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Freudenbergite

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About FreudenbergiteHide

Formula:
Na2(Ti,Fe)8O16
Crystal System:
Monoclinic
Name:
Named in honor of Wilhelm Freudenberg (17 May 1881 Weinheim, German Empire - 28 January 1960, Weinheim, Baden-Wurttemberg, West Germany), palaeontologist at the University of Tübingen and the University of Göttingen, and curator for mineralogy and geology at the National Collections of Natural History in Karlsruhe. He studied Katzenbuckel rocks.
A possible Fe2+ analogue is known: 'UM1983-07-O:FeNaTi'.


Classification of FreudenbergiteHide

Approved
First Published:
1961
4.CC.10

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
7.9.3.1

7 : MULTIPLE OXIDES
9 : AB8X16
7.9.19

7 : Oxides and Hydroxides
9 : Oxides of Ti

Optical Data of FreudenbergiteHide

Type:
Biaxial (+)
Dispersion:
r < v

Chemical Properties of FreudenbergiteHide

Formula:
Na2(Ti,Fe)8O16
IMA Formula:
Na(Ti4+3Fe3+)O8

Crystallography of FreudenbergiteHide

Crystal System:
Monoclinic
Cell Parameters:
a = 12.3 Å, b = 3.82 Å, c = 6.5 Å
β = 107.3°
Ratio:
a:b:c = 3.22 : 1 : 1.702
Unit Cell V:
291.59 ų (Calculated from Unit Cell)

Type Occurrence of FreudenbergiteHide

Reference:
Frenzel, G. (1961) Ein neues mineral: Freudenbergit (Na2Fe2Ti7O18). Neues Jahrbuch für Mineralogie, Monatshefte: 1961: 12-22.

Other Language Names for FreudenbergiteHide

Varieties of FreudenbergiteHide

Ferrous freudenbergiteFreudenbergite containing Fe.

Common AssociatesHide

Associated Minerals Based on Photo Data:
5 photos of Freudenbergite associated with RutileTiO2
1 photo of Freudenbergite associated with Plagioclase
1 photo of Freudenbergite associated with Albite-Anorthite Series

Related Minerals - Nickel-Strunz GroupingHide

4.CC.AllendeiteSc4Zr3O12Trig. 3 : R3
4.CC.BitikleiteCa3SbSn(AlO4)3Iso. m3m (4/m 3 2/m) : Ia3d
4.CC.Yttriaite-(Y)Y2O3Iso.
4.CC.Anzaite-(Ce)Ce3+ 4Fe2+Ti6O18 (OH)2Mon. 2/m : B2/m
4.CC.05ChrombismiteBi16CrO27Tet.
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)Ti2O6Iso. m3m (4/m 3 2/m)
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(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.
4.CC.40Davidite-(Y)(La,Ce,Na,Ca,Pb)(Y,Fe2+,◻)(Fe2+,Mn2+)2(Ti,Fe3+,Nb,Zr)18O38 (hypothetical)Trig.
4.CC.40LandauiteNaMnZn2(Ti,Fe)6Ti12O38Trig. 3 : R3
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.45HiboniteCaAl12O19Hex.
4.CC.45LindqvistitePb2Mn2+Fe16O27Hex.
4.CC.45Magnetoplumbite(Pb,Mn)(Fe,Mn)12O19Hex. 6/mmm (6/m 2/m 2/m) : P63/mmc
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)FeAl12O19Hex. 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 - 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.
7.9.11HiboniteCaAl12O19Hex.
7.9.12Yttrocrasite-(Y)(Y,Th,Ca,U)(Ti,Fe)2(O,OH)6Amor.
7.9.13PyrophaniteMn2+TiO3Trig. 3 : R3
7.9.14Jacobsite-QT(Mn2+)M(Fe3+2)O4Tet. 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. m3m (4/m 3 2/m) : Fd3m
7.9.18PseudorutileFe2Ti3O9Hex.
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)O4Iso. m3m (4/m 3 2/m) : Fd3m
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
7.9.31LandauiteNaMnZn2(Ti,Fe)6Ti12O38Trig. 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 FreudenbergiteHide

