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Strandite

A valid IMA mineral species - pending publication
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Formula:
Pb3Mn3+4Mn4+3O15
Crystal System:
Hexagonal
Name:
Named for Urban Strand (b. 1948), mineral collector, who collected the type specimen.
The Mn3+ analogue of zenzénite. Chemically somewhat similar to cesàrolite, coronadite, quenselite, and some Valid Unnamed Minerals like UM2000-38-O:MnPb.


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Unique IdentifiersHide

Mindat ID:
499368
Long-form identifier:
mindat:1:1:499368:7

Similar NamesHide

SeranditeA valid IMA mineral species - grandfatheredNaMn22+Si3O8(OH)

IMA Classification of StranditeHide

IMA status:
Approved, Pending publication
IMA Formula:
Pb2+3Mn3+4Mn4+3O15
Approval year:
2026
Approval history:
IMA No. 2025-080

Classification of StranditeHide

Strunz-mindat (2026):
4.CC.

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
C : Metal: Oxygen = 2: 3,3: 5, and similar
C : With large and medium-sized cations

Mineral SymbolsHide

As of 2021 there are now IMA–CNMNC approved mineral symbols (abbreviations) for each mineral species, useful for tables and diagrams.

SymbolSourceReference for Standard
StrnIMA–CNMNCWarr, L.N. (2021). IMA–CNMNC approved mineral symbols. Mineralogical Magazine, 85(3), 291-320. doi:10.1180/mgm.2021.43

Chemistry of StranditeHide

Mindat Formula:
Pb3Mn3+4Mn4+3O15
Element Weights:
Element% weight
Pb49.881 %
Mn30.860 %
O19.259 %

Calculated from ideal end-member formula.
Pb
Mn
O
Elements listed:
Mn, O, Pb - search for minerals with similar chemistry

Crystallography of StranditeHide

Crystal System:
Hexagonal
Class (H-M):
6/mmm(6/m2/m2/m) - Dihexagonal Dipyramidal
Space Group:
P63/mcm
Setting:
P63/mcm
Cell Parameters:
a = 10.0488(5) Å, c = 13.677(1) Å
Ratio:
a:c = 1 : 1.361
Unit Cell V:
1,196.05 ų (Calculated from Unit Cell)

X-Ray Powder DiffractionHide

Powder Diffraction Data:
d-spacingIntensity
6.8 Å(30)
5.03 Å(30)
3.422 Å(60)
3.195 Å(100)
2.902 Å(25)
2.828 Å(65)
2.669 Å(55)
2.355 Å(30)
Locality:
LĂ„ngban Mine, LĂ„ngban Ore District, Filipstad, VĂ€rmland County, Sweden
Reference:
Karlsson, A., Holtstam, D., Bindi, L. and Buczko, D. (2026) Strandite, IMA 2025-080. CNMNC Newsletter 89, Mineralogical Magazine, 90, https://doi.org/10.1180/mgm.2026.10199

Type Occurrence of StranditeHide

Type Locality:
ⓘ LĂ„ngban Mine, LĂ„ngban Ore District, Filipstad, VĂ€rmland County, Sweden
Place of Conservation of Type Material:
the collections of the Department of Geosciences, Swedish
Museum of Natural History, Box 50007, SE-10405 Stockholm, Sweden, collection number GEO-NRM 20190015

