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

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Formula:
{CaLa}{Mn3+AlMn2+}(Si2O7)(SiO4)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)
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}{Mn3+AlMn2+}(Si2O7)(SiO4)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)
Essential elements:
All elements listed in formula:

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

Other Members of Group:
Allanite-(Ce){CaCe}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Allanite-(La){CaLa}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Allanite-(Nd){CaNd}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Allanite-(Y){CaY}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Androsite-(Ce)(Mn2+REEAlAlMn2+(SiO4)3OH)
Dissakisite-(Ce){CaCe}{Al2Mg}(Si2O7)(SiO4)O(OH)
Dissakisite-(La){CaLa}{Al2Mg}(Si2O7)(SiO4)O(OH)
Ferriakasakaite-(La)CaLaFe3+AlMn2+(Si2O7)(SiO4)O(OH)
Ferriallanite-(Ce){CaCe}{Fe3+AlFe2+}(Si2O7)(SiO4)O(OH)
Ferriallanite-(La){CaLa}{Fe3+AlFe2+}(Si2O7)(SiO4)O(OH)
Ferriandrosite-(Ce)(Mn2+REEFe3+AlMn2+(SiO4)3OH)
Ferriandrosite-(La)MnLaFe3+AlMn2+(Si2O7)(SiO4)O(OH)
Manganiandrosite-(Ce){(Mn2+,Ca)(Ce,REE)}{Mn3+AlMn2+}(Si2O7)(SiO4)O(OH)
Manganiandrosite-(La){Mn2+La}{Mn3+AlMn2+}(Si2O7)(SiO4)O(OH)
Uedaite-(Ce){Mn2+Ce}{Al2Fe2+}(Si2O7)(SiO4)O(OH)
Unnamed (Ce- and Mn-analogue of Ferriakasakaite-(La)){Ca,(Ce,La,Nd),Mn2+}2(Mn3+,Fe3+,Al)Al(Mn2+,Mg)(Si2O7)(SiO4)O(OH)
Unnamed (Mg-analogue of Ferriallanite-(Ce)){CaCe}{(Fe3+,Al)Al(Mg,Fe2+)}(Si2O7)(SiO4)O(OH)
Unnamed (Mn-analogue of Ferriallanite-(Ce)){CaCe}{Fe3+AlMn2+}(Si2O7)(SiO4)O(OH)
Vanadoallanite-(La){CaLa}{V3+AlFe2+}(Si2O7)(SiO4)O(OH)
Vanadoandrosite-(Ce){Mn2+Ce}{V3+AlMn2+}(Si2O7)(SiO4)O(OH)

Other Information

Health Risks:
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).

Internet Links for Unnamed (Mn-analogue of Ferriakasakaite-(La))

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

Mineral and/or Locality  
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