- a yellowish to brownish, semihard mineral, iron carbonate, FeCO, that is a valuable ore of iron
- Obs. a meteorite consisting chiefly of iron
Origin of sideriteGerman siderit ; from Classical Latin siderites, lodestone ; from Classical Greek siderit?s ; from sid?ros, iron: Early Modern English siderite, lodestone ; from Classical Latin
- An ore of iron, FeCO3.
- A meteorite consisting mainly of iron and nickel.
(countable and uncountable, plural siderites)
Latin sideritis (“lodestone”), from Ancient Greek [script?], of iron, from iron.