Metamorphic rock is formed underground through a process that changes a rock's molecular structure due to pressure, heat and chemical reactions. A metamorphic rock forms from a parent rock called a protolith. Depending on conditions, a protolith can transform into any metamorphic rock. Because protoliths are capable of undergoing vast changes, identifying them is sometimes difficult for geologists.
Robin Wright: Net Worth: $65 Million: Date Of Birth: April 8, 1966: Died: December 7, 1955: Place Of Birth: Dallas, Texas, United States: Height: 5 ft 6 in (1.68 m) Profession: Actor, Model, Spokesperson, Businessperson, Singer, Film Producer: Education: William Howard Taft Charter High School, La Jolla High School: Nationality: United States of America: Spouse
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