Granite stone blocks were taken at different locations in the rock rock, rock to rock in different locations due to the role of various substances undergo strength of different rocks occurred after diagenesis role varies. To weathering, for example, in the edge region or surface rock rock weathering suffered the strongest effect, which is serious weathering of rocks, so that the structure becomes loose, this stone grinding and polishing process is relatively difficult, processed into finished stone color is not bright, and the flexural, compressive strength is low;
In vivo or in the center of rock weathering weak rock, rock mineral little change, rock fresh, dense structure, bright colors. Generally speaking, according to the same kind of granite stone stone blocks can be divided into several grade levels, such as peach red blocks under different sources into A, B, C and so their different levels.