sedimentary

Fossiliferous Sandstone

Fossiliferous Arenite

Hardness varies (generally 6-7 if quartz-rich), pale brown to tan color, dull luster, granular texture, containing visible fossil shell fragments.

Identified August 29, 2026More sedimentary →

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Physical properties

Hardness varies (generally 6-7 if quartz-rich), pale brown to tan color, dull luster, granular texture, containing visible fossil shell fragments.

Formed in marine or coastal environments where sand and calcareous shells accumulated, were buried, and cemented over time.

Primarily valued by fossil collectors and educational institutions; larger deposits may be used as building stone or crushed aggregate.

The prominent white shapes are cross-sections of fossilized shells, likely gastropods or bivalves, preserved within the sandy matrix.

Identified by its gritty texture and the presence of embedded shell fossils; commonly found in sedimentary basins that were once shallow seas.

Fossiliferous Sedimentary Rock

Sedimentary limestone with invertebrate fossil imprint

Sandstone or Siltstone

Arenite (if sandstone)

Quartz pebble

Silicon dioxide (SiO2)

Sedimentary Sandstone

Arenite (Sedimentary Rock)

Generic Pebble / Rock Fragment

Lithic fragment / Weathered rock

Shale (or Mudstone/Siltstone)

Sedimentary Mudrock (SiO2, Al2O3 base with clay minerals)