Also a perfect gift for the crystal lover or mineral collectioner, a ideal addition to a collection, Decoration,display, curios cabinet,or crystal grid. Different shapes - each stone is unique and may vary in size and shape. Small and easy to carry, you can also put it in your pocket or on your palm when you travel. Teaching supplies - Crystalline ores can be used as teaching materials at low cost. Crystal ore allows students to practice carving and polishing in the classroom to improve their skills. Wide range of applications - crystal ore for home decoration, research, living room, kitchen, decorative collection, geology science teaching.