mineral
noun[Low L. minera, a matrix or vein of metals, whence mineralia; all from mine.]
A body destitute of organization, and which naturally exists within the earth or at its surface. Minerals were formerly divided into salts, earths, inflammables and ores; a division which serves for a general distribution, but a more scientific arrangement into classes, orders, genera, species, subspecies and varieties, has been adopted to meet the more precise views of modern mineralogists.