Reddit reviews hand2mind White Streak Plates, 2 Inch x 2 Inch x 1/6 Inch (Pack of 10)

Include 10 streak plates measure 2" x 2" x 1/16"Used to identify rocks and minerals, unglazed streak plates retain the color of the mineralEasily identified rocks or minerals that streak very light colorsGreat classroom tool to teach streak testingGrowing Minds With Hands-On Learning - For over 50 years, hand2mind has encouraged hands-on learning and discovery, driving deeper understanding and helping children unlock their full potential