Product Overview
This rock formed at the bottom of a marine environment through the compaction of deceased organic matter in a clay or silt cement. Ideal for teaching students about rounding and sorting, as well as for identification & classification exercises, for studying fossils within whole rocks and sedimentary rocks.
While each specimen will vary slightly in shape, size and color, it will measure approximately 1" in length. Pack of 12. Each set is individually packaged, labeled & barcoded for easy identification and storage.
