magnetite

/ˈmag-nə-ˌtīt/ (ame, mw)

magnetite — noun

1. a black mineral made of iron and oxygen that is a major source of iron and can a

1.名詞C2
釋義

a black mineral made of iron and oxygen that is a major source of iron and can attract a magnet naturally

例句

The lab found magnetite in the black sand near the shore.

find magnetite in a natural material sample

A magnet pulled tiny bits of magnetite from the soil sample.

magnetite shown as naturally attracted to a magnet

文法句型

contain magnetite

rich in magnetite

magnetite ore

用法筆記

Usually treated as a substance name in geology and mining, so writers more often say that rock, sand, or ore contains magnetite than talk about 'a magnetite'. If the magnetic behavior of a natural piece matters, speakers may instead call that piece lodestone.

常見錯誤

❌This beach sand has many magnetites.
✅This beach sand has a lot of magnetite.
💡As a mineral name, magnetite is usually used as an uncountable substance noun.