siderite

[sid-uh-rahyt]

noun

Also called chalybite. a common mineral, iron carbonate, FeCO3, usually occurring in yellowish to deep-brown cleavable masses: a minor ore of iron.

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 loadstone

Related formssid·er·it·ic

[sid-uh-rit-ik] /ˌsɪd əˈrɪt ɪk/, adjective

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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
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
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
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

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

a meteorite consisting principally of metallic iron

Derived Formssideritic (ˌsaɪdəˈrɪtɪk), adjective

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