Geoscience Reference
In-Depth Information
Compound
Representative
Cell Parameter
(
˚
)
Rare Earth, Co.
No., Average
Bond Distance
˚
Tetrahedral Radical
Form
Rare Earth
Polyhedra
R [PO
4
]
Y[PO
4
]
14/and Z
5
4
Y
8
2.28
Orthotetrahedra
Framework
R
5
Gd
Lu, Y, Sc
a
5
6.885
c
5
5.982
R [PO
4
]
Ce[PO
4
]
P3
1
21 Z
5
3
Ce
8
2.48
Orthotetrahedra
Framework
R
5
La
Eu
a
5
7.055
c
5
6.439
R [PO
4
]
Ce[PO
4
] monazite
P2
1
/nZ
5
4
Ce
8
2.51
Orthotetrahedra
Framework
R
5
La
Dy
a
5
6.78
b
5
7.00
c
5
6.44
β
5
103.63
YbH
2
[P
3
O
10
]
A
2
Z
5
2
Yb
6
2.19
Triortho groups
Discrete polyhedra
a
5
5.617
b
5
6.666
c
5
10.011
β
5
97.32
R [PO
3
]
3
Nd [PO
3
]
3
C222
1
Z
5
4
Nd
8
2.43
Chains with a period
of 6-tetrahedra
Columns
R
5
La
Gd
a
5
11.172
b
5
8.533
c
5
7.284
R [PO
3
]
3
Yb [PO
3
]
3
P2
1
/cZ
5
12
Yb
6
2.20
Chains with a period
of 6-tetrahedra
Discrete polyhedra
R
Gd
Lu
a
5
11.219
5
b
5
19.983
c
5
9.999
(Continued)
