Magnetite has been important in understanding the conditions under which rocks form. Magnetite reacts with oxygen to produce hematite, and the mineral pair forms a buffer that can control oxygen fugacity. Commonly, igneous rocks contain solid solutions of both titanomagnetite and hemoilmenite or titanohematite.
Definition of relief well. : a vertical drain used for the drainage of a deep pervious stratum to relieve waterlogging of the surface soil.
What is Relief Pitcher? This is a baseball term which refers to a substitute pitcher. A substitute pitcher is called a relief pitcher because they are coming into the came to relieve the current pitcher of their duties. A relief pitcher differs from a starting pitcher in that a starting pitcher will not come in mid-game, while that is the express purpose of a relief pitcher.