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Mathiasite

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Professor Frances Celia Mathias
Formula:
(Mg,Cr,Fe,Ca,K)2(Ti,Zr,Cr,Fe)5O12
System:
Trigonal
Hardness:
A member of the Crichtonite Group.


Classification of Mathiasite

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
8.5.1.7

8 : MULTIPLE OXIDES CONTAINING NIOBIUM,TANTALUM OR TITANIUM
5 : AB21O38
7.14.6

7 : Oxides and Hydroxides
14 : Oxides of Cr

Physical Properties of Mathiasite

Hardness (Mohs):

Chemical Properties of Mathiasite

IMA Formula:
(Mg,Cr,Fe,Ca,K)2(Ti,Zr,Cr,Fe)5O12
Elements listed in formula:

Crystallography of Mathiasite

Crystal System:
Trigonal
Cell Parameters:
a = 10.35Å, c = 20.58Å
Ratio:
a:c = 1 : 1.988
Unit Cell Volume:
V 1,909.22 ų (Calculated from Unit Cell)

Type Occurrence of Mathiasite

Relationship of Mathiasite to other Species

Other Members of Group:
AlmeidaitePbZn2(Mn,Y)(Ti,Fe3+)18O37(OH,O)
Cleusonite(Pb,Sr)(U4+,U6+)(Fe2+,Zn)2(Ti,Fe2+,Fe3+)18(O,OH)38
CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38
Davidite-(Ce)(Ce,La)(Y,U,Fe)(Ti,Fe)20(O,OH)38
Davidite-(La)(La,Ce)(Y,U,Fe)(Ti,Fe)20(O,OH)38
Davidite-(Y)(La,Ce,Na,Ca,Pb)(Y,Fe2+,◻)(Fe2+,Mn2+)2(Ti,Fe3+,Nb,Zr)18O38 (hypothetical)
Dessauite-(Y)(Sr,Pb)(Y,U)(Ti,Fe3+)20O38
Gramaccioliite-(Y)(Pb,Sr)(Y,Mn)Fe23+(Ti,Fe3+)18O38
LandauiteNaMnZn2(Ti,Fe)6Ti12O38
Lindsleyite(Ba,Sr)(Zr,Ca)(Fe,Mg)2(Ti,Cr,Fe)18O38
Loveringite(Ca,Ce,La)(Zr,Fe)(Mg,Fe)2(Ti,Fe,Cr,Al)18O38
Mapiquiroite(Sr,Pb)(U,Y)Fe2(Ti,Fe3+,Cr3+)18O38
Mianningite(◻,Pb,Ce,Na)(U4+,Mn,U6+)Fe23+ (Ti,Fe3+)18O38
PaseroitePbMn2+(Mn2+,Fe3+)2(V5+,Ti,◻)18O38
SenaitePb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38
UM1987-03-O:FePbTiU~(U,Pb)(Ti,Fe3+,Fe2+,Mn)21O38
Unnamed (HBU UK-4)NaFe2+Zn2(Ti,Fe3+,Nb)6Ti12O38
4.CC.AllendeiteSc4Zr3O12
4.CC.Yttriaite-(Y)Y2O3
4.CC.05ChrombismiteBi16CrO27
4.CC.10FreudenbergiteNa(Ti34+Fe3+)O8
4.CC.15GrossiteCaAl4O7
4.CC.20ChlormayeniteCa12Al14O32[◻4Cl2]
4.CC.25YafsoaniteCa3Te26+Zn3O12
4.CC.30LatrappiteCa2NbFe3+O6
4.CC.30LueshiteNaNbO3
4.CC.30NatroniobiteNaNbO3
4.CC.30PerovskiteCaTiO3
4.CC.30BarioperovskiteBaTiO3
4.CC.30LakargiiteCaZrO3
4.CC.30MegawiteCaSnO3
4.CC.35Loparite-(Ce)(Na,Ce,Sr)(Ce,Th)(Ti,Nb)2O6
4.CC.35MacedonitePbTiO3
4.CC.35TausoniteSrTiO3
4.CC.35IsolueshiteNaNbO3
4.CC.40CrichtoniteSr(Mn,Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH)38
4.CC.40Davidite-(Ce)Ce(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38
4.CC.40Davidite-(La)La(Y,U)Fe2(Ti,Fe,Cr,V)18(O,OH,F)38
4.CC.40Davidite-(Y)(La,Ce,Na,Ca,Pb)(Y,Fe2+,◻)(Fe2+,Mn2+)2(Ti,Fe3+,Nb,Zr)18O38 (hypothetical)
4.CC.40Landauite(Na,Pb)(Mn2+,Y)(Zn,Fe)2(Ti,Fe3+,Nb)18(O,OH,F)O38
4.CC.40Lindsleyite(Ba,Sr)(Zr,Ca)(Fe,Mg)2(Ti,Cr,Fe)18O38
4.CC.40Loveringite(Ca,Ce,La)(Zr,Fe)(Mg,Fe)2(Ti,Fe,Cr,Al)18O38
4.CC.40SenaitePb(Mn,Y,U)(Fe,Zn)2(Ti,Fe,Cr,V)18(O,OH)38
4.CC.40Dessauite-(Y)Sr(Y,U,Mn)Fe2(Ti,Fe,Cr,V)18(O,OH)38
4.CC.40CleusonitePb(U4+,U6+)Fe22+(Ti,Fe2+,Fe3+)18(O,OH)38
4.CC.40Gramaccioliite-(Y)(Pb,Sr)(Y,Mn)Fe23+(Ti,Fe3+)18O38
4.CC.45DiaoyudaoiteNaAl11O17
4.CC.45HawthorneiteBaMgTi3Cr4Fe22+Fe23+O19
4.CC.45Hibonite(Ca,Ce)(Al,Ti,Mg)12O19
4.CC.45LindqvistitePb2Mn2+Fe163+O27
4.CC.45MagnetoplumbitePbFe123+O19
4.CC.45PlumboferritePb2(Fe3+,Mn2+,Mg)11O19
4.CC.45YimengiteK(Cr,Ti,Fe,Mg)12O19
4.CC.45HaggertyiteBaFe42+Fe23+Ti5MgO19
4.CC.45NežilovitePbZn2Mn24+Fe83+O19
4.CC.45BatiferriteBaTi2Fe83+Fe22+O19
4.CC.45Hibonite-(Fe)(Fe,Mg)Al12O19
4.CC.45BarioferriteBaFe123+O19
4.CC.50Jeppeite(K,Ba)2(Ti,Fe3+)6O13
4.CC.55ZenzénitePb3Fe43+Mn34+O15
4.CC.60Mengxianminite (of Huang et al.)(Ca,Na)3(Fe,Mn)2Mg2(Sn,Zn)5Al8O29
7.14.1EskolaiteCr2O3
7.14.2BracewelliteCrO(OH)
7.14.3GrimaldiiteCrO(OH)
7.14.4GuyanaiteCrO(OH)
7.14.5YimengiteK(Cr,Ti,Fe,Mg)12O19
7.14.7McconnelliteCu1+CrO2
7.14.8RedledgeiteBa(Ti64+Cr23+)O16
7.14.9HawthorneiteBaMgTi3Cr4Fe22+Fe23+O19
7.14.10ZincochromiteZnCr2O4
7.14.11WattersiteHg41+Hg2+O2(CrO4)
7.14.12ChromiteFe2+Cr2O4
7.14.13MagnesiochromiteMgCr23+O4

