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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.
Metamorphic Rocks. Metamorphic rocks are pre-existing rocks that have been changed by exposure to unusual temperatures and/or pressures. The pre-existing rocks, called protoliths, may be igneous, sedimentary or other metamorphic rocks.fter metamorphosis, these new rocks typically contain distinctive new minerals, reoriented into characteristic patterns. Metamorphic rocks are very common in the Jacksonville area and throughout the entire Appalachian mountain chain, so a knowledge of these rocks is essential. A. Formation of Metamorphic rocks.