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Landauite

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About LandauiteHide

Lev Davidovich Landau
Formula:
NaMnZn2(Ti,Fe)6Ti12O38
Colour:
Black
Lustre:
Sub-Metallic
Hardness:
Specific Gravity:
4.42
Crystal System:
Trigonal
Name:
For Lev Davidovich Landau (born January 22, 1908 – died April 1, 1968) was a prominent Soviet physicist who made fundamental contributions to many areas of theoretical physics. He won the 1962 Nobel Prize in physics. There are many things named in his honor including physical effects, equations, a minor planet, and a lunar crater.

Classification of LandauiteHide

Approved
4.CC.40

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
8.5.1.1

8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
5 : AB21O38
7.9.31

7 : Oxides and Hydroxides
9 : Oxides of Ti

Physical Properties of LandauiteHide

Sub-Metallic
Transparency:
Opaque
Colour:
Black
Streak:
Gray
Hardness:
7½ on Mohs scale
Hardness Data:
Measured
Cleavage:
None Observed
Fracture:
Conchoidal
Density:
4.42 g/cm3 (Measured)    4.46 g/cm3 (Calculated)

Optical Data of LandauiteHide

Type:
Uniaxial (-)
RI values:
nω = 2.388 nε = 2.373
Max Birefringence:
δ = 0.015
Image shows birefringence interference colour range (at 30µm thickness)
and does not take into account mineral colouration.
Surface Relief:
Very High
Pleochroism:
Strong
Comments:
X=Z= bottle green
Y= green

Chemical Properties of LandauiteHide

Formula:
NaMnZn2(Ti,Fe)6Ti12O38
IMA Formula:
(Na,Pb)(Mn2+,Y)(Zn,Fe)2(Ti,Fe3+,Nb)18(O,OH,F)O38

Crystallography of LandauiteHide

Crystal System:
Trigonal
Class (H-M):
3 - Rhombohedral
Space Group:
R3
Cell Parameters:
a = 10.366(7) Å, c = 20.77(1) Å
Ratio:
a:c = 1 : 2.004
Unit Cell V:
1,932.81 ų (Calculated from Unit Cell)
Z:
3
Morphology:
Prismatic crystals, irregular grains to 1 mm and fine-grained aggregates.
Twinning:
Commonly as complex cyclic twins.

Type Occurrence of LandauiteHide

Place of Conservation of Type Material:
A.E. Fersman Mineralogical Museum, Academy of Sciences, Moscow, Russia, 67187, vis5882, vis5883.
National Museum of Natural History, Washington, D.C., USA, 144009.
Geological Setting of Type Material:
Albite veinlets along the contact of quartz syenite and syenite pegmatite in an alkaline massif.
Associated Minerals at Type Locality:

Synonyms of LandauiteHide

Other Language Names for LandauiteHide

German:Landauit
Spanish:Landauita

Relationship of Landauite to other SpeciesHide

Other Members of this group:
AlmeidaitePbZn2(Mn,Y)(Ti,Fe3+)18O37(OH,O)Trig. 3 : R3
Cleusonite(Pb,Sr)(U4+,U6+)(Fe2+,Zn)2(Ti,Fe2+,Fe3+)18(O,OH)38Trig. 3 : R3
CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38Trig. 3 : R3
Davidite-(Ce)(Ce,La)(Y,U,Fe)(Ti,Fe)20(O,OH)38Trig. 3 : R3
Davidite-(La)(La,Ce)(Y,U,Fe)(Ti,Fe)20(O,OH)38Trig.
Davidite-(Y)(La,Ce,Na,Ca,Pb)(Y,Fe2+,◻)(Fe2+,Mn2+)2(Ti,Fe3+,Nb,Zr)18O38 (hypothetical)Trig.
Dessauite-(Y)(Sr,Pb)(Y,U)(Ti,Fe3+)20O38Trig. 3 : R3
Gramaccioliite-(Y)(Pb,Sr)(Y,Mn)Fe3+2(Ti,Fe3+)18O38Trig. 3
Lindsleyite(Ba,Sr)(Zr,Ca)(Fe,Mg)2(Ti,Cr,Fe)18O38Trig.
Loveringite(Ca,Ce,La)(Zr,Fe)(Mg,Fe)2(Ti,Fe,Cr,Al)18O38Trig.
Mapiquiroite(Sr,Pb)(U,Y)Fe2(Ti,Fe3+,Cr3+)18O38Trig. 3 : R3
Mathiasite(K, Ba, Sr)(Zr, Fe)(Mg,Fe)2 (Ti,Cr,Fe)18O38Trig.
Mianningite(◻,Pb,Ce,Na)(U4+,Mn,U6+)Fe3+2 (Ti,Fe3+)18O38Trig. 3 : R3
PaseroitePbMn2+(Mn2+,Fe3+)2(V5+,Ti,◻)18O38 Trig. 3 : R3
SenaitePb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38Trig.
UM1987-03-O:FePbTiU~(U,Pb)(Ti,Fe3+,Fe2+,Mn)21O38Trig. 3 : R3
Unnamed (HBU UK-4)NaFe2+Zn2(Ti,Fe3+,Nb)6Ti12O38Trig. 3 : R3

