Polysomatic pyrochlore-murataite series with modular structure and four structural varieties of murataite (3C, 5C, 7C, and 8C) are described by Laverov et al. (2011).
The structure is a derivative of that of fluorite. The synthetic 8C polytype is a candidate for long-term immobilization of high-level nuclear waste. Its octahedral framework is modular, consisting of alternate murataite and pyrochlore modules to form a transitional substructure combining parts of the struture of the 3C polytype and pyrochlore.
History
Activities related to discovery and approval of the group members
Structural context
Murataite-(Y)
Crystal System isometricCrystal Class hexoctahedralSpace Group Fm-3m
a14.886
b14.886
c14.886
alpha90
beta90
gamma90
volume3298.63
Based on 1 measurements
Chemical context
Stoichiometric formulas
Murataite-(Y)
mindat.org
March 13, 2023(Y,Na)6Zn(Zn,Fe3+)4(Ti,Nb,Na)12O29(O,F,OH)10F4
IMA
March 13, 2023(Y,Na)6Zn(Zn,Fe3+)4(Ti,Nb,Na)12O29(O,F,OH)10F4
mineralogy.rocks
Aug. 30, 2022(Y,Na)6Zn(Zn,Fe3+)4(Ti4+,Nb5+,Na)12O29(O,F,OH)10F4
Elements recorded on EPMA
1
Ca
1
Dy
1
Er
1
F
1
Fe
1
Ho
1
Lu
1
Mn
1
Na
1
Nb
1
O
1
Si
1
Ti
1
Tm
1
Y
1
Yb
1
Zn
Physical properties
ColorColor entities, recognized using a custom trained NER model
Color noteOriginal color note from the source
Black
StreakStreak entities, recognized using a custom trained NER model