Contains 30 different minerals (5 of each sample) to be used in conjunction with the taxonomic key contained in the lab manual. Kids test for hardness, specific gravity, color, streak, and cleavage. Includes a Mineral Testing Kit that consists of a streak plate, glass plate hand lens, magnet, acid bottle, nail, penny, and hardness scale. Grades 7-12. Information on how to place your order by fax or by telephone. Product Number AM2770