1870 W. Morris 180 Porphyry cliffs as red as blood.
1937 (Federal Writers' Project) 269 The Home of Moll Pitcher..stands in the shadow of this dull purple porphyry cliff.
2003 8 Mar. h1 Each morning you awaken to a new vista—the breathtaking fjords of Norway, the porphyry cliffs of Esterel.