Reduction 
The loss of an oxygen molecule from a mineral and which can make it become more stable. This can also commonly result in a less red soil, as ferric oxide is converted to ferrous oxide. This is the reverse of Oxidation.
Reduction
The loss of an oxygen molecule from a mineral and which can make it become more stable. This can also commonly result in a less red soil, as ferric oxide is converted to ferrous oxide. This is the reverse of Oxidation.