Eyewitness 3-D Eye: Rocks & Minerals by Dorling Kindersley
Transforming the natural world, this book enables you to see details of minerals hidden from the naked eye. It is one of a series of books which makes objects instantly visible through a special built-in mirror viewer to reveal such intricacies as the scales of a butterfly wing, the trip-wires that trigger a fly-trap and the way in which a snake delivers its venomous poison.