nitrate mineral

nitrate mineral

[′nī‚trāt ‚min·rəl]
(mineralogy)
Any of several generally rare minerals characterized by a fundamental ionic structure of NO3-; examples are soda niter, niter, and nitrocalcite.
References in periodicals archive ?
Farmers eventually learned to increase the levels of reactive nitrogen in their soil using plants that have nitrogen-fixing bacterial symbionts, but their resources were limited: at the beginning of the twentieth century they could rotate with nitrogen-fixing crops such as legumes, or add naturally occurring fertilizers such as manure, guano, and nitrate mineral deposits mined in Chile.