出典:Wiktionary
出典:『Wiktionary』 (2025/04/03 20:34 UTC 版)
From Middle French hematite, from Latin (lapis) haematites, from Ancient Greek αἱματίτης (haimatítēs) λίθος (líthos, “blood-red stone”), from αἷμα (haîma, “blood”). By surface analysis, hemat- + -ite.
hematite (usually uncountable, plural hematites)
出典:Wikipedia
出典:『Wikipedia』 (2011/05/04 01:23 UTC 版)
Hematite, also spelled as haematite, is the mineral form of iron(III) oxide (Fe2O3), one of several iron oxides. Hematite crystallizes in the rhombohedral system, and it has the same crystal structure as ilmenite and corundum. Hematite and ilmenite form a complete solid solution at temperatures above 950°C.
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