Reference List:
Sort by Year (asc) | by Year (desc) | by Author (A-Z) | by Author (Z-A)
Frenzel, G. (1961) Ein neues mineral: Freudenbergit (Na2Fe2Ti7O18). Neues Jahrbuch für Mineralogie, Monatshefte: 1961: 12-22.
Fleischer, M. (1961) New mineral names. American Mineralogist: 46: 765-770.
International Mineralogical Association (1967) Commission on new minerals and mineral names. Mineralogical Magazine: 36: 131-136.
McKie, D., Long, J.V.P. (1970) The unit-cell contents of frudenbergite. Zeitschrift für Kristallographie: 132: 157-160.
Ishiguro, T., Tanaka, K., Marumo, F., Ismail, M.G.M.U., Hirano, S., Somiya, S. (1978) Freudenbergite. Acta Crystallographica: B34: 255-256.
Stähle, 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. The Canadian Mineralogist: 40: 1609-1627.
Anashkin, S., Bovkun, A., Bindi, L., Garanin, V., Litvin, Y. (2013) Kudryavtsevaite, Na3MgFe3+Ti4O12, a new kimberlitic mineral. Mineralogical Magazine: 77: 327-334.

Internet Links for FreudenbergiteHide

Localities for FreudenbergiteHide

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.
Botswana
 
  • Central District
    • Letlhakane
      • Orapa
Anashkin, S., Bovkun, A., Bindi, L., Garanin, V., & Litvin, Y. (2013). Kudryavtsevaite, Na3MgFe3+ Ti4O12, a new kimberlitic mineral. Mineralogical Magazine, 77(3), 327-334.; Anashkin, S. M., Bovkun, A. V., Litvin, Y. A., & Garanin, V. K. (2013, August). The Na-Mg-Fe-Ti oxide mineral in association with picroilmenite and freudenbergite from kimberlite of the AK8 pipe, Botswana (natural and experimental data). In Doklady Earth Sciences (Vol. 451, No. 2, pp. 849-854). Springer US.
Germany
 
  • Baden-Württemberg
    • Karlsruhe
      • Rhein-Neckar-Kreis
        • Eberbach
Stähle, V., Koch, M. (2003): Primary and secondary pseudobrookite minerals in volcanic rocks from the Katzenbuckel Alkaline Complex, southwestern Germany. Schweizerische Mineralogische und Petrographische Mitteilungen, 83, 145-158.
Am. Min., 46, 765 (1961); 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.
Russia
 
  • Murmansk Oblast
    • Khibiny Massif
http://maurice.strahlen.org/kola/khibiny.htm; Barkov, A. Y., Fleet, M. E., Martin, R. F., & Men'Shikov, Y. P. (2006). Sr-Na-REE titanates of the crichtonite group from a fenitized megaxenolith, Khibina alkaline complex, Kola Peninsula, Russia: first occurrence and implications. European journal of mineralogy, 18(4), 493-502.
Mikhailova, J. A., Kalashnikov, A. O., Sokharev, V. A., Pakhomovsky, Y. A., Konopleva, N. G., Yakovenchuk, V. N., ... & Ivanyuk, G. Y. (2016). 3D mineralogical mapping of the Kovdor phoscorite–carbonatite complex (Russia). Mineralium Deposita, 51(1), 131-149.
  • Sakha Republic (Yakutia)
    • Mirninsky District
      • Daldyn
Am Min (97) 82 991-1000; Patchen, A. D., Taylor, L. A., & Pokhilenko, N. (1997). Ferrous freudenbergite in ilmenite megacrysts: A unique paragenesis from the Dalnaya kimberlite, Yakutia. American Mineralogist, 82(9), 991-1000.
South Africa
 
  • Free State
    • Lejweleputswa District
Patchen, A. D., Taylor, L. A., & Pokhilenko, N. (1997). Ferrous freudenbergite in ilmenite megacrysts: A unique paragenesis from the Dalnaya kimberlite, Yakutia. American Mineralogist, 82(9), 991-1000.
    • Thabo Mofutsanyane District
      • Clocolan
Kamenetsky, V. S., Belousova, E. A., Giuliani, A., Kamenetsky, M. B., Goemann, K., & Griffin, W. L. (2014). Chemical abrasion of zircon and ilmenite megacrysts in the Monastery kimberlite: Implications for the composition of kimberlite melts. Chemical Geology, 383, 76-85.
  • Northern Cape
    • Frances Baard
      • Sol Plaatje
        • Kimberley
          • KEM JV Mine (Kimberley Ekapa Mining Joint Venture mine; Kimberley Underground mine)
Giuliani, A., Kamenetsky, V. S., Phillips, D., Kendrick, M. A., Wyatt, B. A., & Goemann, K. (2012). Nature of alkali-carbonate fluids in the sub-continental lithospheric mantle. Geology, 40(11), 967-970.
 
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