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Talc-a metamorphic mineral is used as a lubricant. Serpentine is used for carving. Corundum, another metamorphic mineral, is used for abrasives. Kyanite and its polymorphs-for ceramics. Graphite-pencils. Many economic deposits of gold, copper, tungsten and iron occur in metamorphic rocks.arble is a metamorphic rock that is used to make floor tiles, counter tops and it is carved int â¦ o statues and was used extensively in the building of the Roman Colosseum and other historic buildings.
Rocks and the Rock Cycle. 1  Metamorphic Rocks-Metamorphic rocks are formed by great heat and pressure. 2  They are generally found inside the Earth's crust where there is enough heat and pressure to form the rocks. 3  Metamorphic rocks are often made from other types of rock. They are generally found inside the Earth's crust where there is enough heat and pressure to form the rocks. 2  Metamorphic rocks are often made from other types of rock. 3  For example, shale, a sedimentary rock, can be changed, or metamorphosed, into a metamorphic rock such as slate or gneiss.