A wide variety of geology and earth science-related kits, tools, and supplies for classroom use. Products include rock/mineral specimens, rock picks, Moh's hardness kits, educational models, streak plates, rock/mineral test kits, and rock tumblers.
For use as example of sedimentary rock formed chemically. EISCO Chalk Limestone Specimen (Sedimentary Rock) is made up of organic material, mostly calcium carbonate.