Silicate — Sil i*cate, n.[Cf. F. silicate.] (Chem.) A salt of silicic acid. [1913 Webster] Note: In mineralogical chemistry the silicates include; the unisilicates or orthosilicates, salts of orthosilicic acid; the bisilicates or metasilicates, salts of… … The Collaborative International Dictionary of English
magnesium silicate — n a silicate that is approximately Mg2Si3O8·nH2O, is obtained by precipitation as a white powder, and is used chiefly in medicine as a gastric antacid adsorbent and coating (as in the treatment of ulcers) * * * MgSiO3, a silicate salt of… … Medical dictionary
aluminum silicate — Al2SiO5, the silicate salt of aluminum. It occurs in several different hydrated forms in nature that have pharmaceutical or dental uses; see attapulgite, bentonite, fuller s earth, kaolin, and zeolite. See also silicatosis … Medical dictionary
135 Hertha — Infobox Planet width = 25em name = 135 Hertha symbol = background = #FFFFC0 caption = discovery ref = Cite journal | title = Observations of the Planet Hertha (135), made at the Litchfield Observatory of Hamilton College | last = Peters | first … Wikipedia
laumontite — /loh mon tuyt/, n. a white zeolite mineral, chiefly hydrated silicate of aluminum and calcium. [1795 1805; named after F. P. N. G. de Laumont (1747 1834), French mineralogist who discovered it; see ITE1] * * * ▪ mineral common hydrated calcium… … Universalium
thaumasite — ˈthȯməˌsīt noun ( s) Etymology: International Scientific Vocabulary thaumas (from Greek thaumasios wondrous, from thauma miracle, wonder) + ite more at theater : a white mineral Ca4Al6Si6O24( … Useful english dictionary
Gmelinite — is one of the rarer of the zeolite minerals being a hydrated silicate of calcium, aluminium and either sodium or potassium with formula: (Na2,Ca)Al2Si4O12 middot;6H2O.It forms striking crystals, shallow, six sided double pyramids, it can be… … Wikipedia
Mars (planète) — Pour les articles homonymes, voir Mars. Mars … Wikipédia en Français
Géologie de la planète Mars — La géologie de la planète Mars, parfois appelée aréologie[1], recouvre l étude scientifique de Mars et de ses propriétés physiques, de ses reliefs, de sa composition, de son histoire, et de tous les phénomènes qui ont affecté ou affectent encore… … Wikipédia en Français
deweylite — ˌlīt noun ( s) Etymology: Chester Dewey died 1867 American clergyman and scientist + English lite : a mineral Mg3Si2O5(OH)4 occurring as a hydrous amorphous resinous magnesium silicate (hardness 2 3.5, specific gravity 2.0 2.2) * * * deweylite… … Useful english dictionary