Other Names for Mathiasite

Name in Other Languages:
German:Mathiasit
Simplified Chinese:蒙山矿
Spanish:Mathiasita

Other Information

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 Mathiasite

Reference List:
American Mineralogist (1983): 68: 494-505.

Contributions to Mineralogy and Petrology: 117: 164-174.

Internet Links for Mathiasite

mindat.org URL:
https://www.mindat.org/min-2591.html
Please feel free to link to this page.

Localities for Mathiasite

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.
(TL) indicates type locality for a valid mineral species. (FRL) indicates first recorded locality for everything else. ? indicates mineral may be doubtful at this locality. All other localities listed without reference should be considered as uncertain and unproven until references can be found.
China
 
  • Shandong Province
    • Linyi Prefecture
      • Fei Co.
Weiguo Zhong, Dengshi Zhou, Jitai Liu, Xiaoping Cheng, and Lihua Xie (2003): Shandong Geology 19(1), 43-49
AM 73 (1988), 441; Qi Lu and Zhizhong Peng (1987): Crystal structure of Mathiasite. Acta Petrologica et Mineralogica 6(3), 221-229 (in Chinese with English abstract).
        • Mengyin Co.
Jianhong Zhang, Guojie Yang, and Zhaohui Li (1986): Kuangwu Xuebao 6, 344-349.
Russia
 
  • Eastern-Siberian Region
    • Sakha Republic (Saha Republic; Yakutia)
Sobolev, N., Kaminsky, F., Griffin, W., Yefimova, E., Win, T., Ryan, C., and Botkunov, A. (1997) Mineral inclusions in diamonds from the Sputnik kimberlite pipe, Yakutia. Lithos: 39: 135-157.
South Africa (TL)
 
  • Free State Province
    • Xhariep District
      • Jagersfontein
S.E. Haggerty, J.R. Smyth, A.J. Erlank, R.S. Rickard, R.V. Danchin: Amer. Mineral. 68:494-505 (1983)
  • Northern Cape Province
    • Francis Baard District
      • Kimberley
S.E. Haggerty, J.R. Smyth, A.J. Erlank, R.S. Rickard, R.V. Danchin: Amer. Mineral. 68:494-505 (1983)
S.E. Haggerty, J.R. Smyth, A.J. Erlank, R.S. Rickard, R.V. Danchin: Amer. Mineral. 68:494-505 (1983)
    • John Taolo Gaetsewe District
      • Mackenzie's Post District
S.E. Haggerty, J.R. Smyth, A.J. Erlank, R.S. Rickard, R.V. Danchin: Amer. Mineral. 68:494-505 (1983)
Mineral and/or Locality  
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