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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 were once igneous or sedimentary rocks, but have been changed (metamorphosed) as a result of intense heat and/or pressure within the Earthâs crust.They are crystalline and often have a âsquashedâ (foliated or banded) texture.etamorphic Rocks. Metamorphic rocks were once igneous or sedimentary rocks, but have been changed (metamorphosed) as a result of intense heat and/or pressure within the Earthâs crust.