Earth -- What are rocks and minerals: -- How rocks are formed -- Weathering and erosion -- Rocks on the seashore -- Igneous rocks -- Volcanic rocks -- Sedimentary rocks -- Limestone caves -- Metamorphic rocks -- Marble -- First flint tools -- Rocks as tools -- Pigments -- Building stones -- The story of coal -- Fossils -- Rocks from space -- Rock-forming minerals -- Crystals -- The growing crystal -- The properties of minerals -- Gemstones -- Decorative stones -- Lesser-known gems -- Ore minerals and metals -- Precious metals -- Cutting and polishing stones-- Collecting rocks and minerals -- Did you know? -- Rock or mineral? -- Find out more -- Glossary -- Index.