- Carbonate of iron, an important ore of iron occuring
generally in cleavable masses, but also in rhombohedral crystals. It is
of a light yellowish brown color. Called also sparry iron, spathic
iron. - A meteorite consisting solely of metallic iron. - An indigo-blue variety of quartz. - Formerly, magnetic iron ore, or loadstone. - Any plant of the genus Sideritis; ironwort.
Definition
[ n.]