n. - A valuable ore of copper, containing copper, iron, and
sulphur; -- also called purple copper ore (or erubescite), in allusion
to the colors shown upon the slightly tarnished surface.
n. - A valuable ore of copper, containing copper, iron, and
sulphur; -- also called purple copper ore (or erubescite), in allusion
to the colors shown upon the slightly tarnished surface.