mine / mine Mines often take the form of a hole in the earth. Once earth materials are removed, sorted, refined, and reified into minerals they have commercial value. Things with this kind of value can be owned. Things that are mined can become mine. In Washington County, Utah, there are a number of gypsum mines. Among those mines is the Dwarf Bearclaw-Poppy,, endemic to the gypsum-rich soils of the area. Partly, due to this mining, it was one of the first federally listed endangered species in the U.S.