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A Geoscience Digital Image Library

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TitleMagnetite
DescriptionMagnetite, Fe3O4 (iron oxide), minerals are reddish-black to brownish-black, opaque, with a metallic to submetallic luster. Magnetite and magnesioferrite are strongly magnetic, and were common components of lodestone. Most minerals of the magnetite series show octahedral crystal growth habit, with square or triangular sections, but they may also exist as anhedral granular forms. Magnetite may be associated with maghemite (Fe2O3) and hematite.
PhotographerDarla Sondrol. 2001-07-30.
CollectionUniversity of North Dakota Mineralogy Collection #449.
Key wordsMagnetite
Tech details1.15 MB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number1390