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Unnamed (Mn-analogue of Ferriakasakaite-(La))

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Formula:
{CaLa}{Mn
3+
 
AlMn
2+
 
}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
Really {(Ca,(La,REE),Mn#2+#)^2}{(Mn#3+#,Fe#3+#,Al)Al(Mn#2+#,Mg)}(Si^2O^7)((Si,Al,As)O^4)O(OH)
Member of:Allanite Group > Epidote Supergroup


A member of the Allanite Group of the Epidote Supergroup.

Mn3+-dominant analogue of Ferriakasakaite-(La). Good name by analogy for the species would be Manganiakasakaite-(La). Described without approval in 1991.

Classification of Unnamed (Mn-analogue of Ferriakasakaite-(La))

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Chemical Properties of Unnamed (Mn-analogue of Ferriakasakaite-(La))

Formula:
{CaLa}{Mn
3+
 
AlMn
2+
 
}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)


Really {(Ca,(La,REE),Mn#2+#)^2}{(Mn#3+#,Fe#3+#,Al)Al(Mn#2+#,Mg)}(Si^2O^7)((Si,Al,As)O^4)O(OH)
Simplified for copy/paste:{CaLa}{Mn3+AlMn2+}(Si2O7)(SiO4)O(OH)
Essential elements:Al, Ca, H, La, Mn, O, Si
All elements listed in formula:Al, Ca, H, La, Mn, O, Si

Relationship of Unnamed (Mn-analogue of Ferriakasakaite-(La)) to other Species

Member of:Allanite Group > Epidote Supergroup
Other Members of Group:

- +
Allanite-(Ce)
{CaCe}{Al
 
2
Fe
2+
 
}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
Allanite-(La)
{CaLa}{Al
 
2
Fe
2+
 
}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
Allanite-(Nd)
{CaNd}{Al
 
2
Fe
2+
 
}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
Allanite-(Y)
{CaY}{Al
 
2
Fe
2+
 
}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
Androsite-(Ce)
(Mn
2+
 
REEAlAlMn
2+
 
(SiO
 
4
)
 
3
OH)
Dissakisite-(Ce)
{CaCe}{Al
 
2
Mg}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
Dissakisite-(La)
{CaLa}{Al
 
2
Mg}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
Ferriakasakaite-(La)
CaLaFe
3+
 
AlMn
2+
 
(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
Ferriallanite-(Ce)
{CaCe}{Fe
3+
 
AlFe
2+
 
}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
Ferriallanite-(La)
{CaLa}{Fe
3+
 
AlFe
2+
 
}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
Ferriandrosite-(Ce)
(Mn
2+
 
REEFe
3+
 
AlMn
2+
 
(SiO
 
4
)
 
3
OH)
Ferriandrosite-(La)
MnLaFe
3+
 
AlMn
2+
 
(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
Manganiandrosite-(Ce)
{(Mn
2+
 
,Ca)(Ce,REE)}{Mn
3+
 
AlMn
2+
 
}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
Manganiandrosite-(La)
{Mn
2+
 
La}{Mn
3+
 
AlMn
2+
 
}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
Uedaite-(Ce)
{Mn
2+
 
Ce}{Al
 
2
Fe
2+
 
}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
Unnamed (Ce- and Mn-analogue of Ferriakasakaite-(La))
{Ca,(Ce,La,Nd),Mn
2+
 
}
 
2
(Mn
3+
 
,Fe
3+
 
,Al)Al(Mn
2+
 
,Mg)(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
Unnamed (Mg-analogue of Ferriallanite-(Ce))
{CaCe}{(Fe
3+
 
,Al)Al(Mg,Fe
2+
 
)}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
Unnamed (Mn-analogue of Ferriallanite-(Ce))
{CaCe}{Fe
3+
 
AlMn
2+
 
}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
Vanadoallanite-(La)
{CaLa}{V
3+
 
AlFe
2+
 
}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
Vanadoandrosite-(Ce)
{Mn
2+
 
Ce}{V
3+
 
AlMn
2+
 
}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)

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 (Mn-analogue of Ferriakasakaite-(La))

Reference List:

- +
Smol'yaninova, V.N., Nasedkina V.H. (1991) Orthite with unusually high manganese content, - Izvestiya AN SSSR, seriya geologicheskaya, N6, p. 149-154 (in Russian).

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