Biotite — is a common phyllosilicate mineral within the mica group, with the approximate chemical formula K(Mg, Fe)3AlSi3O10(F, OH)2. More generally, it refers to the dark mica series, primarily a solid solution series between the iron endmember annite,… … Wikipedia
Biotite — Bi o*tite, n. [From Biot, a French naturalist.] (Min.) Mica containing iron and magnesia, generally of a black or dark green color; a common constituent of crystalline rocks. See {Mica}. [1913 Webster] … The Collaborative International Dictionary of English
biotite — biotitic /buy euh tit ik/, adj. /buy euh tuyt /, n. a very common mineral of the mica group, occurring in black, dark brown, or dark green sheets and flakes: an important constituent of igneous and metamorphic rocks. [1860 65; named after J. B.… … Universalium
biotite — Mica Mi ca, n. [L. mica crumb, grain, particle; cf. F. mica.] (Min.) The name of a group of minerals characterized by highly perfect cleavage, so that they readily separate into very thin leaves, more or less elastic. They differ widely in… … The Collaborative International Dictionary of English
biotite — Mica Mi ca, n. [L. mica crumb, grain, particle; cf. F. mica.] (Min.) The name of a group of minerals characterized by highly perfect cleavage, so that they readily separate into very thin leaves, more or less elastic. They differ widely in… … The Collaborative International Dictionary of English
biotite — noun Etymology: German Biotit, from Jean B. Biot died 1862 French mathematician Date: 1862 a generally black or dark green form of mica that is a constituent of crystalline rocks and consists of a silicate of iron, magnesium, potassium, and… … New Collegiate Dictionary
biotite — noun /ˈbaɪəˌtaɪt/ A dark brown mica; it is a mixed aluminosilicate and fluoride of potassium, magnesium and iron … Wiktionary
lepidomelanas — statusas T sritis chemija apibrėžtis Mineralas. formulė KFe₃(OH,F)₂[AlSi₃O₁₀] atitikmenys: angl. iron biotite; lepidomelane rus. железистый биотит; лепидомелан ryšiai: sinonimas – geležingasis biotitas … Chemijos terminų aiškinamasis žodynas
lepidomelane — lepidomelanas statusas T sritis chemija apibrėžtis Mineralas. formulė KFe₃(OH,F)₂[AlSi₃O₁₀] atitikmenys: angl. iron biotite; lepidomelane rus. железистый биотит; лепидомелан ryšiai: sinonimas – geležingasis biotitas … Chemijos terminų aiškinamasis žodynas
железистый биотит — lepidomelanas statusas T sritis chemija apibrėžtis Mineralas. formulė KFe₃(OH,F)₂[AlSi₃O₁₀] atitikmenys: angl. iron biotite; lepidomelane rus. железистый биотит; лепидомелан ryšiai: sinonimas – geležingasis biotitas … Chemijos terminų aiškinamasis žodynas