Porphyrexine Leucoporphyrindine Porphyry of Tyre: Phoenician Philosopher Porphyry: a Greek Scholar Porphyrio, Pomponius: a Latin grammarian and commentator on Horace Porphyrilic acid - De Herbario Berolinensi Notulae Porphyrilic acid (in Parts 4 and 5) - The Lichens of British Columbia Biatora porphyroplaca - Walter OBERMAYER
Porphyrexid(e) - Target materials - Deuteron polarization Porphyry: a well-known type of rock with many varieties,
and widely mentioned in works on geology and petrology / mineralogy