Classification Of Granite

Due to the complex formation of granite, the formation conditions are diverse, so there are many types and various classification methods.

According to the types of minerals contained-divided into black granite, muscovite granite, hornblende granite, two mica granite, etc.;

According to the structure and structure-can be divided into fine-grained granite, medium-grained granite, coarse-grained granite, porphyritic granite, porphyritic granite, crystal cave granite and gneissic granite, etc.;

According to the accessory minerals, it can be divided into cassiterite-containing granite, niobite-containing granite, beryllium-containing granite, lepidolite granite, tourmaline granite, etc. Common self-metamorphism such as feldsparization, fritization, and tourmaline.