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Unnamed (Ca-analogue of Manganiandrosite-(La))

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Formula:
{(Ca,(La,REE),Mn
2+
 
)
 
2
}{(Mn
3+
 
,Fe
3+
 
,Al)Al(Mn
2+
 
,Mg)}(Si
 
2
O
 
7
)((Si,Al,As)O
 
4
)O(OH)
Member of:Epidote Group


A member of the Epidote Group.

Ca-dominant analogue of androsite-(La). Good name for the species would be 'manganiallanite-(La)' by analogy with ferriallanite-(Ce). Described without approval in 1991.

Classification of Unnamed (Ca-analogue of Manganiandrosite-(La))

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Chemical Properties of Unnamed (Ca-analogue of Manganiandrosite-(La))

Formula:
{(Ca,(La,REE),Mn
2+
 
)
 
2
}{(Mn
3+
 
,Fe
3+
 
,Al)Al(Mn
2+
 
,Mg)}(Si
 
2
O
 
7
)((Si,Al,As)O
 
4
)O(OH)
Idealised Formula:
{CaLa}{Mn
3+
 
AlMn
2+
 
}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
Essential elements:Al, Ca, H, Mn, O, Si
All elements listed in formula:Al, As, Ca, Fe, H, La, Mg, Mn, O, Si

Relationship of Unnamed (Ca-analogue of Manganiandrosite-(La)) to other Species

Member of:Epidote Group
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)
├ůskagenite-(Nd)
{Mn
2+
 
Nd}{Al
 
2
Fe
3+
 
}(Si
 
2
O
 
7
)(SiO
 
4
)O
 
2
Clinozoisite
{Ca
 
2
}{Al
 
3
}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
Clinozoisite-(Sr)
{CaSr}{Al
 
3
}(Si
 
2
O
 
7
)(SiO
 
4
)O(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)
Dollaseite-(Ce)
{CaCe}{MgAlMg}(Si
 
2
O
 
7
)(SiO
 
4
)(OH)F
Epidote
{Ca
 
2
}{Al
 
2
Fe
3+
 
}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
Epidote-(Pb)
{CaPb}{Al
 
2
Fe
3+
 
}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
Epidote-(Sr)
{CaSr}{Al
 
2
Fe
3+
 
}(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)
Khristovite-(Ce)
{CaCe}{MgAlMn
2+
 
}(Si
 
2
O
 
7
)(SiO
 
4
)(OH)F
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)
Manganipiemontite-(Sr)
{CaSr}{Mn
3+
 
AlMn
3+
 
}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
Mukhinite
{Ca
 
2
}{Al
 
2
V
3+
 
}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
Piemontite
{Ca
 
2
}{Al
 
2
Mn
3+
 
}(Si
 
2
O
 
7
)(SiO
 
4
)O(OH)
Piemontite-(Pb)
CaPbAl
 
2
Mn
3+
 
[Si
 
2
O
 
7
][SiO
 
4
]O(OH)
Piemontite-(Sr)
{CaSr}{Al
 
2
Mn
3+
 
}(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 (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)
Zoisite
{Ca
 
2
}{Al
 
3
}(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 (Ca-analogue of Manganiandrosite-(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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