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siderite in British English
(ˈsaɪdəˌraɪt)
noun
1. Also called: chalybite
a pale yellow to brownish-black mineral consisting chiefly of iron carbonate in hexagonal crystalline form. It occurs mainly in ore veins and sedimentary rocks and is an important source of iron. Formula: FeCO3
2.
a meteorite consisting principally of metallic iron
Derived forms
sideritic (ˌsaɪdəˈrɪtɪk) adjective
siderite in American English
(ˈsɪdəˌraɪt)
noun
1.
a yellowish to brownish, semihard mineral, iron carbonate, FeCO3, that is a valuable ore of iron
2. Obsolete
a meteorite consisting chiefly of iron
Derived forms
sideritic (ˌsiderˈitic) (ˌsɪdərˈrɪtɪk) adjective
Word origin
Ger siderit < L siderites, lodestone < Gr sideritēs < sidēros, iron: Early ModE siderite, lodestone < LImage ofsiderite
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