Movatterモバイル変換

[0]ホーム
URL:

Log InRegister
AboutSupport UsPhotosDiscussionsSearchLearnMore
Quick Links :The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic Time
Minerals by PropertiesMinerals by ChemistryAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Jahnsite-(CaMnFe)

A valid IMA mineral species
This page is currently not sponsored.Click here to sponsor this page.
Photos of Jahnsite-(CaMnFe) (46)Discuss Jahnsite-(CaMnFe)
Jahnsite-(CaMnFe) GallerySearch Photos of Jahnsite-(CaMnFe)
EditAdd SynonymEdit CIF structuresClear Cache
{Ca}{Mn2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2O
Colour:
Brown, golden brown, purplish brown, yellow, yellow-orange
Lustre:
Sub-Adamantine, Sub-Vitreous, Resinous
Hardness:
4
Specific Gravity:
2.86
Crystal System:
Monoclinic
Member of:
Jahnsite Subgroup >Jahnsite Group
Name:
Named in 1974 by Paul (Paulus) Brian Moore and Takaharu Araki in honor of Richard Henry Jahns (March 10, 1915 Los Angeles, California, USA - December 31, 1983 Palo Alto, California, USA), mineralogist and pegmatite expert, Stanford University, Palo Alto, California, USA. The suffix indicates metal site occupancies.
Type Locality:
ⓘFletcher Mine, Groton, Grafton County, New Hampshire, USA
Jahnsite Subgroup.

Comparekeckite.


Unique Identifiers
IMA status notes:
Redefined by the IMA
IMA Formula:
CaMn2+Fe2+2Fe3+2(PO4)4(OH)2 · 8H2O
Approval year:
1978
Approval history:
1978: Redefined by IMA by special procedure.
Type description reference:
Moore, Paul Brian, Ito, Jun (1978) I. Whiteite, a new species, and a proposed nomenclature for the jahnsite-whiteite complex series. II. New data on xanthoxenite. III. Salmonsite discredited.Mineralogical Magazine, 42 (323) 309-323doi:10.1180/minmag.1978.042.323.01

Classification of Jahnsite-(CaMnFe)

8 : PHOSPHATES, ARSENATES, VANADATES
D : Phosphates, etc. with additional anions, with H2O
H : With large and medium-sized cations, (OH, etc.):RO4< 1:1
Dana 8th ed.:
42.11.2.2

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : (AB)3(XO4)2Zq·xH2O
Hey's CIM Ref.:
19.12.41

19 : Phosphates
12 : Phosphates of Mn

Mineral Symbols
Transparency:
Transparent, Translucent
Colour:
Brown, golden brown, purplish brown, yellow, yellow-orange
Streak:
White
Hardness:
4 onMohs scale
Tenacity:
Brittle
Cleavage:
Distinct/Good
Good on {001}
Density:
2.86 g/cm3 (Measured)    2.88 g/cm3 (Calculated)

Optical Data of Jahnsite-(CaMnFe)
Surface Relief:
Moderate
Dispersion:
r > v strong
Pleochroism:
Visible
Comments:
X = pale yellow brown, Y = yellow brown, Z = dark yellow brown

Chemistry of Jahnsite-(CaMnFe)

Crystallography of Jahnsite-(CaMnFe)
General Appearance of Type Material:
Brown striated tablets in clusters
Geological Setting of Type Material:
Late stage phosphate mineralization in granite pegmatite.
Reference:
Moore, Paul Brian, Ito, Jun (1978) I. Whiteite, a new species, and a proposed nomenclature for the jahnsite-whiteite complex series. II. New data on xanthoxenite. III. Salmonsite discredited.Mineralogical Magazine, 42 (323) 309-323doi:10.1180/minmag.1978.042.323.01

Other Language Names for Jahnsite-(CaMnFe)

Relationship of Jahnsite-(CaMnFe) to other Species
Other Members of Jahnsite Subgroup:
Jahnsite-(CaFeFe){Ca}{Fe2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon.
Jahnsite-(CaFeMg){Ca}{Fe2+}{Mg2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m :P2/b
Jahnsite-(CaMgMg){Ca}{Mg}{Mg2}{Fe3+2}(PO4)4(OH)2 · 8H2O
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){Ca}{Mn2+}{Zn2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m :P2/b
Jahnsite-(MnMnFe){Mn2+}{Mn2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m :P2/b
Jahnsite-(MnMnMg){Mn2+}{Mn2+}{Mg2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m :P2/b
Jahnsite-(MnMnMn){Mn2+}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m :P21/b
Jahnsite-(MnMnZn){Mn2+}{Mn2+}{Zn2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m :P2/b
Jahnsite-(NaFeMg){Na}{Fe3+}{Mg2}{Fe3+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){Na}{Mn2+}{(Mn2+,Fe3+)2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m :P2/b
KeckiteCaMn2+(Fe3+Mn2+)Fe3+2(PO4)4(OH)3 · 7H2OMon. 2/m :P2/b

