1、 Natural mineral stone: It contains various natural crystal ore and fossil specimens. The best collection box for beginners, the best geological textbook for children. 2、 Beautiful crystal collection: Used for aura, meditation, chakra balance or ritual. 3、 Stone size: 12-16mm, made of different rough stones. Every stone is unique. 4、 This is a great gift for lovers, family and friends. 5、 Due to the natural state of the stone, the color and shape of each stone may be different. The picture is for your reference and you will receive a picture similar to the picture shown. Product description: 20 kinds of minerals original stone specimensMaterial: mixed crystalBox size: 13*12* 1.2cmSize: Each of about 10-20mmWeight: About 65GPackage content: 1 box of ore specimensNote: 1. Please allow 1~2 inch error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.