[] 矿

[医] 矿



hematite
[ noun ]
the principal form of iron ore; consists of ferric oxide in crystalline form; occurs in a red earthy form
<noun.substance>




Hematite \Hem"a*tite\, n. [L. haematites, Gr. ? bloodlike, fr.
a"i^ma, a"i`matos, blood.] (Min.)
An important ore of iron, the sesquioxide, so called because
of the red color of the powder. It occurs in splendent
rhombohedral crystals, and in massive and earthy forms; --
the last called red ocher. Called also {specular iron},
{oligist iron}, {rhombohedral iron ore}, and {bloodstone}.
See {Brown hematite}, under {Brown}.