Chemistry Reference
In-Depth Information
Table 3.1
(continue)
Mineral
Val.
Coord.
f
RT
f
80
Aegerine
Na
1.02
Ca
0.06
Mg
0.04
Fe
0.97
-
Al
0.06
Ti
0.06
Si
1.84
O
6
3+
O
6
(M1)
0.874
0.936
Enstatite
Mg
1.65
Fe
0.27
Al
0.05
Si
2.02
O
6
2+
O
6
(M2)
0.675
0.882
2+
O
6
(M1)
0.773
0.902
Olivine
d
(Mg,Fe)
2
SiO
4
2+
O
6
0.744
0.893
Some others
Ankerite
CaFe
0.5
Mg
0.5
(CO
3
)
2
2+
O
6
0.711
0.822
Siderite
FeCO
3
2+
O
6
0.743
0.891
a
b
c
d
Range for 3 samples,
Range for 10 samples,
Well crystallized
Unknown composition