what is a slit stone rock
Siltstone is a sedimentary rock which has a grain size in the silt range, finer than sandstone and coarser than claystones.Siltstone is a clastic sedimentary rock.iltstones may contain concretions. Unless the siltstone is fairly shaly, stratification is likely to be obscure and it tends to weather at oblique angles unrelated to bedding. Mudstone or shale are rocks that contain mud, which is material that has a range of silt and clay.