Sandstone vs. Siltstone

Sandstone and Siltstone Definitions
Sandstone
A sedimentary rock formed by the consolidation and compaction of sand and held together by a natural cement, such as silica.
Siltstone
A fine-grained rock of consolidated silt.
Sandstone
A sedimentary rock produced by the consolidation and compaction of sand, cemented with clay etc.
Siltstone
A sedimentary rock whose composition is intermediate in grain size between the coarser sandstone and the finer mudstone.
Sandstone
A rock made of sand more or less firmly united. Common or siliceous sandstone consists mainly of quartz sand.
Siltstone
A fine-grained sandstone of consolidated silt
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Sandstone
A sedimentary rock consisting of sand consolidated with some cement (clay or quartz etc.)