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.
Treat your drinking well water if necessary. 1  If your well water needs to be treated, there are several organizations that can help you pick the best treatment: 2  National Sanitation Foundation. 3  Water Quality Association. 4  The National Ground Water Association (site specifically for well owners)