porphyries Definition

syenite, diorite, felsite, quartz, pegmatites, schists, hornfels, stockwork, diabase, covellite, ultrabasic, pyroxenite, stratiform, ankerite, dacite, adularia, lamprophyre, hornblende, breccia, sericite, alkalic, gabbro, gossan, eluvial, dunite, anomalism, mineralization, alunite, bornite, tetrahedrite, monzonite, granodiorite, stratigraphy, schistose, lineament, veinlet, palaeozoic, kaolinite, greisen, fuchsite, pyrophyllite, stibnite, arsenopyrite, norite, pyrargyrite, greywacke, argillaceous, phyllite, anastomosing, epidote, argillite, limestones, argentiferous, illite, andesite, anticlines, metallogenic, granites, actinolite, gneiss, graben, pelite, chalcocite, chrysocolla, veinlets, eudialyte, amphibolite, sulphides, dolomites, lithology, brecciation, clastic, albite, outcrops, diamondiferous, footwall, unconformity, haematite, manto, saprolite, siltstone, pentlandite, zechstein, argentite, galena, arenite, sphalerite, orogenic, chalcedony, silicification, biotite, carnotite, syncline, lodes, anticline, allanite, cherty, alluvium, chlorite, phlogopite,