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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 have been modified by heat, pressure and chemical processes, usually while buried deep below Earth's surface. Exposure to these extreme conditions has altered the mineralogy, texture and chemical composition of the rocks. There are two basic types of metamorphic rocks.Foliated metamorphic rocks such as gneiss, phyllite, schist, and slate have a layered or banded appearance that is produced by exposure to heat and directed pressure.etamorphic rocks have been modified by heat, pressure and chemical processes, usually while buried deep below Earth's surface. Exposure to these extreme conditions has altered the mineralogy, texture and chemical composition of the rocks. There are two basic types of metamorphic rocks.