Synonyms of StranditeHide

Other Language Names for StranditeHide

Dutch:Strandiet

Related Minerals - Strunz-mindat GroupingHide

4.CC.BernwooditeCa5TiAl2Si2O14Mon. 2/m : B2/b
4.CC.XuiteCa3Fe3+2[(AlO3(OH)]3Iso. m3m(4/m32/m)
4.CC.Yttriaite-(Y)Y2O3Iso. m3(2/m3)
4.CC.AllendeiteSc4Zr3O12Trig. 3 : R3
4.CC.ChlorkyuygeniteCa12Al14O32[(H2O)4Cl2]Iso. 43m : I43d
4.CC.OboniobiteMg4Nb2O9Trig. 3m(32/m) : P3c1
4.CC.BotuobinskiteSrFe2+Mg2(Cr3+6Ti4+12)[O36(OH)2]Trig. 3 : R3
4.CC.MirnyiteSrZr4+Mg2(Cr3+6Ti4+12)O38Trig. 3 : R3
4.CC.Haitaite-(La)LaU4+Fe3+2(Ti13Fe2+4Fe3+)O38Trig. 3 : R3
4.CC.ShagamiteKFe11O17Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.BitikleiteCa3(Sb5+Sn4+)[AlO4]3Iso. m3m(4/m32/m) : Ia3d
4.CC.Anzaite-(Ce)Ce3+ 4Fe2+Ti6O18 (OH)2Mon. 2/m : B2/m
4.CC.Heamanite-(Ce)(K0.5Ce0.5)TiO3Iso. m3m(4/m32/m)
4.CC.Priscillagrewite-(Y)(Ca2Y)Zr2(AlO4)3Iso.
4.CC.SaranovskiteSrCaFe2+2(Cr4Ti2)Ti12O38Trig. 3 : R3
4.CC.05ChrombismiteBi3+16Cr6+O27Iso. m3m(4/m32/m)
4.CC.10FreudenbergiteNa2(Ti,Fe)8O16Mon.
4.CC.10FluormayeniteCa12Al14O32F2Iso. 43m : I43d
4.CC.10FluorkyuygeniteCa12Al14O32[(H2O)4F2]Iso. 43m : I43d
4.CC.15GrossiteCaAl4O7Mon. 2/m : B2/b
4.CC.17GoldschmidtiteKNbO3Iso. m3m(4/m32/m) : Pm3m
4.CC.20'Unnamed (HBU UK-4)'NaFe2+Zn2(Ti,Fe3+,Nb)6Ti12O38Trig. 3 : R3
4.CC.20ChlormayeniteCa12Al14O32[◻4Cl2]Iso. 43m : I43d
4.CC.20PaseroitePbMn2+(Mn2+,Fe3+)2(V5+,Ti,◻)18O38 Trig. 3 : R3
4.CC.20Mianningite(◻,Pb,Ce,Na)(U4+,Mn,U6+)Fe3+2 (Ti,Fe3+)18O38Trig. 3 : R3
4.CC.20'UM1987-03-O:FePbTiU'~(U,Pb)(Ti,Fe3+,Fe2+,Mn)21O38Trig. 3 : R3
4.CC.22GoreriteCaAlFe3+11O19Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.22KahlenbergiteKAl11O17Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.25HopmanniteBa2(Ti5Fe)O13Mon. 2/m : B2/m
4.CC.25NixoniteNa2Ti6O13Mon. 2/m : B2/m
4.CC.25YafsoaniteCa3Te6+2(ZnO4)3Iso. m3m(4/m32/m) : Ia3d
4.CC.30LatrappiteCa2NbFe3+O6Orth. mmm(2/m2/m2/m) : Pnma
4.CC.30NatroniobiteNaNbO3Mon.
4.CC.30PerovskiteCaTiO3Orth. mmm(2/m2/m2/m) : Pnma
4.CC.30LueshiteNaNbO3Orth. mmm(2/m2/m2/m)
4.CC.30BariolakargiiteBaZrO3Iso. m3m(4/m32/m) : Pm3m
4.CC.30BarioperovskiteBaTiO3Orth. mm2 : Amm2
4.CC.30MegawiteCaSnO3Orth. mmm(2/m2/m2/m) : Pban
4.CC.30LakargiiteCa(Zr,Sn,Ti)O3Orth. mmm(2/m2/m2/m) : Pnma
4.CC.32UsturiteCa3(Sb5+Zr)[Fe3+O4]3Iso. m3m(4/m32/m) : Ia3d
4.CC.32ElbrusiteCa3(U6+0.5Zr1.5)[Fe3+O4]3Iso. m3m(4/m32/m) : Ia3d
4.CC.32MonteneveiteCa3Sb5+2(Fe3+2Fe2+)O12Iso. m3m(4/m32/m) : Ia3d
4.CC.32DzhuluiteCa3(Sb5+Sn4+)[Fe3+O4]3Iso. m3m(4/m32/m) : Ia3d
4.CC.35TausoniteSrTiO3Iso. 43m
4.CC.35Loparite(Na,REE)2Ti2O6Iso. m3m(4/m32/m)
4.CC.35Panguite(Ti,Al,Sc,Mg,Zr,Ca)1.8O3Orth. mmm(2/m2/m2/m) : Pbca
4.CC.35Isolueshite(Na,La)NbO3Iso. m3m(4/m32/m) : Pm3m
4.CC.35MacedonitePbTiO3Tet. 4/mmm(4/m2/m2/m) : P4/nmm
4.CC.37PauloabibiteNaNbO3Trig. 3 : R3
4.CC.40LandauiteNaMnZn2(Ti,Fe)6Ti12O38Trig. 3 : R3
4.CC.40Mathiasite(Mg,Cr,Fe,Ca,K)2(Ti,Zr,Cr,Fe)5O12Trig. 3 : R3
