What are the similarities and differences between the characteristics of hard granite, sandstone and limestone?
Sandstone is composed of clastic and biogenic sediments. The gap is relatively large, and it is a relatively permeable layer.Limestone rock is also hard to produce cracks in depression, due to the special mineral composition, easy to form a dissolved pore cave, limestone water, oh, that is the key to the solution of karst cave...
The granite is granular or variegated, the particles are even and small. Locking layer
The granite is granular or variegated, the particles are even and small. The sandstone is composed of clastic and biogenic sediments. The gap is relatively large, and it is a relatively permeable layer. Limestone rock is also hard to produce cracks in depression, due to the special mineral composition, easy to form a dissolved pore cave, limestone water, oh, that is the key to the solution of karst cave.