List of specified cards with unique numbers under unique name
FERROCOLUMBITE
NN
Card
Specie
Formula
Space Group
1.
1500
[3], t-columbite-tantalite, at 100
o
K
(Nb,Ta,Fe)
2
(Fe,Nb,Ta)O
6
P bcn
2.
1501
[4], t-columbite-tantalite, at 293
o
K
(Nb,Ta,Fe)
2
(Fe,Nb,Ta)O
6
P bcn
3.
1502
[5], t-columbite-tantalite
(Fe,Nb)(Nb,Ta)
2
O
6
P bcn