from The American Heritage® Dictionary of the English Language, 5th Edition.
noun A black or blackish-red to brick-red mineral, essentially Fe2O3, the chief ore of iron.
from The Century Dictionary.
noun Native anhydrous iron sesquioxid, or redoxid of iron, Fe2O3.
noun An intaglio cut in hematite.
from the GNU version of the Collaborative International Dictionary of English.
noun (Min.) An important ore of iron, the sesquioxide, so called because of the red color of the powder. It occurs in splendent rhombohedral crystals, and in massive and earthy forms; -- the last called red ocher. Called also specular iron, oligist iron, rhombohedral iron ore, and bloodstone. See Brown hematite, under brown.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
noun An iron ore, mainly peroxide of iron, Fe2O3.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun the principal form of iron ore; consists of ferric oxide in crystalline form; occurs in a red earthy form
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
[Middle English emathite, ematites, from Latin haematītēs, from Greek (lithos) haimatītēs, bloodlike (stone), from haima, haimat-, blood.]
from Wiktionary, Creative Commons Attribution/Share-Alike License
From Middle French hematite, from Latin (lapis) haematites, from Ancient Greek αἱματίτης λίθος (haimatitēs lithos, "blood-red stone"), from αἷμα (haima, "blood").
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Examples
The key to determining if ultra violet light or oxygen formed the hematite is the crystalline structure of the hematite itself.
But the two things they have in common is they're landing in areas where we believe just based on the geological formations appear to have either been lake beds or could have sustained hematite, which is commonly found on earth-bound, you know, bottoms of lake beds, sediment and so forth.
Fully nine-tenths of the iron production of the world comes from the so-called hematite ores, meaning ores in which hematite is the dominant mineral, though most of them contain other iron minerals in smaller quantities.
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