A freshly broken rock shows differential chemical weathering (probably mostly oxidation) progressing inward. This piece of sandstone was found in glacial drift near Angelica, New York
Source: english wikipedia, original upload 17 July 2005 by en:User:Pollinator
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A freshly broken rock shows differential chemical weathering (probably mostly oxidation) progressing inward. This piece of sandstone was found in glacial drift near Angelica, New York Source: english wikipedia, original upload 17 July 2005 by [[:en:User: