siderite

n. chalybite, ore of iron; meteorite containing large amounts of metallic minerals

Siderite is also the name of a type of iron meteorite. Siderite is a mineral composed of iron carbonate FeCO3. It takes its name from the Greek word sideros, “iron”. It is a valuable iron mineral, since it is 48% iron and contains no sulfur or phosphorus. Both magnesium and manganese commonly substitute for the iron.
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Noun
1. iron ore in the form of ferrous carbonate
(synonym) chalybite
(hypernym) iron ore
2. a meteorite consisting principally of nickel and iron
(hypernym) meteorite

n. siderite, chalybite, ore of iron; meteorite containing large amounts of metallic minerals

n. siderite