Clay minerals are hydrous aluminium phyllosilicates (e.g. kaolin, Al2Si2O5(OH)4), sometimes with variable amounts of iron, magnesium, alkali metals, alkaline...
26 KB (2,835 words) - 13:41, 1 May 2024
Clay is a type of fine-grained natural soil material containing clay minerals (hydrous aluminium phyllosilicates, e.g. kaolinite, Al2Si2O5(OH)4). Most...
28 KB (3,209 words) - 11:53, 21 July 2024
Kaolinite (redirect from China clay)
-lih-; also called kaolin) is a clay mineral, with the chemical composition: Al2Si2O5(OH)4. It is a layered silicate mineral, with one tetrahedral sheet of...
51 KB (5,559 words) - 12:30, 29 June 2024
Bentonite (redirect from Bentonite clay)
glass (obsidian, rhyolite, dacite) present in the ash into clay minerals. In the mineral alteration process, a large fraction (up to 40–50 wt.%) of amorphous...
38 KB (4,357 words) - 00:32, 2 April 2024
Chlorite group (redirect from Chlorite mineral)
pseudohexagonal structure Chlorite is considered a clay mineral. It is a nonswelling clay mineral, since water is not adsorbed in the interlayer spaces...
12 KB (1,250 words) - 20:15, 24 January 2024
Clay minerals are one of the more diverse minerals but all have a commonalty of crystal or grain sizes below 2 μm. Chemically, clays are defined by crystal...
13 KB (1,781 words) - 12:02, 2 May 2024
Polymer clay is a type of hardenable modeling clay based on the polymer polyvinyl chloride (PVC). It typically contains no clay minerals, but like mineral clay...
9 KB (1,143 words) - 22:35, 3 April 2024
In geology and mineralogy, a mineral or mineral species is, broadly speaking, a solid substance with a fairly well-defined chemical composition and a specific...
109 KB (13,007 words) - 16:14, 20 July 2024
red, or blue by the presence of impurities, such as iron oxides or clay minerals. Gypsum crystals can be transparent (most often selenite), translucent...
19 KB (1,933 words) - 10:17, 9 April 2024
Soil (redirect from Mineral soil)
by particles of clay and organic matter (colloids) The nutrients may be adsorbed on clay mineral surfaces, bound within clay minerals (absorbed), or bound...
204 KB (22,698 words) - 16:47, 10 July 2024