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Kingsmountite

A valid IMA mineral species
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EditAdd SynonymEdit CIF structuresClear Cache
Ca3MnFeAl4(PO4)6(OH)4 · 12H2O
IMA proposal 19-B
Colour:
Colorless to white, may have a light tan to pale brown tinge
Lustre:
Sub-Vitreous
Hardness:
2½
Specific Gravity:
2.51
Crystal System:
Triclinic
Member of:
Montgomeryite Subgroup >Calcioferrite Group
Name:
Named in 1979 by Pete J. Dunn, Donald R. Peacor, John S. White, and Robert A. Ramik after the type locality - Kings Mountain, Cleveland County, North Carolina, USA.
Type Locality:
ⓘFoote Lithium Co. Mine, Kings Mountain, Cleveland County, North Carolina, USA
Isostructural with:
Montgomeryite
Fe(II) analogue ofMontgomeryite. Also ferrous iron analogue offanfaniite.


Unique Identifiers
IMA status notes:
Redefined by the IMA
IMA Formula:
Ca3MnFe2+Al4(PO4)6(OH)4 · 12H2O
First published:
1979
Approval history:
2019: Assigned with a triclinic structure with an ideal formula Ca3MnFeAl4(PO4)6(OH)4·12H2O
Type description reference:
Dunn, P.J., Peacor, D.R., White, J.S., Ramik, R.A. (1979) Kingsmountite, a new mineral isostructural with montgomeryite. The Canadian Mineralogist: 17(3): 579-582.

Classification of Kingsmountite

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.:
42.11.8.2

42 : HYDRATED PHOSPHATES, ETC.CONTAINING HYDROXYL OR HALOGEN
11 : (AB)3(XO4)2Zq·xH2O
Hey's CIM Ref.:
19.14.22

19 : Phosphates
14 : Phosphates of Fe and other metals

Mineral Symbols
Transparency:
Transparent, Translucent
Colour:
Colorless to white, may have a light tan to pale brown tinge
Streak:
White
Hardness:
2½ onMohs scale
Tenacity:
Brittle
Density:
2.51 g/cm3 (Measured)    2.58 g/cm3 (Calculated)

Optical Data of Kingsmountite
Surface Relief:
Moderate
Dispersion:
very weak
Optical Extinction:
Z^ length = 35°
Pleochroism:
Non-pleochroic

Chemistry of Kingsmountite

Crystallography of Kingsmountite
General Appearance of Type Material:
Radiating bundles of subparallel fibres in white spherules
Geological Setting of Type Material:
Phosphate mineralized fractures in granite pegmatite
Associated Minerals at Type Locality:
AlbiteBirnessiteMangangordoniteMitridatite
Reference:
Dunn, P.J., Peacor, D.R., White, J.S., Ramik, R.A. (1979) Kingsmountite, a new mineral isostructural with montgomeryite. The Canadian Mineralogist: 17(3): 579-582.

Synonyms of Kingsmountite

Other Language Names for Kingsmountite

Relationship of Kingsmountite to other Species
Other Members of Montgomeryite Subgroup:
FanfaniiteCa4MnAl4(PO4)6(OH)4 · 12H2OMon. 2/m :B2/b
MontgomeryiteCa4MgAl4(PO4)6(OH)4 · 12H2OMon. 2 :B2

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-(CaMnFe){Ca}{Mn2+}{Fe2+2}{Fe3+2}(PO4)4(OH)2 · 8H2OMon. 2/m :P2/b8.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.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 Kingsmountite

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    • References for KingsmountiteⓘLa Viquita pegmatiteGalliski et al. (2020)
    Australia
     
    Podgson RE
    France
     
    Karkanas et al. (2002)
    Germany
     
    Collection Elmar Lackner+1 other referenceweb.archive.org (2001)+1 other referenceWittern (2001)+1 other referenceWittern (2001)
    Mexico
     
    Forti (2006)
    Portugal
     
    Schnorrer-Köhler et al. (1991)Alves (n.d.)Vignola et al. (2018)
    Russia
     
    Zapiski Vserossiyskogo Mineralogicheskogo Obshchestva: 121 (2)+1 other referencePekov (1998)
    Spain
     
    Calvo Rebollar (2015)
    USA
     
    Castor et al. (2004)Czaja (2025)Dunn et al. (1979)+3 other referencesSmith et al. (2000)
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