Mineral Identification Kit Rock Samples for Studying Geology and Earth Science Set of 20

Set also includes a magnifier streak plate magnet iron nail index (sort) cards sorting needle and a lab manual Samples are 1" to 2" in size and are individual marked with numbers for easy identification Manufactured by Geosciences Industries. Sorting (index) cards use a process of elimination to assist in identification Samples are packaged in a plastic tray Mineral collection contains 20 samples