Common AssociatesHide

Associated Minerals Based on Photo Data:
Albite3 photos of Landauite associated with Albite on mindat.org.

Related Minerals - Nickel-Strunz GroupingHide

4.CC.AllendeiteSc4Zr3O12Trig. 3 : R3
4.CC.Yttriaite-(Y)Y2O3Iso.
4.CC.05ChrombismiteBi16CrO27Tet.
4.CC.10FreudenbergiteNa2(Ti,Fe)8O16Mon.
4.CC.15GrossiteCaAl4O7Mon. 2/m : B2/b
4.CC.20ChlormayeniteCa12Al14O32[◻4Cl2]Iso. 4 3m : I4 3d
4.CC.25YafsoaniteCa3Zn3(TeO6)2Iso. m3 (2/m 3)
4.CC.30LatrappiteCa2NbFe3+O6Orth. mmm (2/m 2/m 2/m) : Pnma
4.CC.30LueshiteNaNbO3Orth. mmm (2/m 2/m 2/m)
4.CC.30NatroniobiteNaNbO3Mon.
4.CC.30PerovskiteCaTiO3Orth. mmm (2/m 2/m 2/m) : Pnma
4.CC.30BarioperovskiteBaTiO3Orth. mm2 : Amm2
4.CC.30LakargiiteCa(Zr,Sn,Ti)O3Orth. mmm (2/m 2/m 2/m) : Pnma
4.CC.30MegawiteCaSnO3Orth. mmm (2/m 2/m 2/m) : Pban
4.CC.35Loparite-(Ce)(Na,REE)Ti2O6
4.CC.35MacedonitePbTiO3Tet. 4/mmm (4/m 2/m 2/m) : P4/nmm
4.CC.35TausoniteSrTiO3Iso. 4 3m
4.CC.35Isolueshite(Na,La)NbO3Iso. m3m (4/m 3 2/m) : Pm3m
4.CC.40CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38Trig. 3 : R3
4.CC.40Davidite-(Ce)(Ce,La)(Y,U,Fe)(Ti,Fe)20(O,OH)38Trig. 3 : R3
4.CC.40Davidite-(La)(La,Ce)(Y,U,Fe)(Ti,Fe)20(O,OH)38Trig.
4.CC.40Davidite-(Y)(La,Ce,Na,Ca,Pb)(Y,Fe2+,◻)(Fe2+,Mn2+)2(Ti,Fe3+,Nb,Zr)18O38 (hypothetical)Trig.
4.CC.40Lindsleyite(Ba,Sr)(Zr,Ca)(Fe,Mg)2(Ti,Cr,Fe)18O38Trig.
4.CC.40Loveringite(Ca,Ce,La)(Zr,Fe)(Mg,Fe)2(Ti,Fe,Cr,Al)18O38Trig.
4.CC.40Mathiasite(K, Ba, Sr)(Zr, Fe)(Mg,Fe)2 (Ti,Cr,Fe)18O38Trig.
4.CC.40SenaitePb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38Trig.
4.CC.40Dessauite-(Y)(Sr,Pb)(Y,U)(Ti,Fe3+)20O38Trig. 3 : R3
4.CC.40Cleusonite(Pb,Sr)(U4+,U6+)(Fe2+,Zn)2(Ti,Fe2+,Fe3+)18(O,OH)38Trig. 3 : R3
4.CC.40Gramaccioliite-(Y)(Pb,Sr)(Y,Mn)Fe3+2(Ti,Fe3+)18O38Trig. 3
4.CC.45DiaoyudaoiteNaAl11O17Hex.
4.CC.45HawthorneiteBaMgTi3Cr4Fe2+2Fe3+2O19Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
4.CC.45Hibonite(Ca,Ce)(Al,Ti,Mg)12O19Hex.
4.CC.45LindqvistitePb2Mn2+Fe16O27Hex.
4.CC.45Magnetoplumbite(Pb,Mn)(Fe,Mn)12O19Hex.
4.CC.45PlumboferritePb2(Fe3+,Mn2+,Mg)11O19Trig. 3 2 : P3 1 2
4.CC.45YimengiteK(Cr,Ti,Fe,Mg)12O19Hex.
4.CC.45HaggertyiteBaFe2+4Fe3+2Ti5MgO19Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
4.CC.45NežilovitePbZn2Mn4+2Fe3+8O19Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
4.CC.45BatiferriteBaTi2Fe3+8Fe2+2O19Hex.
4.CC.45Hibonite-(Fe)(Fe,Mg)Al12O19Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
4.CC.45BarioferriteBaFe3+12O19Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
4.CC.50Jeppeite(K,Ba)2(Ti,Fe)6O13Mon.
4.CC.55ZenzénitePb3Fe4Mn3O15Hex.
4.CC.60Mengxianminite (of Huang et al.)(Ca,Na)3(Fe,Mn)2Mg2(Sn,Zn)5Al8O29

