SIDERITE
siderite
(noun) a meteorite consisting principally of nickel and iron
siderite, chalybite
(noun) iron ore in the form of ferrous carbonate
Source: WordNet® 3.1
Etymology
Noun
siderite (countable and uncountable, plural siderites)
(uncountable, mineral) a widespread brown mineral, FeCO3, having the structure of calcite
(countable) an iron meteorite
An indigo-blue variety of quartz.
(obsolete) magnetic iron ore; lodestone
Synonyms
• chalybite
• sparry iron
• spathic iron
Source: Wiktionary
Sid"er*ite, n. Etym: [L. sideritis loadstone, Gr.
1. (Min.)
(a) Carbonate of iron, an important ore of iron occuring generally in
cleavable masses, but also in rhombohedral crystals. It is of a light
yellowish brown color. Called also sparry iron, spathic iron.
(b) A meteorite consisting solely of metallic iron.
(c) An indigo-blue variety of quartz.
(d) Formerly, magnetic iron ore, or loadstone.
2. (Bot.)
Definition: Any plant of the genus Sideritis; ironwort.
Source: Webster’s Unabridged Dictionary 1913 Edition