This photograph shows a mold fossil. How is a mold fossil different from a cast fossil?
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A cast fossil is a depression in rock or soil made by the hard parts of organisms. A mold fossil is a cast fossil that becomes filled in with minerals in the shape of the cast.
A mold fossil is a depression in rock or soil made by the hard parts of organisms. A cast fossil is a mold fossil that becomes filled in with minerals in the shape of the mold.