Notes

32 pages : colour illustrations Contents include: Crystals -- From the deep -- Solutions -- Cave crystals -- Crystal shape -- Crystal colour and strength -- Finding Earth's crystals -- Mining crystals -- Important crystals -- Precious stones -- Crystals on demand -- Crystals in crisis -- Rock your world! Summary: Find out about the different types of crystals on the Earth. Learn how they are formed and how we use them - for jewellery to making solar cells. Discover the incredible clues crystals give us about the Earth's past Earth rocks