12 PACK || Includes twelve streak plates. Great for class activities GREAT FOR GEOLOGY CLASSROOMS || Used to determine a mineral’s color in powder form, or to identify the mineral content of a rock. Great for geology and earth science classrooms REUSABLE || Streak plates can be cleaned and reused again and again PORCELAIN || Each plate is made of off-black, unglazed porcelain UNIFORM SIZE || Streak plates measure 1.9" long, 1.9" wide, and 0.2" high

Pack of 12 Streak Plates for use in mineral identification. By scraping a specimen across the unglazed, porcelain plates, students learn to identify minerals by examining the powder color of the streak. Great for geology classrooms, earth science students and field geologists. Each plate measures 1.9" long and wide and is 0.2" in height.