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The 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 The first flint tools Rocks as tools Pigments Building stones The Story of coal Fossils Rocks from spac Rock-forming minerals Crystals The growing crystal The properties of minerals Crystals The growing crystal The properties of minerals Gemstones Decorative stones Lesser-known gems Ore minerals and metals Precious metals Cutting and polishing Collecting rocks and menerals Index |