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Långbanite

A valid IMA mineral species - grandfathered
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Mn2+4Mn3+9Sb5+O16(SiO4)2
Minor Ca may replace Mn2+, minor Fe3+ may replace Mn3+.
Colour:
black
Lustre:
Sub-Metallic
Hardness:
6½
Specific Gravity:
4.9
Crystal System:
Trigonal
Name:
Named in 1887 by Gustav Flink after the type locality: Långban, Sweden.
Type Locality:
ⓘLångban Mine, Långban Ore District, Filipstad, Värmland County, Sweden
This page provides mineralogical data about Långbanite.


Unique Identifiers

Classification of Långbanite
Dana 8th ed.:
44.3.4.1

44 : ANTIMONATES
3 : Miscellaneous
Hey's CIM Ref.:
17.7.19

17 : Silicates Containing other Anions
7 : Silicates with vanadate, arsenate or antimonate

Mineral Symbols
Transparency:
Opaque
Colour:
Black
Streak:
Brown
Hardness:
6½ onMohs scale
Hardness Data:
Measured
Tenacity:
Brittle
Cleavage:
Distinct/Good
{001} good.
Fracture:
Conchoidal
Density:
4.9 g/cm3 (Measured)    

Optical Data of Långbanite
Surface Relief:
Very High
Comments:
Refractive indices recorded for Li light.

Chemistry of Långbanite

Crystallography of Långbanite
General Appearance of Type Material:
Short to long black prisms with vertical striations.
Geological Setting of Type Material:
In crystalline limestones and manganese-rich skarns in metamorphosed manganese deposits.

Synonyms of Långbanite

Other Language Names for Långbanite

Common AssociatesTrig. 3m :R3c9.AG.Ivanyukite-Na-TNa2Ti4(SiO4)3(OH)O3 · 7H2OTrig. 3m :R3m9.AG.Ivanyukite-Na-CNa2Ti4(SiO4)3(OH)2O2 · 6H2OIso.43m :P43m9.AG.EdgrewiteCa9(SiO4)4F2Mon. 2/m :P21/b9.AG.02GatedaliteZrMn2+2Mn3+4SiO12Tet. 4/mmm(4/m2/m2/m) :I41/acd9.AG.2SkogbyiteZr(Mg2Mn3+4)SiO12Tet. 4/mmm(4/m2/m2/m) :I41/acd9.AG.05AbswurmbachiteCuMn3+6(SiO4)O8Tet. 4/mmm(4/m2/m2/m) :I41/acd9.AG.05NeltneriteCaMn3+6(SiO4)O8Tet. 4/mmm(4/m2/m2/m) :I41/acd9.AG.05BrauniteMn2+Mn3+6(SiO4)O8Tet. 4/mmm(4/m2/m2/m) :I41/acd9.AG.05Braunite-IICa(Mn3+,Fe)14(SiO4)O20Tet. 4/mmm(4/m2/m2/m) :I41/acd9.AG.12Taipingite-(CeCa)(Ce7Ca2)◻Mg(SiO4)3[SiO3(OH)]4F3Trig. 3m :R3c9.AG.15ŻabińskiiteCa[Al0.5(Ta,Nb)0.5)](SiO4)OTric.19.AG.15TitaniteCaTi(SiO4)OMon. 2/m :P21/b9.AG.15VanadomalayaiteCaV4+(SiO4)OMon. 2/m :B2/b9.AG.15Natrotitanite(Na0.5Y0.5)Ti(SiO4)OMon. 2/m :B2/b9.AG.15MalayaiteCaSn(SiO4)OMon. 2/m9.AG.20Ferricerite-(LaCa)(La6Ca3)◻Fe3+(SiO4)3(SiO3OH)4(OH)3Trig. 3m :R3c9.AG.20Aluminocerite-(CeCa)(Ce6Ca3)◻Al(SiO4)3[SiO3(OH)]4(OH)3Trig. 3m :R3c9.AG.20Cerite-(CeCa)(Ce7Ca2)◻Mg(SiO4)3(SiO3OH)4(OH)3Trig. 3m :R3c9.AG.20Nipeiite-(Ce)Ce9Fe3+(SiO4)6[SiO3(OH)](OH)3Trig. 3m :R3c9.AG.25Yftisite-(Y)(Y,Dy,Er)4(Ti,Sn)(SiO4)2O(F,OH)69.AG.25Mieite-(Y)Y4Ti(SiO4)2O[F,(OH)]6Orth.mmm(2/m2/m2/m) :Cmcm9.AG.25Trimounsite-(Y)Y2Ti2(SiO4)O5Mon. 2/m :P21/b9.AG.30SitinakiteKNa2Ti4(SiO4)2O5(OH) · 4H2OTet. 4/mmm(4/m2/m2/m) :P42/mcm9.AG.35KittatinnyiteCa2Mn2Mn(SiO4)2(OH)4 · 9H2OHex.9.AG.40bParanatisiteNa2Ti(SiO4)OOrth.mmm(2/m2/m2/m) :Pmma9.AG.40aNatisiteNa2Ti(SiO4)OTet. 4/mmm(4/m2/m2/m)9.AG.45Törnebohmite-(Ce)Ce2Al(SiO4)2(OH)Mon. 2/m :P21/b9.AG.45Törnebohmite-(La)La2Al(SiO4)2(OH)9.AG.50Ivanyukite-NaNa2Ti4(SiO4)3(OH)2O2 · 6H2OTrig. 3m :R3m9.AG.50Ivanyukite-KK2Ti4(SiO4)3(OH)2O2 · 9H2OIso.43m :P43m9.AG.50Ivanyukite-CuCuTi4(SiO4)3(OH)2O2 · 7H2OIso.43m :P43m9.AG.50Kuliokite-(Y)Y4Al(SiO4)2(OH)2F5Tric. 1 :P19.AG.50HydroxyledgrewiteCa9(SiO4)4(OH)2Mon. 2/m :P21/b9.AG.52Ulfanderssonite-(Ce)(Ce15Ca)Σ16Mg2(SiO4)10(SiO3OH)(OH,F)5Cl3Mon.m :Bm9.AG.55ChantaliteCaAl2(SiO4)(OH)4Tet. 4/m :I41/a9.AG.60VuagnatiteCaAl(SiO4)(OH)Orth. 222 :P2121219.AG.60MozartiteCaMn3+(SiO4)(OH)Orth. 222 :P2121219.AG.65HatruriteCa3(SiO4)OTrig.9.AG.70JasmunditeCa11(SiO4)4O2STet.42m :I4m29.AG.75AfwilliteCa3[SiO4][SiO2(OH)2] · 2H2OMon.m :Bb9.AG.80BultfonteiniteCa2(HSiO4)F · H2OTric.1 :P19.AG.85ZoltaiiteBaV4+2V3+12(SiO4)2O19Trig.3 :P39.AG.90Tranquillityite(Fe2+,Ca)8(Zr,Y)2Ti3(SiO4)3O12Hex.

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    • References for LångbaniteⓘWunwand (Wunspitze)Kolitsch et al. (2017)
    Japan
     
    Matsubara et al. (1986)+1 other reference
    Norway
     
    Van der Wel (1971)+2 other references
    Sweden
     
    Moore (1972)Nysten et al. (1994)Collection of Bergsskolan (8115)+1 other referenceFlink (1888)+2 other referencesNysten (2014)Adolfsson (1979)
    Switzerland
     
    Roth et al. (2013)
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