Glossary of landform and geologic terms. 2013.
Glauconite — Infobox mineral name = Glauconite category = Phyllosilicate mineral boxwidth = boxbgcolor = imagesize = caption = formula = (K,Na,Ca)1.2 2.0(Fe+3,Al,Fe+2,Mg)4 (Si7 7.6Al1 0.4O20)(OH)4·7nH20 [http://www.glossary.oilfield.slb.com/Display.cfm?Term=gl… … Wikipedia
glauconite — glauconitic /glaw keuh nit ik/, adj. /glaw keuh nuyt /, n. a greenish micaceous mineral consisting essentially of a hydrous silicate of potassium, aluminum, and iron and occurring in greensand, clays, etc. [1830 40; < Gk glaukón, neut. of glaukós … Universalium
greensands — a) An unconsolidated, near shore marine sediment containing substantial amounts of dark greenish glauconite pellets, often mingled with clay or sand (quartz may form the dominant constituent); prominent in Cretaceous and Tertiary coastal… … Glossary of landform and geologic terms
mica — micalike, adj. /muy keuh/, n. any member of a group of minerals, hydrous silicates of aluminum with other bases, chiefly potassium, magnesium, iron, and lithium, that separate readily into thin, tough, often transparent, and usually elastic… … Universalium
Microspherulite — Microspherulites are microscopic spherical particles with < 2 mm diameters, usually in the 100 micrometre range, mainly consisting of mineral material (the Greek litos means stone ). Only bodies created by natural physico chemical… … Wikipedia
Glauconita — General Categoría Minerales filosilicatos Clase (Strunz) Fórmula química … Wikipedia Español
