花岗石是饰面石材的商品分类名称,并非岩石学定义。花岗石是天然石材,一般指具有装饰功能、结构致密、质地坚硬、性能稳定、可加工成所需形状的各种岩浆岩、火山岩和部分深变质岩类岩石。常见的岩石有花岗岩、凝灰岩、闪长岩、安山岩、辉长岩、辉绿岩、蛇纹岩、玄武岩、片麻岩等。花岗石主要用于建筑材料,常用 Granite is the name of the commodity classification of decorative stone, not the definition of petrology. Granite is a natural stone, generally refers to a decorative, compact structure, hard texture, stable performance, can be processed into the desired shape of the various magmatic rocks, volcanic rocks and some deep metamorphic rocks. Common rocks are granite, tuff, diorite, andesite, gabbro, diabase, serpentinite, basalt, gneiss and so on. Granite is mainly used for building materials, commonly used