Iron: Properties
Element
Name
: Iron
Atomic Number
: 26
Chemical Symbol
: Fe
Electronic Configuration
: [Ar]3d
6
4s
2
Abundance
:
Earth
: 4.1x10
4
ppm
Solar System
: 3.16x10
7
(rel. to [H]=1x10
12
)
Ocurrence
Chamosite
(Fe
2+
,Mg,Fe
3+
)
5
Al(Si
3
Al)O
10
(OH,O)
8
Goethite
FeO(OH)
Hematite
Fe
2
O
3
Ilvaite
CaFe
2+
Fe
3+
O[Si
2
O
7
](OH)
Lepidocrocite
gamma-Fe
3+
O(OH)
Limonite
FeO(OH).nH
2
O
Magnesite
MgCO
3
Magnetite
Fe
3
O
4
Marcasite
FeS
2
Native iron
Fe
Pierrotite
Fe
1-n
S
Pyrite
FeS
2
Siderite
FeCO
3
Vivianite
Fe
3
P
2
O
8
.8H
2
O
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