Sandstone vs. Siltstone

A sedimentary rock formed by the consolidation and compaction of sand and held together by a natural cement, such as silica.

A fine-grained rock of consolidated silt.

A sedimentary rock produced by the consolidation and compaction of sand, cemented with clay etc.

A sedimentary rock whose composition is intermediate in grain size between the coarser sandstone and the finer mudstone.

A rock made of sand more or less firmly united. Common or siliceous sandstone consists mainly of quartz sand.

A fine-grained sandstone of consolidated silt

A sedimentary rock consisting of sand consolidated with some cement (clay or quartz etc.)