Related Minerals - Dana Grouping (8th Ed.)Hide

8.5.1.2Loveringite(Ca,Ce,La)(Zr,Fe)(Mg,Fe)2(Ti,Fe,Cr,Al)18O38Trig.
8.5.1.3CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38Trig. 3 : R3
8.5.1.4SenaitePb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38Trig.
8.5.1.5Davidite-(La)(La,Ce)(Y,U,Fe)(Ti,Fe)20(O,OH)38Trig.
8.5.1.6Davidite-(Ce)(Ce,La)(Y,U,Fe)(Ti,Fe)20(O,OH)38Trig. 3 : R3
8.5.1.7Mathiasite(K, Ba, Sr)(Zr, Fe)(Mg,Fe)2 (Ti,Cr,Fe)18O38Trig.
8.5.1.8Lindsleyite(Ba,Sr)(Zr,Ca)(Fe,Mg)2(Ti,Cr,Fe)18O38Trig.

Related Minerals - Hey's Chemical Index of Minerals GroupingHide

7.9.1HongquiiteTiO
7.9.2RutileTiO2Tet. 4/mmm (4/m 2/m 2/m) : P42/mnm
7.9.3AnataseTiO2Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
7.9.4BrookiteTiO2Orth. mmm (2/m 2/m 2/m)
7.9.5GeikieliteMgTiO3Trig. 3 : R3
7.9.6PerovskiteCaTiO3Orth. mmm (2/m 2/m 2/m) : Pnma
7.9.7KassiteCaTi2O4(OH)2Orth.
7.9.8TausoniteSrTiO3Iso. 4 3m
7.9.9CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38Trig. 3 : R3
7.9.10Lucasite-(Ce)CeTi2(O,OH)6Mon.
7.9.11Hibonite(Ca,Ce)(Al,Ti,Mg)12O19Hex.
7.9.12Yttrocrasite-(Y)(Y,Th,Ca,U)(Ti,Fe)2(O,OH)6Amor.
7.9.13PyrophaniteMn2+TiO3Trig. 3 : R3
7.9.14IwakiiteMn2+Fe3+2O4Tet. 4/mmm (4/m 2/m 2/m) : I41/amd
7.9.15IlmeniteFe2+TiO3Trig. 3 : R3
7.9.16PseudobrookiteFe2TiO5Orth. mmm (2/m 2/m 2/m)
7.9.17UlvöspinelTiFe2O4Iso.
7.9.18PseudorutileFe2Ti3O9Hex.
7.9.19FreudenbergiteNa2(Ti,Fe)8O16Mon.
7.9.20KennedyiteFe2TiO5
7.9.21Armalcolite(Mg,Fe2+)Ti2O5Orth. mmm (2/m 2/m 2/m)
7.9.22Högbomite(Mg,Fe)2(Al,Ti)5O10Hex.
7.9.23Qandilite(Mg,Fe3+)2(Ti,Fe3+,Al)O4
7.9.24CafetiteCaTi2O5 · H2OMon. 2/m : P21/b
7.9.25Loveringite(Ca,Ce,La)(Zr,Fe)(Mg,Fe)2(Ti,Fe,Cr,Al)18O38Trig.
7.9.26Lindsleyite(Ba,Sr)(Zr,Ca)(Fe,Mg)2(Ti,Cr,Fe)18O38Trig.
7.9.27PrideriteK(Ti4+7Fe3+)O16Tet.
7.9.28Jeppeite(K,Ba)2(Ti,Fe)6O13Mon.
7.9.29AnkangiteBa(Ti,V3+,Cr)8O16Tet. 4/m : I4/m
7.9.30Ecandrewsite(Zn,Fe2+,Mn2+)TiO3Trig. 3 : R3

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 LandauiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Portnov, A.M., Nikolayeva, L.Y., Stolyarova, T.I. (1966) A new titanium mineral, landauite. Doklady Akademii Nauk SSSR: 166: 1420-1421. (in Russian)
