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A reddish-black mineral consisting of ferric oxide. It is an important ore of iron.
- ‘Carriers include the iron oxides magnetite and hematite.’
- ‘This colour change occurs over only a few metres on the ground and is probably related to the reduction of hematite to magnetite.’
- ‘Like hematite, some goethite is pseudomorphic after a rhombohedral carbonate mineral.’
- ‘This was a steely gray specimen of the mineral hematite which, like many other stones, has a tradition of healing and additional magical influences.’
- ‘The assemblage present included quartz, chalcopyrite, pyrite, sphalerite, magnetite, and hematite.’
- ‘Impressive blades and masses of lustrous micaceous hematite occur in localized quartz veins, and reniform goethite is found in the walls.’
- ‘Minor hematite gives some specimens a red color.’
- ‘Some hematite replacement erases all traces of the original mineralogy.’
- ‘Both areas were selected because they have an ancient layer of hematite, an iron oxide mineral that on Earth almost always forms in an aqueous environment.’
- ‘The lakebed is believed to contain hematite, a crystalline iron compound usually formed in the presence of water.’
- ‘Most, if not all, of these mines have likely produced specimen-quality hematite, goethite, and perhaps other minerals.’
- ‘Those theories include that the haematite may have formed in a long-lasting lake or in a volcanic environment.’
- ‘The third potential way the hematite could have formed is by oxidation of a mineral called magnetite in basalt and lavas.’
- ‘The red sandstone is made up of quartz grains coated with hematite, an iron oxide mineral that gives the stone a red colour.’
- ‘The ironstone is locally represented by hematite matrix-supported vein quartz breccia.’
- ‘The fluids that precipitated the veins were a likely source for some of the iron that formed the hematite.’
- ‘Among the simple oxides, only anatase and hematite have been found to date.’
- ‘Some of the material contained micaceous masses of specular hematite associated with quartz, epidote, and numerous veinlets of calcite.’
- ‘Some samples have hematite in the calcite veins.’
- ‘Even if the hematite's origin remains ambiguous, trace amounts of other minerals could serve as additional markers of past water.’
Late Middle English: via Latin from Greek haimatitēs (lithos) ‘blood-like (stone)’, from haima, haimat- ‘blood’.
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