Siltstone Specimen, Siltstone Specimen is a clastic rock made up of small, nearly microscopic grains of silt., Pack of 12

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Siltstone is a type of clastic rock composed of small, nearly microscopic grains of silt. To be deposited and lithified, these clasts require an environment with slow-moving or still water. This distinctive characteristic makes siltstone particularly valuable for exercises involving depositional history.