4.CC.40SenaitePb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38Trig. 3 : R3
4.CC.40Gramaccioliite-(Y)(Pb,Sr)(Y,Mn)Fe3+2(Ti,Fe3+)18O38Trig. 3 : R3
4.CC.40Lindsleyite(Ba,Sr)(Zr,Ca)(Fe,Mg)2(Ti,Cr,Fe)18O38Trig.
4.CC.40CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38Trig. 3 : R3
4.CC.40Loveringite(Ca,Ce,La)(Zr,Fe)(Mg,Fe)2(Ti,Fe,Cr,Al)18O38Trig. 3 : R3
4.CC.40Cleusonite(Pb,Sr)(U4+,U6+)(Fe2+,Zn)2(Ti,Fe2+,Fe3+)18(O,OH)38Trig. 3 : R3
4.CC.40Davidite-(Ce)Ce(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38Trig. 3 : R3
4.CC.40Davidite-(La)La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38Trig. 3 : R3
4.CC.40'Davidite-(Y)'(La,Ce,Na,Ca,Pb)(Y,Fe2+,◻)(Fe2+,Mn2+)2(Ti,Fe3+,Nb,Zr)18O38 (hypothetical)Trig.
4.CC.40'Uhligite'Ca3(Ti,Al,Zr)9O20 ?Iso.
4.CC.40Dessauite-(Y)(Sr,Pb)(Y,U)(Ti,Fe3+)20O38Trig. 3 : R3
4.CC.45DiaoyudaoiteNaAl11O17Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.45YimengiteK(Cr,Ti,Fe,Mg)12O19Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.45NeĆŸilovitePbZn2Mn4+2Fe3+8O19Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.45HawthorneiteBaMgTi3Cr4Fe2+2Fe3+2O19Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.45Mizraite-(Ce)Ce(Al11Mg)O19Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.45HaggertyiteBaFe2+4Fe3+2Ti5MgO19Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.45LindqvistitePb2Mn2+Fe16O27Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.45HiboniteCaAl12O19Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.45Kangite(Sc,Ti,Al,Zr,Mg,Ca,◻)2O3 Iso. m3(2/m3)
4.CC.45ChihuahuaiteFeAl12O19Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.45BarioferriteBaFe3+12O19Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.45PlumboferritePb[Fe3+10.67Mn2+0.33Pb]O18.33Trig. 32 : P312
4.CC.45BatiferriteBaTi2Fe3+8Fe2+2O19Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.45MagnetoplumbitePbFe3+12O19Hex. 6/mmm(6/m2/m2/m) : P63/mmc
4.CC.50JeppeiteK2Ti6O13Mon. 2/m : B2/m
4.CC.55ZenzénitePb3Fe3+4Mn4+3O15Hex. 6/mmm(6/m2/m2/m) : P63/mcm
4.CC.60'Mengxianminite (of Huang et al.)'(Ca,Na)3(Fe,Mn)2Mg2(Sn,Zn)5Al8O29

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.

Internet Links for StranditeHide

References for StranditeHide

Localities for StranditeHide

Showing 1 localities.

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.
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Locality ListHide

- This locality has map coordinates listed. - This locality has estimated coordinates. ⓘ - Click for references and 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 (e.g. from pseudomorphs).

All localities listed without proper references should be considered as questionable.
Sweden (TL)
 
  • VĂ€rmland County
    • Filipstad
      • LĂ„ngban Ore District
Karlsson et al. (2026)
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