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Sepiolite |
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sepiolite [′sē·pē·ə‚līt]
(mineralogy) Mg4(Si2O5)3(OH)2·6H2O A soft, lightweight, absorbent, white to light-gray or light-yellow clay mineral, found principally in Asia Minor; used for tobacco pipe bowls and ornamental carvings. Also known as meerschaum; sea-foam. Sepiolite a clay mineral of the silicate class having a complex chain-lattice structure. Its chemical composition is Mg4[Si6O15](OH)2·6H2O. Mg can be replaced by Fe2+. Fe3+, Ni, Al, and Cu (varieties: ferrisepiolite, aluminosepiolite, and nickelsepiolite). Sepiolite is thought to crystallize in the ortho-rhombic system, forming fibrous submicroscopic crystals. Its properties are analogous to those of palygorskite, and it also occurs as compact or spongy aggregates of very light weight (meerschaum). Sepiolite is formed in soils under conditions of an arid or semiarid climate, in sea and saline basins, and among sedimentary argillaceous carbonate rocks. It is also formed from the weathering of serpentine masses. Varieties of sepiolite rich in nickel are components of silicate nickel ores. Want to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit the webmaster's page for free fun content. |
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No references found | Exploitation of a vast deposit of sepiolite will generate an income of around $10m in forex a year by homing in on Europe's obsession with cats. In the rubber section, research concentrates on sepiolite, a magnesium silicate offering interesting reinforcing ability. In this sense, other kinds of fillers, such as carbonates (12), zinc oxide, silicates, clay, kaolin (13), baryte, sepiolite, precipitated silica, and polyester particles (14), have been used as reinforcements for elastomers. |
Sepiolite |
SEPHG SEPHIS SEPHO SEPI Sepia Sepia Sepia Sepia drawing sepia negative Sepia Officinalis Hemocyanin Sepiapterin Reductase sepias sepias Sepic Sepic SEPIC converter SEPICA Sepidaceous Sepiida Sepiida Sepiida Sepiidae Sepik Sepik Sepik River Sepik River Sepik Wetlands Management Initiative Sepiment SEPIN Sepioidea Sepiolite SepiostareSEPIRB SEPJ SEPK SEPL SEPLA SEPLN SEPLO SEPM sepmag SEPN SEPN1 SEPNA SEPNET Sepo SEPOC SEPOMEX Sepon SEPOPE SEPORT SEPOS Sepose Seposit Seposition | |||||||
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