A cool mineral rock digging kit.Excavate your very own natural crystals.Build and add to your own rock collection, and learn some fun characteristics of different crystals.Contains one plaster block with eight natural crystals buried inside, one specially designed digging tool, one brush, one magnifier, one display case with cover and base card, pouch bag and detailed instructions with fun facts.Suitable for children aged five and over.The Science Museum has been turning science into a thrilling learning experience for many years, and have added their special seal of approval to a limited range of toys that they believe support their mission and will engage children in all aspects of science and learning.