • Tres Arroyos
Garate-Olave I, Roda-Robles M E, Gil-Crespo P, Pesquera A (2014) Fe, Mg and Mn distribution among tourmaline, micas and phosphates from the Tres Arroyos granitic pegmatites (Central Iberian Zone, Badajoz, Spain). 21 st meeting of the International Mineralogical Association. p 265
  • Galicia
    • Pontevedra
      • Forcarei
[Jahnsite-(CaMnFe)] Calvo Rebollar, Miguel. (2015). Minerales y Minas de España. Vol. VII. Fosfatos, Arseniatos y Vanadatos. Escuela Técnica Superior de Ingenieros de Minas de Madrid. Fundación Gómez Pardo. 479 págs.
Switzerland
 
  • Ticino
    • Locarno
      • Brissago
[Jahnsite-(CaMnFe)] Stalder, H. A., Wagner, A., Graeser, S. and Stuker, P. (1998): "Mineralienlexikon der Schweiz", Wepf (Basel), p. 226.
USA
 
  • California
    • San Diego County
      • Pala Mining District
        • Pala
          • Tourmaline Queen Mountain (Pala Mtn; Queen Mtn)
[Jahnsite-(MnMnMn)] Min Mag 42 (1978), 309
  • Maine
    • Cumberland Co.
      • Baldwin
        • West Baldwin
[Jahnsite-(CaMnMn)] No reference listed
    • Oxford County
      • Greenwood
        • Uncle Tom Mountain
[Jahnsite-(MnMnMn)] Thompson, W, Joyner, D., Woodman, R., and King, V., 1998. Maine Mineral Localities, 3rd ed.; King and Foord, 1994, Mineralogy of Maine
      • Newry
[Jahnsite-(CaMnFe)] King, V. and Foord, E., 1994, Mineralogy of Maine, V. 1; King, V. (ed.), 2000, Mineralogy of Maine, V. 2.
[Jahnsite-(CaMnFe)]
[Jahnsite-(CaMnFe)] King, V. and Foord, E., 1994, Mineralogy of Maine, V. 1; King, V. (ed), 2000, Mineralogy of Maine, V. 2.
      • Paris
[Jahnsite-(CaMnMn)] 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. "Maine Mineral Localites, 3rd Ed." by Thompson, W.B., et.al. , 1998; Mineralogical Record 22:382
[Jahnsite-(CaMnFe)]
      • Rumford
[Jahnsite-(CaMnFe)] King & Foord, 1994. Mineralogy of Maine, Vol.1, p.264.
  • Nevada
    • Eureka Co.
      • Lynn Mining District
[Jahnsite-(CaMnMg)] NBMG Spec. Pub. 31 Minerals of Nevada
  • New Hampshire
    • Grafton Co.
      • Groton
[Jahnsite-(CaMnMg)] No reference listed
[Jahnsite-(CaMnFe)] Nizamoff, J.W., Simmons, W. B., and Falster, A. U. (2004) Phospate mineralogy and paragenesis of the Palermo # 2 pegmatite, North Groton, New Hampshire. Geological Society of America Abstracts with Programs, 36 (5) :115
[Jahnsite-(CaMnFe)] Journal of Pegmatology vol. 1, no. 1 ; Geological Society of America Abstracts with Programs, Vol. 36, No. 5, p. 115; NIZAMOFF, J. W. (2004, November). Phosphate mineralogy and paragenesis of the Palermo# 2 pegmatite, North Groton, New Hampshire. In 2004 Denver Annual Meeting.
  • North Carolina
    • Cleveland Co.
      • Kings Mountain Mining District
[Jahnsite-(CaMnMg)]
  • South Dakota
    • Custer Co.
      • Custer Mining District
        • Custer
[Jahnsite-(CaMnMn)] Tony Nikischer;
        • Fourmile
[Jahnsite-(CaMnMg)] Moore, P.B., Araki, T. (1974) Jahnsite, CaMn2+Mg2(H2O)8Fe8+2(OH)2[PO4]4: A novel stereoisomerism of ligands about octahedral corner-chains. American Mineralogist: 59: 964-973.; Kampf, A.R., Steele, I.M., Loomis, T.A. (2008) Jahnsite-(NaFeMg), a new mineral from the Tip Top mine, Custer County, South Dakota: Description and crystal structure. American Mineralogist: 93: 940-945.
    • Pennington Co.
      • Keystone Mining District
        • Glendale
[Jahnsite-(CaMnMg)] Paul B. Moore (1974) Jahnsite, Segelerite, and Robertsite,Three New Phosphate Species. Am. Min. 59: 48-59.
        • Keystone
[Jahnsite-(CaMnMg)] Rocks & Minerals: 67(6): 380-388.
 
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