Definition of Brown hematite. Meaning of Brown hematite. Synonyms of Brown hematite

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Definition of Brown hematite

brown hematite
Limonite Li"mon*ite (l[imac]"m[o^]n*[imac]t), n. [Gr. leimw`n any moist grassy place, a meadow : cf. F. limonite, G. limonit.] (Min.) Hydrous sesquioxide of iron, an important ore of iron, occurring in stalactitic, mammillary, or earthy forms, of a dark brown color, and yellowish brown powder. It includes bog iron. Also called brown hematite.
Brown hematite
Brown Brown, a. [Compar. Browner; superl. Brownest.] [OE. brun, broun, AS. br?n; akin to D. bruin, OHG. br?n, Icel. br?nn, Sw. brun, Dan. bruun, G. braun, Lith. brunas, Skr. babhru. [root]93, 253. Cf. Bruin, Beaver, Burnish, Brunette.] Of a dark color, of various shades between black and red or yellow. Cheeks brown as the oak leaves. --Longfellow. Brown Bess, the old regulation flintlock smoothbore musket, with bronzed barrel, formerly used in the British army. Brown bread (a) Dark colored bread; esp. a kind made of unbolted wheat flour, sometimes called in the United States Graham bread. ``He would mouth with a beggar though she smelt brown bread and garlic.' --Shak. (b) Dark colored bread made of rye meal and Indian meal, or of wheat and rye or Indian; rye and Indian bread. [U.S.] Brown coal, wood coal. See Lignite. Brown hematite or Brown iron ore (Min.), the hydrous iron oxide, limonite, which has a brown streak. See Limonite. Brown holland. See under Holland. Brown paper, dark colored paper, esp. coarse wrapping paper, made of unbleached materials. Brown spar (Min.), a ferruginous variety of dolomite, in part identical with ankerite. Brown stone. See Brownstone. Brown stout, a strong kind of porter or malt liquor. Brown study, a state of mental abstraction or serious reverie. --W. Irving.

Meaning of Brown hematite from wikipedia

- Hematite, also spelled as haematite, is a common iron oxide with a formula of Fe2O3 and is widespread in rocks and soils. Hematite forms in the shape of...
- as bog iron ore in meadows and marshes. In its brown form it is sometimes called brown hematite or brown iron ore. In its bright yellow form it is sometimes...
- modern pigment sold as "mummy brown" is composed of a mixture of kaolin, quartz, goethite and hematite, with the hematite and goethite (generally 60% of...
- them a dark brown. When natural sienna and umber pigments are heated, they are dehydrated and some of the limonite is transformed into hematite, giving them...
- dehydrates the iron oxides and changes them partially to the more reddish hematite. It is used for both oil and water color paint. The first recorded use...
- Deposits of specular and dark hematite were recorded west of Melilla, within 5–6 kilometres (3.1–3.7 mi) of the sea. Brown hematite was noted in the area of...
- The iron is usually found in the form of magnetite (Fe 3O 4, 72.4% Fe), hematite (Fe 2O 3, 69.9% Fe), goethite (FeO(OH), 62.9% Fe), limonite (FeO(OH)·n(H2O)...
- also occurs naturally as the mineral magnetite. As the mineral known as hematite, Fe2O3 is the main source of iron for the steel industry. Fe2O3 is readily...
- Corundum General Category Oxide mineralHematite group Formula (repeating unit) Aluminium oxide, Al 2O 3 Strunz cl****ification 4.CB.05 Dana cl****ification...
- as black metal. Red, brown and green colors are indicative of ferric oxide (hematite – reds), iron hydroxide (goethite – browns and limonite – yellow)...
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