Category:Siderite

Sid"er*ite, n. Etym: [l. sideritis loadstone, gr.

1. (min.) (a) 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. (b) a meteorite consisting solely of metallic iron. (c) an indigo-blue variety of quartz. (d) formerly, magnetic iron ore, or loadstone.

2. (bot.)

Defn: any plant of the genus sideritis; ironwort.