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This project and its actions were made possible due to co-financing by the European Fund for the Integration of Third-Country Nationals EAL Nexus resource Rocks – metamorphic Subject(s): Geography, Science Age group(s): 8–-11, 12–14, 15–16 Topic: Types of rocks Licence information | This resource is free to use for educational purposes. ©British Council 2014 Source | This resource was originally developed from a resource on TES by j33ffa , Charlotte Hurley and Alison Fisher and has been adapted by EAL Nexus. Marble – metamorphic rock (rock changed by heat or pressure) Marble is made from limestone that has been heated to change it into marble. It is very heavy. It is often white and has coloured swirls and streaks. heavy light It is easy to polish and make the surface smooth and shiny. It is easy to carve because it is soft and doesn’t crumble when cut. Uses: • sculptures • buildings • statues • chopping boards • tiles Slate – metamorphic rock (rock changed by heat or pressure) Slate is made when mudstones called shale are changed by heat and pressure. Slate is blue, purple and grey in colour. Slate is waterproof. The crystals that the slate is made from are arranged in layers. It is easy to cut into thin sheets due to its layers. Uses: roof and floor tiles walls decorative gravel gravestones Gneiss – metamorphic rock (rock changed by heat or pressure) © Siim Sepp Gneiss is formed when sedimentary and igneous rocks are exposed to extreme temperatures and pressure. Gneiss often has alternating bands of colour that make interesting patterns. Gneiss has a coarse texture and is rough to the touch. © Michael C Rygel The bands are due to the various rocks it is made from. © Daniel CD The quartz in gneiss makes it sparkle. Uses: • building construction • decorative facing • gravestones • base for roads Soapstone – metamorphic rock (rock changed by heat or pressure) Soapstone is formed when sedimentary and igneous rocks are exposed to extreme temperatures and pressure. © Ra’ike Soapstone is grey, green, pink or white in colour. Soapstone is a soft stone and is easy to carve with a sharp tool such as a knife. Soapstone has a high resistance to heat and acid. Uses: bowls carved objects lining fireplaces jewellery It feels slippery like soap. Soapstone can be polished to a smooth finish. Marble Slate Gneiss Soapstone Marble • It is a metamorphic rock. • It is formed from limestone. • It can be many colours but is often white with streaks in it. • It is used for making statues and chopping boards. • It is heavy. Slate • • • • • It is a metamorphic rock. It is formed from shale. Its crystals are arranged in layers. It is used to make roof tiles. It can be blue, purple and grey. Gneiss • It is a metamorphic rock. • It is formed from sedimentary and igneous rocks. • It is formed under pressure. • It has alternating bands of colours. • It is rough to touch. • It sparkles. Soapstone • It is a metamorphic rock. • It is quite a soft rock. • It is used for making bowls and other objects with carvings. • It feels smooth and slippery. • It has a high resistance to heat.