porphyritic
Related Words
aphaniticphenocrystgroundmassmatrixigneousvolcanicplutonicmagmalavacrystalcrystallizationcoolingtexturegranitebasaltandesiterhyolitedioritegabbrotrachyteporphyrymineralfeldsparquartzolivinepyroxeneamphibolemicabiotitemuscoviteplagioclaseorthoclaseglassvitreousphaneriticglassyvesicularpyroclasticintrusionextrusiveintrusivedykesillbatholithlaccolithmagmatismpetrologygeologylithologymineralogycrystalliteeuhedralsubhedralanhedralsolidificationmelteutecticperitecticfractionationdifferentiationviscosityvolcanismcrustmantlemagma chamber