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Calciosamarskite

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Formula:
(Ca,Fe3+,Y)2(Nb,Ta,Ti)2O8
System:
Monoclinic
Colour:
Black
Hardness:
Name:
In allusion to the composition, containing calcium, and its relationshp to samarskite.
Samarskite Group.

The empirical formula based on Hanson et. al. (1999) is (Ca0.31Y0.17Fe2+0.26U0.19Na0.08REE0.23)1.24(Nb0.79Ta0.07Ti0.04)0.90O4; all species are required for charge balance, and iron is assumed to be ferrous, also to maintain charge balance. The ideal formula, as given above, cannot have any divalent cations in the A position in order to maintain charge neutrality.

Classification of Calciosamarskite

Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
4.DB.25

4 : OXIDES (Hydroxides, V[5,6] vanadates, arsenites, antimonites, bismuthites, sulfites, selenites, tellurites, iodates)
D : Metal: Oxygen = 1:2 and similar
B : With medium-sized cations; chains of edge-sharing octahedra
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Type Occurrence of Calciosamarskite

Physical Properties of Calciosamarskite

Sub-Metallic
Colour:
Black
Streak:
Brown-grey
Hardness (Mohs):
Cleavage:
None Observed
Fracture:
Irregular/Uneven, Sub-Conchoidal
Density:
4.48 - 4.74 g/cm3 (Measured)    

Crystallography of Calciosamarskite

Crystal System:
Monoclinic
Morphology:
Massive or in rough, square prisms (Parry Sound material)

Optical Data of Calciosamarskite

Type:
Isotropic

Chemical Properties of Calciosamarskite

Formula:
(Ca,Fe3+,Y)2(Nb,Ta,Ti)2O8
Essential elements:
All elements listed in formula:

Relationship of Calciosamarskite to other Species

Other Members of Group:
IshikawaiteU4+Fe2+Nb2O8
Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
Samarskite-(Yb)(Yb,Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
SrilankiteZrTi2O6
4.DB.05ArgutiteGeO2
4.DB.05CassiteriteSnO2
4.DB.05PlattneritePbO2
4.DB.05PyrolusiteMnO2
4.DB.05RutileTiO2
4.DB.05TripuhyiteFe3+Sb5+O4
4.DB.05TugarinoviteMoO2
4.DB.05Varlamoffite(Sn,Fe)(O,OH)2
4.DB.10ByströmiteMgSb2O6
4.DB.10Tapiolite-(Fe)(Fe,Mn)(Ta,Nb)2O6
4.DB.10Tapiolite-(Mn)(Mn,Fe)(Ta,Nb)2O6
4.DB.10OrdoñeziteZnSb2O6
4.DB.15bAkhtenskiteε-Mn4+O2
4.DB.15cNsutite(Mn4+,Mn2+)(O,OH)2
4.DB.15aParamontroseiteV4+O2
4.DB.15aRamsdelliteMn4+O2
4.DB.20Scrutinyiteα-PbO2
4.DB.25IshikawaiteU4+Fe2+Nb2O8
4.DB.25Ixiolite(Ta,Nb,Sn,Fe,Mn)4O8
4.DB.25Samarskite-(Y)(Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
4.DB.25SrilankiteZrTi2O6
4.DB.25Yttrocolumbite-(Y)Y(U4+,Fe2+)Nb2O8
4.DB.25Samarskite-(Yb)(Yb,Y,Fe3+,Fe2+,U,Th,Ca)2(Nb,Ta)2O8
4.DB.30FerberiteFeWO4
4.DB.30HübneriteMnWO4
4.DB.30Sanmartinite(Zn,Fe)WO4
4.DB.30KrasnoselskiteCoWO4
4.DB.30HeftetjerniteScTaO4
4.DB.30HuanzalaiteMgWO4
4.DB.35Columbite-(Fe)FeNb2O6
4.DB.35Tantalite-(Fe)FeTa2O6
4.DB.35Columbite-(Mn)(Mn,Fe)(Nb,Ta)2O6
4.DB.35Tantalite-(Mn)MnTa2O6
4.DB.35Columbite-(Mg)(Mg,Fe,Mn)(Nb,Ta)2O6
4.DB.35Qitianlingite(Fe,Mn)2(Nb,Ta)2WO10
4.DB.35Magnocolumbite
4.DB.35Tantalite-(Mg)(Mg,Fe2+)(Ta,Nb)2O6
4.DB.40FerrowodginiteFeSnTa2O8
4.DB.40LithiotantiteLi(Ta,Nb)3O8
4.DB.40LithiowodginiteLiTa3O8
4.DB.40TitanowodginiteMnTiTa2O8
4.DB.40WodginiteMn(Sn,Ta)Ta2O8
4.DB.40FerrotitanowodginiteFe2+TiTa2O8
4.DB.40WolframowodginiteMn(Mn,Sn,Fe,Ta)(W,Ta,Nb)2O8
4.DB.45TivaniteV3+TiO3(OH)
4.DB.50Carmichaelite(Ti,Cr,Fe)[O2-x(OH)x]
4.DB.55AlumotantiteAlTaO4
4.DB.60Biehlite((Sb,As)O)2[MoO4]

