Feldspar — is the name of a group of rock forming minerals which make up as much as 60% of the Earth s crust.Feldspar. [http://www.ima na.org/about industrial minerals/feldspar.asp What is Feldspar?] Industrial Minerals Association. Retrieved on July 18… … Wikipedia
feldspar — /feld spahr , fel /, n. any of a group of minerals, principally aluminosilicates of potassium, sodium, and calcium, characterized by two cleavages at nearly right angles: one of the most important constituents of igneous rocks. Also, felspar.… … Universalium
feldspar — noun Etymology: modification of obsolete German Feldspath (now Feldspat), from German Feld field + obsolete German Spath (now Spat) spar Date: 1772 any of a group of crystalline minerals that consist of aluminum silicates with either potassium,… … New Collegiate Dictionary
feldspar — noun Any of a large group of rock forming minerals that, together, make up about 60% of the earths outer crust. The feldspars are all aluminum silicates of the alkali metals sodium, potassium, calcium and barium. Feldspars are the principal… … Wiktionary
Celsian — is an uncommon feldspar mineral, barium aluminosilicate, BaAl2Si2O8. The mineral occurs in contact metamorphic rocks with significant barium content. Its crystal system is monoclinic, and it is white, yellow, or transparent in appearance. In pure … Wikipedia
Celsiane — Catégorie IX : silicates[1] Celsiane (Plage grise) Mariposa County, Californie … Wikipédia en Français
celsian — celzianas statusas T sritis chemija apibrėžtis Mineralas. formulė Ba[Al₂Si₂O₈] atitikmenys: angl. barium feldspar; celsian rus. полевой бариевый шпат; цельзиан ryšiai: sinonimas – bario feldšpatas … Chemijos terminų aiškinamasis žodynas
celzianas — statusas T sritis chemija apibrėžtis Mineralas. formulė Ba[Al₂Si₂O₈] atitikmenys: angl. barium feldspar; celsian rus. полевой бариевый шпат; цельзиан ryšiai: sinonimas – bario feldšpatas … Chemijos terminų aiškinamasis žodynas
полевой бариевый шпат — celzianas statusas T sritis chemija apibrėžtis Mineralas. formulė Ba[Al₂Si₂O₈] atitikmenys: angl. barium feldspar; celsian rus. полевой бариевый шпат; цельзиан ryšiai: sinonimas – bario feldšpatas … Chemijos terminų aiškinamasis žodynas
цельзиан — celzianas statusas T sritis chemija apibrėžtis Mineralas. formulė Ba[Al₂Si₂O₈] atitikmenys: angl. barium feldspar; celsian rus. полевой бариевый шпат; цельзиан ryšiai: sinonimas – bario feldšpatas … Chemijos terminų aiškinamasis žodynas