glauconite pellets

glauconite pellets
   Silt to sand-sized, nodular aggregates with a characteristic greenish color, dominantly composed of the clay mineral glauconite; formed in near-shore marine sediments and subsequently exposed by a drop in sea level or rise of a land mass, as on a coastal plain. Glauconite pellets have a high potassium content and higher CEC and moisture retention compared to other mineral sands.
   Compare: greensands.

Glossary of landform and geologic terms. 2013.

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  • 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 [… …   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

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