palygorskite

palygorskite

      a fibrous magnesium aluminum silicate. The structure of palygorskite contains extended silicon-oxygen sheets, justifying the retention of the mineral in the layer silicate family, but the tetrahedral SiO4 groups forming these sheets are oriented in such a manner as to develop extended lathlike features that give rise to the fibrous morphology. The mineral occurs in sediments from playa lakes and saline deposits, in desert soils, and in calcareous material. Attapulgite is a variety of palygorskite found in Attapulgus, Ga. For chemical formula and physical properties of attapulgite, see clay minerals (clay mineral) (table).

* * *


Universalium. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • Palygorskite — A sample of Palygorskite General Category Phyllosilicate Chemical formula …   Wikipedia

  • palygorskite — ● palygorskite nom féminin Silicate naturel de magnésium, monoclinique, du groupe des argiles …   Encyclopédie Universelle

  • palygorskite —    A cave mineral (Mg,Al)2Si4O10(OH)●4H2O [11] …   Lexicon of Cave and Karst Terminology

  • palygorskite — pal·y·gor·skite …   English syllables

  • palygorskite — ˌpaləˈgȯrˌskīt noun ( s) Etymology: modification of German paligorskit, from the locality in the Ural mountains near which it was found : a hydrous basic silicate (Mg3, Al2)Si4O10(OH)2.H2O of magnesium and aluminum that belongs to the family of… …   Useful english dictionary

  • clay mineral — any of a group of hydrous aluminum silicate minerals, as kaolinite, illite, and montmorillonite, that constitute the major portion of most clays. [1945 50] * * * Any of a group of important hydrous aluminum silicates with a layered structure and… …   Universalium

  • Maya Blue — A warrior with Azul Maya on the background Maya Blue (Spanish: Azul Maya) is a unique bright azure blue pigment manufactured by cultures of pre Columbian Mesoamerica, such as the Maya and Aztec. Contents …   Wikipedia

  • Montmorillonite — A sample of montmorillonite (unknown scale) General Category smectite, phyllosilicate …   Wikipedia

  • Constantino Reyes-Valerio — Nacimiento 10 de enero, 1922 Zinacatepec Puebla, México Fallecimiento 13 diciembre, 2006 Ciudad de México …   Wikipedia Español

  • Constantino Reyes-Valerio — Born January 10, 1922(1922 01 10) Zinacatepec, Puebla, Mexico …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”