Common AssociatesMon. 2/m :P21/b8.DH.Whiteite-(MnMnMn)Mn2+Mn2+Mn2+2Al2(PO4)4(OH)2 · 8H2OMon. 2/m :P2/b8.DH.FerroberauniteFe2+Fe3+5(PO4)4(OH)5 · 6H2OMon. 2/m :B2/b8.DH.RegeriteKFe6(PO4)4(OH)7(H2O)6 · 4H2OMon. 2/m :P21/b8.DH.Ammoniotinsleyite(NH4)Al2(PO4)2(OH) · 2H2OMon. 2/m :P21/m8.DH.Dendoraite-(NH4)(NH4)2NaAl(C2O4)(PO3OH)2(H2O)2Mon. 2/m8.DH.Rowleyite[Na(NH4,K)9Cl4][V5+,4+2(P,As)O8]6 · n[H2O,Na,NH4,K,Cl]Iso.8.DH.HochleitneriteMn2Ti3(PO4)4O2(H2O)2 · 14H2OOrth.mmm(2/m2/m2/m) :Pbca8.DH.Whiteite-(CaMnFe)CaMnFe2Al2(PO4)4(OH)2 · 8H2OMon. 2/m8.DH.05MinyuliteKAl2(PO4)2F · 4H2OOrth.mm2 :Pba28.DH.10LeucophosphiteKFe3+2(PO4)2(OH) · 2H2OMon. 2/m :P21/b8.DH.10TinsleyiteKAl2(PO4)2(OH) · 2H2OMon.8.DH.10Spheniscidite(NH4,K)(Fe3+,Al)2(PO4)2(OH) · 2H2OMon. 2/m8.DH.15Jahnsite-(NaMnMn){Na}{Mn2+}{(Mn2+,Fe3+)2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m :P2/b8.DH.15Jahnsite-(CaMnMg){Ca}{Mn2+}{(Mg,Fe2+)2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m :P2/b8.DH.15Jahnsite-(CaMnMn){Ca}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m :P2/b8.DH.15Whiteite-(MnMnMg)MnMnMg2Al2(PO4)4(OH)2 · 8H2OMon. 2/m :P2/b8.DH.15Jahnsite-(CaMnZn){Ca}{Mn2+}{Zn2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m :P2/b8.DH.15Jahnsite-(MnMnMg){Mn2+}{Mn2+}{Mg2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m :P2/b8.DH.15Jahnsite-(MnMnFe){Mn2+}{Mn2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m :P2/b8.DH.15Jahnsite-(CaFeFe){Ca}{Fe2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon.8.DH.15Rittmannite{(Mn2+,Ca)}{Mn2+}{(Fe2+,Mn2+,Mg)2}{(Al,Fe3+)2}(PO4)4(OH)2 · 8H2OMon. 2/m :P2/b8.DH.15KeckiteCaMn2+(Fe3+Mn2+)Fe3+2(PO4)4(OH)3 · 7H2OMon. 2/m :P2/b8.DH.15Jahnsite-(NaMnMg){(Na,Ca)}{(Mn2+,Fe3+)}{(Mg,Fe3+)2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m :P2/b8.DH.15Jahnsite-(CaMgMg){Ca}{Mg}{Mg2}{Fe3+2}(PO4)4(OH)2 · 8H2O8.DH.15Jahnsite-(MnMnZn){Mn2+}{Mn2+}{Zn2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m :P2/b8.DH.15Whiteite-(CaMgMg)CaMg3Al2(PO4)4(OH)2 · 8H2OMon. 2/m :P2/b8.DH.15Whiteite-(CaFeMg){Ca}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2OMon. 2/m :P21/b8.DH.15Whiteite-(CaMnMg){Ca}{Mn2+}{Mg2}{Al2}(PO4)4(OH)2 · 8H2OMon. 2/m8.DH.15Whiteite-(MnFeMg){(Mn2+,Ca)}{(Fe2+,Mn2+)}{Mg2}{Al2}(PO4)4(OH)2 · 8H2OMon. 2/m :P21/b8.DH.15Jahnsite-(MnMnMn){Mn2+}{Mn2+}{Mn2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m :P21/b8.DH.15Kaluginite(Mn2+,Ca)MgFe3+(PO4)2(OH) · 4H2OOrth.8.DH.15Jahnsite-(CaFeMg){Ca}{Fe2+}{Mg2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m :P2/b8.DH.15Whiteite-(CaMnMn){Ca}{Mn2+}{Mn2}{Al2}(PO4)4(OH)2 · 8H2OMon. 2/m :P2/b8.DH.15Jahnsite-(NaFeMg){Na}{Fe3+}{Mg2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m :P2/b8.DH.20SegeleriteCa2 Mg2 Fe3+2(PO4)4(OH)2 · 8H2OOrth.mmm(2/m2/m2/m) :Pcca8.DH.20Lun'okite(Mn,Ca)(Mg,Fe,Mn)Al(PO4)2OH · 4H2OOrth.mmm(2/m2/m2/m) :Pbca8.DH.20Manganosegelerite(Mn2+,Ca)(Mn2+,Fe2+,Mg)Fe3+(PO4)2(OH) · 4H2OOrth.mmm(2/m2/m2/m) :Pbca8.DH.20WilhelmvierlingiteCaMnFe3+(PO4)2(OH) · 2H2OOrth.mmm(2/m2/m2/m) :Pbca8.DH.20JuonniiteCaMgSc(PO4)2(OH) · 4H2OOrth.mmm(2/m2/m2/m) :Pbca8.DH.20OveriteCaMgAl(PO4)2(OH) · 4H2OOrth.mmm(2/m2/m2/m) :Pbca8.DH.25CalcioferriteCa2Fe3+2(PO4)3(OH) · 7H2OMon. 2/m :B2/b8.DH.25ZodaciteCa4Mn2+Fe3+4(PO4)6(OH)4 · 12H2OMon.8.DH.25FanfaniiteCa4MnAl4(PO4)6(OH)4 · 12H2OMon. 2/m :B2/b8.DH.25KingsmountiteCa3MnFeAl4(PO4)6(OH)4 · 12H2OTric.1 :P18.DH.25MontgomeryiteCa4MgAl4(PO4)6(OH)4 · 12H2OMon. 2 :B28.DH.30PararobertsiteCa2Mn3+3(PO4)3O2 · 3H2OMon. 2/m :P21/b8.DH.30RobertsiteCa2Mn3+3(PO4)3O2 · 3H2OMon.m :Bb8.DH.30ArseniosideriteCa2Fe3+3(AsO4)3O2 · 3H2OMon. 2/m :B2/b8.DH.30Sailaufite(Ca,Na,◻)2Mn3+3(AsO4)2(CO3)O2 · 3H2OMon.m :Bm8.DH.30MitridatiteCa2Fe3+3(PO4)3O2 · 3H2OMon. 2/m :B2/b8.DH.30KolfaniteCa2Fe3+3O2(AsO4)3 · 2H2OMon.8.DH.35MantienneiteKMg2Al2Ti(PO4)4(OH)3 · 15H2OOrth.mmm(2/m2/m2/m) :Pbca8.DH.35Sperlingite (H2O)K(Mn2+Fe3+)(Al2Ti)(PO4)4[O(OH)] [(H2O)9(OH)] · 4H2OMon. 2/m :P21/b8.DH.35PaulkerriteK(Mg,Mn2+)2(Fe3+,Al,Ti,Mg)2Ti(PO4)4(OH)3 · 15H2OMon.m8.DH.35Hydroxylbenyacarite(H2O)2Mn2(Ti2Fe)(PO4)4[O(OH)](H2O)10 · 4H2OOrth.mmm(2/m2/m2/m) :Pbca8.DH.35MacraeiteK(H2O)Mn2(Fe2Ti)(PO4)4[O(OH)](H2O)10 · 4H2OMon. 2/m :P21/b8.DH.35Benyacarite(H2O)2Mn2Ti2Fe3+(PO4)4(OF)(H2O)10 · 4H2OOrth.mmm(2/m2/m2/m) :Pbca8.DH.35Fluormacraeite [(H2O)K]Mn2(Fe2Ti)(PO4)4(OF)(H2O)10 · 4H2OMon. 2/m :P21/b8.DH.40XanthoxeniteCa4Fe3+2(PO4)4(OH)2 · 3H2OTric.1 :P18.DH.45MahnertiteNaCu3(AsO4)2Cl · 5H2OTet. 4/mmm(4/m2/m2/m) :I4/mmm8.DH.50AndyrobertsiteKCdCu5(AsO4)4(H2AsO4) · 2H2OMon. 2/m :P21/m8.DH.50CalcioandyrobertsiteKCaCu5(AsO4)4(H2AsO4) · 2H2OMon. 2/m :P21/m8.DH.55EnglishiteK3Na2Ca10Al15(PO4)21(OH)7 · 26H2OMon. 2/m8.DH.60BouazzeriteBi6(Mg,Co)11Fe3+14(AsO4)18(OH)4O12 · 86H2OMon. 2/m8.DH.65GalliskiiteCa4Al2(PO4)2F8 · 5H2OTric.1 :P18.DH.70JoteiteCa2CuAl(AsO4)[AsO3(OH)]2(OH)2 · 5H2OTric.1 :P18.DH.75KampeliteBa6Mg3Sc8(PO4)12(OH)6 · 7H2OOrth.mmm(2/m2/m2/m) :Pnma8.DH.80KapundaiteNaCaFe4(PO4)4(OH)3 · 5H2OTric.1 :P18.DH.85VaniniiteCa2Mn2+3Mn3+2O2(AsO4)4 · 2H2OMon. 2/m :P21/b

