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

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Clastic sedimentary rock made up of fine silt particlesFor use in identifying depositional environmentsCorrelates well to Next Generation Science Standards Evidence StatementsClast size is indicative of low-energy environmentFor clasts such as these to be deposited and lithified, they must be in environment with slowly moving or still water