siderite

1. n. 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. Source: opted

2. n. A meteorite consisting solely of metallic iron. Source: opted

3. n. An indigo-blue variety of quartz. Source: opted

4. n. Formerly, magnetic iron ore, or loadstone. Source: opted

5. n. Any plant of the genus Sideritis; ironwort. Source: opted

6. n. iron ore in the form of ferrous carbonate Source: wordnet

7. n. a meteorite consisting principally of nickel and iron Source: wordnet

8. 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.) Any plant of the genus Sideritis; ironwort. Source: webster

9. n. iron ore in the form of ferrous carbonate n. a meteorite consisting principally of nickel and iron Source: ecdict

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