Chalk Limestone Specimen (Sedimentary Rock), Pack of 12

Details

Here is the corrected text: Raw Limestone Chalk Specimen Set of 12 Samples, 1"Limestone is primarily composed of organic material, mainly calcium carbonate. The chalk variety consists of the shells of coccolithophores, small platy animals that stack together and powder easily. Large layers of chalk indicate a low-oxygen environment, likely ancient seafloor beds. This set is ideal for teaching students about rounding and sorting, as well as for identification and classification exercises. It provides an excellent example of chemically formed sedimentary rock. While each specimen will vary slightly in shape, size, and color, it will measure approximately 1" in length. Each is individually packaged, labeled, and barcoded for easy identification and storage. Selected and Processed by a Geologist: Each and every specimen is selected and hand-processed by an actual geologist, ensuring that each sample exhibits defining features. Rocks and minerals are sourced from a variety of locations around the world and are processed by hand in Victor, NY. Technical Support: Always feel free to reach out to our team of scientists and geologists for additional information or to assist you with any questions regarding our rock and mineral samples.