siderite

siderite [sid-uh-rahyt] ExamplesWord Origin noun

1. Also called chalybite. a common mineral, iron carbonate, FeCO3, usually occurring in yellowish to deep-brown cleavable masses: a minor ore of iron.
2. a meteorite consisting almost entirely of metallic minerals.

Origin of siderite 1570–80, in sense “loadstone”; 1845–50 for def 1; sider- + -ite1; in obsolete sense, variant of siderites Latin sidērītēs Greek sidērī́tēs loadstoneRelated formssid·er·it·ic [sid-uh-rit-ik] /ˌsɪd əˈrɪt ɪk/, adjective Examples from the Web for siderite Historical Examples of siderite

This compound occurs in nature as siderite, and is a valuable ore.

An Elementary Study of Chemistry

William McPherson

Siderite, or spathic iron ore, FeCO3, crystallizes in the rhombohedral system and contains 48.28% of iron.

Encyclopaedia Britannica, 11th Edition, Volume 14, Slice 7

Various

Their principal iron mineral is hematite, although the English ores also contain considerable iron carbonate or siderite.

The Economic Aspect of Geology

C. K. Leith

The Bilbao ores consist mainly of siderite, which near the surface has altered to large bodies of oxide minerals.

The Economic Aspect of Geology

C. K. Leith

Quartzite (instead of limestone) is an unusual locus of replacement ores, and siderite is an unusual gangue.

The Economic Aspect of Geology

C. K. Leith

British Dictionary definitions for siderite siderite 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: FeCO 3
2. a meteorite consisting principally of metallic iron

Derived Formssideritic (ˌsaɪdəˈrɪtɪk), adjective