| hematite | <chemical> An important ore of iron, the sesquioxide, so called because of the red colour of the powder. It occurs in splendent rhombohedral crystals, and in massive and earthy forms; the last called red ocher. Synonym: specular iron, oligist iron, rhombohedral iron ore, and bloodstone. See Brown hematite, under Brown. Origin: L. Haematites, Gr. Bloodlike, fr. A"i^ma, a"imatos, blood. Source: Websters Dictionary (01 Mar 1998) |
|---|