Silicic

Silicic

Silicic is a term used to describe magma or igneous rock rich in silica. The amount of silica that constitutes a silicic rock is usually put at at least 65 percent. Granite and rhyolite are typical silicic rocks.

Silicic is the group of silicate magmas which will eventually crystallise a relatively small proportion of ferromagnesian silicates, such as amphibole, pyroxene, and biotite. The main constituents of a silicic rock will be minerals rich in silica-minerals, like silicic Feldspar or even free silica as Quartz.

See also

*Felsic
*Mafic


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  • silicic — SILÍCIC adj. (În sintagma) Acid silicic = acid oxigenat al siliciului. – Din fr. [acide] silicique. Trimis de LauraGellner, 23.07.2004. Sursa: DEX 98  silícic adj. m., pl. silícici Trimis de siveco, 10.08.2004. Sursa: Dicţionar ortografic … …   Dicționar Român

  • Silicic — Si*lic ic, a. [L. silex, silicis, a flint: cf. F. silicique.] (Chem.) Pertaining to, derived from, or resembling, silica; specifically, designating compounds of silicon; as, silicic acid. [1913 Webster] {Silicic acid} (Chem.), an amorphous… …   The Collaborative International Dictionary of English

  • silicic — [sə lis′ik] adj. [ SILIC(A) + IC] of, like, or derived from silica or silicon …   English World dictionary

  • silicic — sə̇ˈlisik, sēk adjective Etymology: silica or silicium + ic : of, relating to, or derived from silica or silicon highly silicic rocks, such as normal granite A.M.Bateman …   Useful english dictionary

  • Silicic acid — IUPAC name Silicic acid …   Wikipedia

  • Silicic acid — Silicic Si*lic ic, a. [L. silex, silicis, a flint: cf. F. silicique.] (Chem.) Pertaining to, derived from, or resembling, silica; specifically, designating compounds of silicon; as, silicic acid. [1913 Webster] {Silicic acid} (Chem.), an… …   The Collaborative International Dictionary of English

  • silicic acid — n. 1. any of several jellylike masses, SiO2·n H2O, precipitated by acidifying sodium silicate solution 2. any of several hypothetical acids of which the different mineral silicates may be regarded as salts …   English World dictionary

  • silicic acid — Chem. any of certain amorphous gelatinous masses, formed when alkaline silicates are treated with acids, which dissociate readily into silica and water. [1810 20] * * * ▪ chemical compound       a compound of silicon, oxygen, and hydrogen,… …   Universalium

  • silicic acid — Obtained in water as a colloid by treating silicates; precipitated s. is silica gel. * * * silicic acid n any of various weakly acid substances obtained as gelatinous masses by treating silicates with acids * * * si·lic·ic ac·id (sĭ likґik)… …   Medical dictionary

  • silicic acids — silikato rūgštys statusas T sritis chemija apibrėžtis 1. ↑ metasilikato rūgštis; 2. ↑ ortosilikato rūgštis; 3. ↑ polimetasilikato rūgštis; 4. ↑ poliortosilikato rūgštis; 5. Kompleksinė rūgštis, turinti centrinį Si atomą. atitikmenys: angl.… …   Chemijos terminų aiškinamasis žodynas

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