Metamorphic reaction

A metamorphic reaction is a chemical reaction that takes place during the geological process of metamorphism wherein one assemblage of minerals is transformed into a second assemblage which is stable under the new temperature/pressure conditions resulting in the final stable state of the observed metamorphic rock.[1]

Examples include the production of talc under varied metamorphic conditions:

serpentine + carbon dioxide → talc + magnesite + water
chlorite + quartz → kyanite + talc + water

Polymorphic Transformations

See also
  • Index mineral

Notes
  1. "Types of Metamorphic Reactions". Tulane University. Retrieved 2007-06-22.
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