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Calciosamarskite

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Mitchell Co., North Carolina, USA
© 2010, JGW




Formula:
(Ca,Fe
3+
 
,Y)
 
2
(Nb,Ta,Ti)
 
2
O
 
8
System:MonoclinicColour:Black
Hardness:6½
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

IMA status:Valid - first described prior to 1959 (pre-IMA) - "Grandfathered"
Strunz 8th edition ID:4/D.19-55
Nickel-Strunz 10th (pending) edition ID: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

Co-type Localities:Woodcox Mine, Hybla, Monteagle Township, Hastings Co., Ontario, Canada
McQuire Mine, Blackstone Lake, Conger Township, Parry Sound District, Ontario, Canada

Physical Properties of Calciosamarskite

Lustre:Sub-Metallic
Colour:Black
Streak:Brown-grey
Hardness (Mohs):6½
Cleavage:None Observed
Fracture:Irregular/Uneven, Sub-Conchoidal
Density (measured):4.48 - 4.74 g/cm3

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,Fe
3+
 
,Y)
 
2
(Nb,Ta,Ti)
 
2
O
 
8
Essential elements:Ca, Nb, O
All elements listed in formula:Ca, Fe, Nb, O, Ta, Ti, Y

Relationship of Calciosamarskite to other Species

Structurally related to group(s):
Samarskite Group
Related Minerals - Nickel-Strunz Grouping):

- +
4.DB.05Argutite
GeO
 
2
4.DB.05Cassiterite
SnO
 
2
4.DB.05Plattnerite
PbO
 
2
4.DB.05Pyrolusite
MnO
 
2
4.DB.05Rutile
TiO
 
2
4.DB.05Tripuhyite
Fe
3+
 
Sb
5+
 
O
 
4
4.DB.05Tugarinovite
MoO
 
2
4.DB.05Varlamoffite
(Sn,Fe)(O,OH)
 
2
4.DB.10Byströmite
MgSb
 
2
O
 
6
4.DB.10Tapiolite-(Fe)
(Fe,Mn)(Ta,Nb)
 
2
O
 
6
4.DB.10Tapiolite-(Mn)
(Mn,Fe)(Ta,Nb)
 
2
O
 
6
4.DB.10Ordoñezite
ZnSb
 
2
O
 
6
4.DB.15bAkhtenskite
ε-Mn
4+
 
O
 
2
4.DB.15cNsutite
(Mn
4+
 
,Mn
2+
 
)(O,OH)
 
2
4.DB.15aParamontroseite
V
4+
 
O
 
2
4.DB.15aRamsdellite
Mn
4+
 
O
 
2
4.DB.20Scrutinyite
alpha-PbO
 
2
4.DB.25Ishikawaite
U
4+
 
Fe
2+
 
Nb
 
2
O
 
8
4.DB.25Ixiolite
(Ta,Nb,Sn,Fe,Mn)
 
4
O
 
8
4.DB.25Samarskite-(Y)
(Y,Fe
3+
 
,Fe
2+
 
,U,Th,Ca)
 
2
(Nb,Ta)
 
2
O
 
8
4.DB.25Srilankite
ZrTi
 
2
O
 
6
4.DB.25Yttrocolumbite-(Y)
Y(U
4+
 
,Fe
2+
 
)Nb
 
2
O
 
8
4.DB.25Samarskite-(Yb)
(Yb,Fe
3+
 
)
 
2
(Nb,Ta)
 
2
O
 
8
4.DB.30Ferberite
FeWO
 
4
4.DB.30Hübnerite
MnWO
 
4
4.DB.30Sanmartinite
(Zn,Fe)WO
 
4
4.DB.30Krasnoselskite
CoWO
 
4
4.DB.30Heftetjernite
ScTaO
 
4
4.DB.30Huanzalaite
MgWO
 
4
4.DB.35Columbite-(Fe)
FeNb
 
2
O
 
6
4.DB.35Tantalite-(Fe)
FeTa
 
2
O
 
6
4.DB.35Columbite-(Mn)
(Mn,Fe)(Nb,Ta)
 
2
O
 
6
4.DB.35Tantalite-(Mn)
MnTa
 
2
O
 
6
4.DB.35Columbite-(Mg)
(Mg,Fe,Mn)(Nb,Ta)
 
2
O
 
6
4.DB.35Qitianlingite
(Fe,Mn)
 
2
(Nb,Ta)
 
2
WO
 
10
4.DB.35Magnocolumbite
4.DB.35Tantalite-(Mg)
(Mg,Fe
2+
 
)(Ta,Nb)
 
2
O
 
6
4.DB.40Ferrowodginite
FeSnTa
 
2
O
 
8
4.DB.40Lithiotantite
Li(Ta,Nb)
 
3
O
 
8
4.DB.40Lithiowodginite
LiTa
 
3
O
 
8
4.DB.40Titanowodginite
MnTiTa
 
2
O
 
8
4.DB.40Wodginite
Mn(Sn,Ta)Ta
 
2
O
 
8
4.DB.40Ferrotitanowodginite
Fe
2+
 
TiTa
 
2
O
 
8
4.DB.40Wolframowodginite
Mn(Mn,Sn,Fe,Ta)(W,Ta,Nb)
 
2
O
 
8
4.DB.45Tivanite
V
3+
 
TiO
 
3
(OH)
4.DB.50Carmichaelite
(Ti,Cr,Fe)[O
 
2-x
(OH)
 
x
]
4.DB.55Alumotantite
AlTaO
 
4
4.DB.60Biehlite
((Sb,As)O)
 
2
[MoO
 
4
]

Other Names for Calciosamarskite

Other Languages:
German:Calciosamarskit
Japanese:カルシオサマルスキー石
Spanish:Calciosamarskita

Other Information

Health Warning: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

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    • Localities for Calciosamarskite

    The 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.
    Hide Locality List
    (TL) indicates type locality. ? 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.
    Canada
     
    • Ontario
      • Hastings Co.
        • Monteagle Township
          • Hybla
    		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
          • Blackstone Lake
    		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
    		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.
    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
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    Copyright © Jolyon Ralph and Ida Chau 1993-2013. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Further information contact the Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of hundreds of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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