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''siderite'' ▫ᴱᴺ｜Definition｜1st｜20260605232103-00-⌔
siderite - Wiktionary, the free dictionary
English
Noun
siderite (countable and uncountable, plural siderites)
- (uncountable, mineralogy) A widespread brown mineral, FeCO, having the structure of calcite.
- ✤ Synonyms: iron(II) carbonate, ferrous carbonate
- ✤ Hypernym: iron ore
- (countable) An iron meteorite.
- An indigo blue variety of quartz.
- (obsolete) Magnetic iron ore; lodestone.
Etymology
From Ancient Greek σιδηρίτης (sidērítēs, “made of iron”), from Ancient Greek σίδηρος (sídēros, “iron”), or from Latin sideritis (“lodestone”), from Ancient Greek σιδηρῖτις (sidērîtis, “loadstone”). By surface analysis, sider- + -ite.
Printed 2026-06-28.
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