EXAMPLES | WORD ORIGIN noun a very common black iron oxide mineral, Fe 3O 4, that is strongly attracted by magnets: an important iron ore. Origin of magnetite 1850–55; magnet
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for magnetite Historical Examples of magnetite
There is some sericite present, also
magnetite, resulting from the decomposition of the biotite.
The minerals at contact are quartz, biotite,
magnetite and hornblende.
It is also somewhat stained by the decomposition of the
Most of the ores obtained in Pennsylvania and New York are
The usual association with apatite and
magnetite crystals is noted. British Dictionary definitions for magnetite noun a black magnetic mineral, found in igneous and metamorphic rocks and as a separate deposit. It is a source of iron. Composition: iron oxide. Formula: Fe 3 O 4 . Crystal structure: cubic Derived Forms magnetitic ( ˌmæɡnɪˈtɪtɪk), adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for magnetite n.
magnetic iron ore, 1840, from German
magnetit; see magnet + -ite (2).
Online Etymology Dictionary, © 2010 Douglas Harper
A brown to black mineral that is strongly magnetic. It crystallizes in the cubic system and commonly occurs as small octahedrons. Magnetite occurs in many different types of rock and is an important source of iron. Chemical formula: Fe 3O 4.
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