The gold-like mineral in the metamorphic rock pictured below is known as pyrite. When pyrite is exposed to air and water it can react to form sulfate and an acid. The acid can discolor and eat away the

The gold-like mineral in the metamorphic rock pictured below is known as pyrite. When pyrite is exposed to air and water it can react

to form sulfate and an acid. The acid can discolor and eat away the surrounding rock.
Image courtesy of David Usher, USGS
Pyrite breaks down rocks in which of the following processes?
A
deposition
B. physical weathering
C.
erosion
D.
chemical weathering

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