(of rocks) consisting of porphyry or containing large crystals in a fine groundmass of minerals
porphyritic详细解释
por.phy.rit.ic adj.（形容词）Of or containing porphyry.斑岩的：斑岩的，含斑岩的Containing relatively large isolated crystals in a mass of fine texture.在一团光滑的结构中含有相对量较大的独立石英的
