Hematite is a variety of iron oxide (Fe2O3), a mineral mined as one of the main ores of iron. It is also used industrially as a red pigment in paint,

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Hematite is a variety of iron oxide (Fe2O3), a mineral mined as one of the main ores of iron. It is also used industrially as a red pigment in paint, and in polishing compounds. This specimen has a bulbous appearance, referred to as botryoidal (grapelike), which in mining practice is referred to as kidney ore. In nature its surface is always coloured a dull yellowish to red-brown; the glossy black surface here seen is thanks to polishing. Specimen is from Taouz in Morocco, actual width 21 cm.

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Size: 5616px × 3744px
Photo credit: © DIRK WIERSMA/SCIENCE PHOTO LIBRARY / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: botryoidal, brown, bulbous, earth, glossy, grapelike, hematite, industrial, industry, iron, kidney, mineral, mineralogy, mining, morocco, ore, polished, polishing, red, science, taouz