Geoscience Reference
In-Depth Information
Compound
Representative
Cell Parameter
(
˚
)
Rare Earth, Co.
No., Average Bond
Distance (
˚
)
Tetrahedral
Radical Form
Rare Earth
Polyhedra
v
5
4200
˚
3
MR[PO
4
]
2
.H
2
O
Orthorhombic
a
5
12.793
˚
K
2
Ce[PO
4
]
2
.H
2
O
b
5
14.015
˚
M
5
NH
4
,K,Na
c
5
15.945
˚
v
5
2854
˚
3
R
5
Yb, Ce
M
3
R
2
[PO
4
]
3
K
3
Ce
2
[PO
4
]
3
P3ml, P
31
m
Z
3
5
M
5
Na,K
a
5
9.30
R
5
Ce
Gd
c
5
14.41
KR[PO
3
]
4
KHo[PO
3
]
4
C2/cZ
5
4
Ho
8
2.34
4-Membered rings
Discrete polyhedra
R
5
Eu, Ho
a
5
7.798
b
5
12.310
c
5
10.551
β
5
112.63
β
-CsR[PO
3
]
4
β
-CsNd[PO
3
]
4
143d Z
5
12
Nd
8
2.46
4-Membered rings
Discrete polyhedra
R
5
Pr, Nd
a
5
15.233
LiNd[PO
3
]
4
C2/cZ
5
4
Nd
8
2.46
Chains with a period
of 4-tetrahedra
Discrete polyhedra
a
5
16.408
b
5
7.035
c
5
9.726
β
5
126.38
α
-KR[PO
3
]
4
α
-KNd[PO
3
]
4
P
21
Z
5
2
Nd
8
2.44
Chains with a period
of 4-tetrahedra
Discrete polyhedra
R
5
Nd, Sm, Dy, Ho, Er
a
5
8.007
b
5
8.433
(Continued)
