This raw chert specimen is a single hand-processed sample measuring approximately 1 inch in length and individually packaged in a transparent labeled and barcoded bag. Sometimes referred to as flint, chert is a silica-rich sedimentary rock that demonstrates the various forms of quartz, hardness, crystal habit, and fracture. Selected and processed by a geologist in Victor, NY. Ideal for geology and earth science classrooms teaching rock identification, sedimentary processes, and the properties of silica-rich minerals. Specimens may vary slightly in shape, size, and color.