The statement which states that Hematite may form, for instance, when igneous mafic rocks are exposed to oxygen in air or water is true
According to the given question, we are asked to state whether the statement which said that a hematite may form when igneous mafic rocks are exposed to oxygen in air or water is true or false.
As a result of this, we can see that a hematite is a chemical weathering which occurs when iron and oxygen combines to produce iron oxide which weather iron, using Fe203 which is mineral hematite.
Therefore, the correct answer is true
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