Other Names for Calciosamarskite

Name in Other Languages:

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 Calciosamarskite

Reference List:
Ellsworth (1928), American Mineralogist: 13: 63, 66.

Palache, Charles, Harry Berman & Clifford Frondel (1944), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Volume I: Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, Inc., New York. 7th edition, revised and enlarged: 772.

Hanson, S.L., Simmons, W.B., Falster, A.U., Foord, E.E., Litche, F.E. (1999): Mineralogical Magazine, 63, 27-36

Internet Links for Calciosamarskite

Localities for Calciosamarskite

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.
Australia
 
  • Western Australia
    • East Pilbara Shire
      • Shaw River District
Pegmatites of Western Australia; M Jacobson, M Calderwood, B Grguric; Hesperian Press, Perth, 2007.
Canada (TL)
 
  • Ontario
    • Hastings Co.
      • Monteagle Township
ELLSWORTH, H.V. (1928a): A mineral related to samarskite from the Woodcox mine, Hybla Ontario. American Mineralogist 13, 63-65. ELLSWORTH, H.V. (1928b): A mineral related to samarskite from Parry Sound, Ontario. American Mineralogist 13, 66-68. HANSON, S.L., SIMMONS, W.B., FALSTER, A.U., FOORD, E.E. & LICHTE, F.E. (1999): Proposed nomenclature for samarskite-group minerals: new data on ishikawaite and calciosamarskite. Mineralogical Magazine 63, 27-36.
    • Parry Sound District
      • Conger Township
ELLSWORTH, H.V. (1928a): A mineral related to samarskite from the Woodcox mine, Hybla Ontario. American Mineralogist 13, 63-65. ELLSWORTH, H.V. (1928b): A mineral related to samarskite from Parry Sound, Ontario. American Mineralogist 13, 66-68. HANSON, S.L., SIMMONS, W.B., FALSTER, A.U., FOORD, E.E. & LICHTE, F.E. (1999): Proposed nomenclature for samarskite-group minerals: new data on ishikawaite and calciosamarskite. Mineralogical Magazine 63, 27-36.
Czech Republic
 
  • Bohemia (Böhmen; Boehmen)
    • South Bohemia Region
      • Písek
Pauliš P., Kopecký S., Černý P. 2007: Uranové minerály České Republiky a jejich naleziště. 1. část. (Kutna Hora, issue 1)
  • Moravia (Mähren; Maehren)
    • South Moravia Region
      • Tišnov
        • Drahonín
Škoda, R., Novák, M.: Akcesorické Nb-Ta-Ti minerály z pegmatitu v uranovém dole Drahonín, strážecké moldanubikum. Acta Musei Moraviae, Scientiae geologicae, 2004, roč. 89, s. 55 - 66.
    • Vysočina Region
      • Třebíč
Škoda, R., Novák, M., Houzar, S.: Granitické NYF pegmatity třebíčského plutonu. Acta Musei Moraviae, Scientiae geologicae, 2006, roč. 91, s. 129 - 176.
Poland
 
  • Lower Silesia (Dolnośląskie)
    • Dzierżoniów District
      • Piława Górna (Ober Peilau; Gnadenfrei)
PIECZKA et al. 2010: Nb-Ta minerals in pegmatites in the DSS mine at Piława Górna, Góry Sowie Block, southwestern Poland. Mineralogia - Special Papers, 37.
Russia
 
  • Urals Region
    • Southern Urals
      • Chelyabinsk Oblast'
        • Ilmen Mts
Pavel M. Kartashov analytical data (2013)
USA
 
  • Colorado
    • Custer Co.
      • Wet Mountains Area
        • McKinley Mountain Area
Minerals of Colorado (1997) Eckels, E. B.
  • North Carolina
Hanson,S.L.,Simmons,W.B.,Falster,A.U.,Foord,E.E.,and Lichte,F.E.,1999,Proposed nomenclature for samarskite-group minerals:new data on ishikawaite and calciosamarskite:Mineralogical Magazine,Feb 1999,Vol.63(1)pp.27-36
Mineral and/or Locality  
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