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ironstone Iron-rich sedimentary rock. The source of the iron is primary and/or diagenetic (see DIAGENESIS), developed by a number of possible processes. These include: (a) replacement of carbonate particles by hematite, siderite, or chamosite; (b) diagenetic development of nodules, and more continuous horizons, of siderite within claystone sequences; (c) primary deposition of ooids from Fe/Alrich gels, and subsequent conversion to chamosite during shallow burial. See PLINTHITE. See also MINETTE; and CLINTON IRONSTONE.
ironstone •flagstone, ragstone •Blackstone, jackstone •sandstone • capstone • hearthstone •headstone • gemstone • whetstone •hailstone • gravestone •freestone, keystone •greenstone • Wheatstone •Tinseltown • ringtone • pitchstone •millstone • whinstone • siltstone •holystone • semitone •stepping stone • coping stone •baritone • acetone • dulcitone •tritone • drystone • milestone •limestone •grindstone, rhinestone •cobblestone • gallstone • brownstone •lodestone • soapstone • duotone •microtone • bluestone • tombstone •moonstone • touchstone •bloodstone, mudstone •sunstone • ironstone • undertone •monotone • cornerstone •Silverstone • overtone •kerbstone (US curbstone) •turnstone •birthstone • flavone • endzone •cortisone • ozone
i·ron·stone / ˈīərnˌstōn/ • n. 1. sedimentary rock containing a substantial proportion of iron compounds. 2. [usu. as adj.] a kind of dense, opaque stoneware.
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soapstone , soapstone •flagstone, ragstone •Blackstone, jackstone •sandstone • capstone • hearthstone •headstone • gemstone • whetstone •hailstone • gravestone •… Stone , stone / stōn/ • n. 1. the hard, solid, nonmetallic mineral matter of which rock is made, esp. as a building material: the houses are built of stone |… Moonstone , moonstone •flagstone, ragstone •Blackstone, jackstone •sandstone • capstone • hearthstone •headstone • gemstone • whetstone •hailstone • gravestone •… Hematite , hematite hematite (haematite, iron glance, kidney ore, red iron ore, specularite) Iron mineral, Fe2O3; one of the main ores for iron; sp. gr. 4.9–5.3… Heme , Iron deficiency anemia Definition Iron deficiency anemia refers to anemia that is caused by lower than normal levels of iron. This type of anemia is… Siderosis , siderosis Accumulation of the iron‐storage protein, haemosiderin, in liver, spleen, and bone marrow in cases of excessive red cell destruction and on…
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