Fleischer, M. (1966) New mineral names. American Mineralogist: 51: 1546-1553
Fleischer, M. (1969) New mineral names. American Mineralogist: 54: 326-330.
Il’menev, E.S., Portnov, A.M., Bochkov, S.V., Vostrova, S.I. (1972) New type of baumhauer twins in landauite crystals. Doklady Akademii Nauk SSSR: 202: 1321–1323. (in Russian)
Nikolaeva, L.E., Belov, N.V. (1970) Crystal structure of landauite. Soviet Physics - Doklady: 15: 91-93.
Grey, I.E., Gatehouse, B.M. (1978) The crystal structure of landauite, Na[MnZn2(Ti,Fe)6Ti12]O38. The Canadian Mineralogist: 16: 63-68.
Wülser, P.-A., Brugger, J., Meisser, N. (2004) The crichtonite group of minerals: a review of the classification. Bulletin de liaison de la Société Francaise de Minéralogie et Cristallographie: 16: 76-77.

Internet Links for LandauiteHide

Localities for LandauiteHide

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.
Canada
 
  • Québec
    • Montérégie
      • La Vallée-du-Richelieu RCM
        • Mont Saint-Hilaire
Can. Museum of Nature unpublished data XRD & WDS
Germany
 
  • Baden-Württemberg
    • Odenwald
      • Eberbach
        • Katzenbuckel
Stahle, V., Koch, M., McCammon, C. A., Mann, U. & Markl, G. (2002): Occurrence of low-Ti and high-Ti freudenbergite in alkali syenite dikes from the Katzenbuckel volcano, southwestern Germany. Canadian Mineralogist 40, 1609-1627.
Mongolia
 
  • Gobi Desert
N.V. Vladykin data
Republic of Macedonia
 
  • Veles
    • Nežilovo
      • Jakupica Mts
Gunnar Färber
Russia (TL)
 
  • Eastern-Siberian Region
    • Prebaikalia (Pribaikal'e)
      • Buriatia (Buryatia)
        • Mama River Basin
          • Maigunda River
[MinRec 32:42]; Pekov, I. (1998) Minerals First discovered on the territory of the former Soviet Union 369p. Ocean Pictures, Moscow; Vladykin, N. V., & Sotnikova, I. A. (2017). Petrology, geochemistry and source characteristics of the Burpala alkaline massif, North Baikal. Geoscience Frontiers, 8(4), 711-719.
Mineral and/or Locality  
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