As hydration occurs, the silicates are transformed into silicate hydrates and calcium hydroxide, and the cement slowly forms a hardened paste. |
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The other two silicates are possibly an amphibole and a member of the smectite group. |
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Pulmonary disease due to talc, a group of hydrous magnesium silicates, is almost exclusively encountered after occupational exposure. |
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Moving beyond the Earth to the other terrestrial planets, we find that the rocks there are also dominantly silicates. |
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The strongest and most stable molecular structure is the three-dimensional tetrahedron, the configuration achieved with silicates. |
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Soluble silicates can be obtained by heating alkali metal carbonates and silica. |
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The most significant user is the glass industry, which uses sodium carbonate to decompose silicates for glass making. |
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Certain salts, such as the dichromates, borates, and silicates, act as inhibitors to the aqueous corrosion of zinc. |
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By sharing two oxygen atoms, silicates can form either cyclic or chain structures. |
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Those plants obtain various minerals and silicates from earth in their bodies during growth process. |
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Soil typically includes an organic plant layer, topsoil and layers of minerals, silicates, clay and parent materials. |
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Instead, silica is found in polymerized combinations with metals as silicates embedded in geologic rock formations, such as quartz. |
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Below this threshold, minerals occur as silicates, in that they are chemically bonded to silica. |
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If the impact object was a stony carbonaceous chondrite there would be silicates all over the impact site. |
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Irons and stony-irons are dense, with up to equal amounts of silicates and iron, and are often irregular in shape. |
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There are two types of silicate minerals, the ferromagnesian and the nonferromagnesian silicates. |
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These aggregates are perched on a matrix of fine-grained garnet densely intergrown with other manganese silicates. |
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The condensation of iron metal alloy and magnesian silicates divides the refractory elements from the moderately volatile elements. |
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The major types of silicates causing asbestos-related disease are chrysotile, amosite, and crocidolite, with the latter being the most pathogenic. |
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With the exception of quartz and the feldspars, few common rock-forming silicates are available in fine, collectible specimens on a regular basis. |
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Also, the inevitable non-metallic inclusions, i.e. oxides, silicates, sulphides, are broken up, some deformed, and distributed throughout the steel in a more uniform manner. |
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Since silicates are not flammable and only melt at very high temperatures, asbestos fibers have been used to make flame-retardant fabrics and composite materials. |
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The layer silicates can be classified into various groups, according to their chemical composition and the layer structure of their crystal lattice. |
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These ashes would rapidly hydrate and devitrify, yielding highly soluble sodium silicates that produce silica gels, clinoptilolite, and montmorillonite. |
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The fine sand and silt size fraction comprised decayed plant material, pollen, occasional chitin fragments, clay aggregates, diatoms and fine silicates. |
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Examples of silicates include quartz, orthoclase, and olivine. |
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In shear zones, after penetration of carbon oxide rich hydrothermal solutions, the Serpentinized Magnesium silicates create Magnesium carbonate. |
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Roasting pollucite with calcium carbonate and calcium chloride yields insoluble calcium silicates and soluble caesium chloride. |
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Many inorganic substances are insoluble too, including most metal oxides, sulfides, and silicates. |
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Some examples of fillers are clays, silicates, cellulose microfibrils, cellulose whiskers, and carbon nanotubes. |
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Iron made from bog ore will often contain residual silicates, which can form a glassy coating that imparts some resistance to rusting. |
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Early formation of authigenic silicates in the Kinnekulle Bed has been suggested by Kupli et al. |
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The inclusions, too, are a function of the steel-making, and include oxides, silicates, aluminates, and sulfides. |
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The mineralisation occurs as oxidised copper in the form of carbonates and silicates, and as sulphides in the form of chalcocite and chalcopyrite. |
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Unlike silicates, says Arrhenius, hydrous iron and manganeseminerals grow and dissolve readily in response to small changes in acidity or electric potential. |
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Apparently in this case, the hydration type is mostly pozzolanic, but after 28 days of curing the process is hindered due to the lack of silicates and aluminates. |
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As the original concentrate was not pure lead sulfide, roasting yields lead oxide and a mixture of sulfates and silicates of lead and other metals contained in the ore. |
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The aluminium, iron, and magnesium oxides are present as a flux allowing the calcium silicates to form at a lower temperature, and contribute little to the strength. |
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Zeolites have been considered as the hydrous silicates of scaffolds. |
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The dominant matrix minerals in oil shale and marlstone include silicates. |
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Many heavy metal ions can be precipitated out of aqueous solution as insoluble silicates by the addition of a ten per cent aqueous solution of sodium metasilicate. |
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