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Unnamed (Mg-analogue of Ferriallanite-(Ce))

Big Photo

Rodberg mines, Nora, Västmanland, Sweden
© Pavel M. Kartashov

Formula:
{CaCe}{(Fe
3+
 
,Al)Al(Mg,Fe
2+
 
)}[O|OH|SiO
 
4
|Si
 
2
O
 
7
]
Isostructural with:Allanite-(Ce)


New unnamed mineral species in the epidote group, closely related with Ferriallanite-(Ce) and Dissakisite-(Ce).
Mentioned by Kjell Gatedal as "ferriallanite-(Ce)" from Rödbergsgruvan, Nora, Västmanland, Sweden.

Apparently the Mg-analogue of Unnamed (Mn-analogue of ferriallanite-(Ce)) recently decribed by Bonazzi et al. (2009).

Classification of Unnamed (Mg-analogue of Ferriallanite-(Ce))

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Chemical Properties of Unnamed (Mg-analogue of Ferriallanite-(Ce))

Formula:
{CaCe}{(Fe
3+
 
,Al)Al(Mg,Fe
2+
 
)}[O|OH|SiO
 
4
|Si
 
2
O
 
7
]
Idealised Formula:
{CaCe}{Fe
3+
 
AlMg}[O|OH|SiO
 
4
|Si
 
2
O
 
7
]
Essential elements:Al, Ca, Ce, Fe, H, Mg, O, Si
All elements listed in formula:Al, Ca, Ce, Fe, H, Mg, O, Si

Relationship of Unnamed (Mg-analogue of Ferriallanite-(Ce)) to other Species

Member of Group:
Epidote Group:
{A
 
2
}{M
 
3
}[O|OH|SiO
 
4
|Si
 
2
O
 
7
]

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 Unnamed (Mg-analogue of Ferriallanite-(Ce))

Reference List:Pavel Kartashov data

Paola Bonazzi, Dan Holtstam, Luca Bindi, Per Nysten, and GianCarlo Capitani (2009): Multi-analytical approach to solve the puzzle of an allanite-subgroup mineral from Kesebol, Västra Götaland, Sweden. Am. Mineral. 94, 121-134.

Internet Links for Unnamed (Mg-analogue of Ferriallanite-(Ce))

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    Localities for Unnamed (Mg-analogue of Ferriallanite-(Ce))

    (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.
    Sweden
     
    • Västmanland
      • Nora
    		Pavel M. Kartashov analytical data, material of Kjell Gatedal
    Mineral and/or Locality
    Google
     
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