Fluorescence of Jahnsite-(CaMnFe)

Other Information
Search Engines:
  • Look for Jahnsite-(CaMnFe) on Google
  • Look for Jahnsite-(CaMnFe) images on Google
  • Look for Jahnsite-(CaMnFe) on Bing
  • Look for Jahnsite-(CaMnFe) images on Bing
  • Look for Jahnsite-(CaMnFe) on DuckDuckGo
  • Look for Jahnsite-(CaMnFe) images on DuckDuckGo
  • Look for Jahnsite-(CaMnFe) in the Rock H. Currier Digital Library
    • External Links:
  • Look for Jahnsite-(CaMnFe) on Webmineral
  • Look for Jahnsite-(CaMnFe) on Wikipedia
  • Look for Jahnsite-(CaMnFe) on Mineralien Atlas
  • Raman and XRD data at RRUFF project
  • References and PDF downloads at RRUFF project
  • American Mineralogist Crystal Structure Database
  • Handbook of Mineralogy page PDF
    • Mineral Dealers:
  • Buy rare minerals from Excalibur Minerals
  • High-end worldwide specimens & outstanding customer service
  • Blue Gems Australian & International
  • The Arkenstone - Fine Minerals
  • Buy from McDougall Minerals

    • References for Jahnsite-(CaMnFe)ⓘLa Viquita pegmatiteGalliski et al. (2020)
    Brazil
     
    Cassedanne et al. (1999)
    Europe
     
    Berbain et al. (2012)
    Finland
     
    Sandström et al. (2009)
    France
     
    Meisser et al. (2008)+1 other referenceBerbain et al. (2012)Berbain et al. (2012)
    Germany
     
    Christian Rewitzer collection (analysed by EPMA and Moessbauer spectroscopy)ex.coll. Kastning
    Italy
     
    VIGNOLA et al. (2007)Vignola et al. (2011)Vignola et al. (2011)Vignola et al. (2018)
    Morocco
     
    FRANSOLET (1987)Favreau (2012)
    Poland
     
    Włodek et al. (2015)
    Portugal
     
    Alves et al. (2012)Alves (n.d.)Alves (n.d.)e-rocks.com (n.d.)Alves (n.d.)Identified in Rebentão MineAlves (n.d.)
    Russia
     
    Rruff specimen R070733
    Spain
     
    Calvo (2015)Garate-Olave et al. (2020)Calvo Rebollar (2015)
    Switzerland
     
    Stalder et al. (1998)
    USA
     
    King et al. (1994)+1 other referenceKing et al. (1994)+1 other referenceKing et al. (1994)Moore et al. (1978)+1 other referenceNizamoff et al. (2004)Journal of Pegmatology vol. 1+2 other referencesThomas A. Loomis & Thomas J. Campbell (2002)
    Quick NavTopAbout Jahnsite-(CaMnFe)Unique IdentifiersIMA ClassificationClassificationMineral SymbolsPhysical PropertiesOptical DataChemistryCrystallographyX-Ray Powder DiffractionGeological EnvironmentType OccurrenceOther LanguagesRelationshipsCommon AssociatesStrunz-MindatFluorescenceOther InformationInternet LinksReferencesLocalitiesLocality List
     
    and/or 
    Mindat.org is an outreach project of theHudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization.
    Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2025, except where stated. Most political location boundaries are© OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 byJolyon Ralph.
    To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844.doi:10.2138/am-2024-9486.
    Privacy Policy -Terms & Conditions -Contact Us / DMCA issues -Report a bug/vulnerabilityCurrent server date and time: November 28, 2025 02:37:10 Page updated: August 13, 2025 09:05:31