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Mitchell Co., North Carolina, USA
© 2010, JGW
|Name:||In allusion to the composition, containing calcium, and its relationshp to samarskite.|
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, Monteagle Township, Hastings Co., Ontario, Canada|
McQuire Mine, Conger Township, Parry Sound District, Ontario, Canada
Physical Properties of Calciosamarskite
|Density (measured):||4.48 - 4.74 g/cm3|
Crystallography of Calciosamarskite
|Morphology:||Massive or in rough, square prisms (Parry Sound material)|
Optical Data of Calciosamarskite
Chemical Properties of Calciosamarskite
|Simplified for copy/paste:||(Ca,Fe3+,Y)2(Nb,Ta,Ti)2O8|
|Essential elements:||Ca, Nb, O|
|All elements listed in formula:||Ca, Fe, Nb, O, Ta, Ti, Y|
Relationship of Calciosamarskite to other Species
|Member of:||Samarskite Group|
|Other Members of Group:|
|Related Minerals - Nickel-Strunz Grouping):|
Other Names for Calciosamarskite
|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
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
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.
(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.
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