manganese silicate

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• manganese processing — Introduction       preparation of the ore for use in various products.       Manganese (Mn) is a hard, silvery white metal with a melting point of 1,244° C (2,271° F). Ordinarily too brittle to be of structural value itself, it is an essential… …   Universalium

• silicate mineral — Any of a large group of silicon oxygen compounds that are widely distributed throughout much of the solar system. The silicates make up about 95% of the Earth s crust and upper mantle, occurring as the major constituents of most igneous rocks and …   Universalium

• manganese epidote — Epidote Ep i*dote, n. [Gr. ? to give besides; ? over + ? to give: cf. F. [ e]pidote. So named from the enlargement of the base of the primary, in some of the secondary forms.] (Min.) A mineral, commonly of a yellowish green (pistachio) color,… …   The Collaborative International Dictionary of English

• Pyroxene — Figure 1: A sample of pyroxenite, a rock consisting mostly of pyroxene minerals. The pyroxenes are a group of important rock forming inosilicate minerals found in many igneous and metamorphic rocks. They share a common structure consisting of… …   Wikipedia

• olivine — olivinic /ol euh vin ik/, olivinitic /ol euh vi nit ik/, adj. /ol euh veen , ol euh veen /, n. Mineral. any of a group of magnesium iron silicates, (Mg,Fe)2SiO4, occurring in olive green to gray green masses as an important constituent of basic… …   Universalium

• rhodonite — /rohd n uyt /, n. a mineral, manganese metasilicate, MnSiO3, occurring usually in rose red masses, sometimes used as an ornamental stone; manganese spar. [1815 25; < G Rhodonit < Gk rhódon ROSE1 + G it ITE1] * * * Silicate mineral that occurs in… …   Universalium

• tephroite — ˈtefrōˌīt noun ( s) Etymology: German tephroit, from Greek tephros ash gray + German it ite : a mineral Mn2SiO4 that consists of Manganese silicate and is isomorphous with olivine * * * /tef roh uyt /, n. a mineral, silicate of manganese, Mn2SiO4 …   Useful english dictionary

• Rhodonite — Catégorie IX : silicates[1] Rhodonite gemme sur galène Australie …   Wikipédia en Français

• tephroite — /tef roh uyt /, n. a mineral, silicate of manganese, Mn2SiO4, occurring in orthorhombic crystals. [1865 70; < G Tephroit < Gk tephró(s) ash gray + G it ITE1] * * * ▪ mineral       olivine mineral found only in iron manganese ore deposits and… …   Universalium

• Cymrite — General Category Phyllosilicate Chemical formula BaAl2Si2(O,OH)8·(H2O) Crystal symmetry Monoclinic Unit cell a …   Wikipedia

• Rhodochrosite — from Sweet Home Mine, Alma, Colorado, USA General Category Mineral species …   Wikipedia