Specification package comes no less than 40 kinds crystal stones as random,such as amethyst,lapis lazuli,rose Quartz,tiger's eys ,green aventurine,red jasper,clear crystal,sodalite,golden rutilated quartz,green nephrite,blue apatite,amazontie,africa bloodstone,dragon bloodstone,unakite,prehnitr,rhodonite,ruby zoisite howlite,silicified wood stone ,moss agate,carnelian,citrine,dalmation jasper,fluorite,garnet,mahogany obsidian,flame yooperlite,cherry blossom agate and so on. Net Weight:2.5lb Diameter of tumble chips stone:0.2-0.5inches Diameter of rough stone:0.3-0.8inches Package Include 1.5lb tumble chips crystals(no less than 40types) 1lb natural raw crystals(no less than 25types) Benefits ?It will bring a lot of fun for learning mineral specimen kownleage ?Good for Health.Reduce electromagnetic radiation . ?minerals are help for maximizing willpower, emotional stability, obtaining inner peace and happiness ?great for tumbling,healing,massage,chakra balancing,positive energy,meditation.