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SMECTITE [2 records]

Record 1 2005-07-04

English

Subject field(s)
  • Geology
  • Soil Science
OBS

A term that was originally applied to fuller's earth and later to the mineral montmorillonite, and that has also been applied to certain clay deposits that are apparently bentonite and to a greenish variety of halloysite ...

French

Domaine(s)
  • Géologie
  • Science du sol
CONT

Les minéraux argileux. [...] On en connaît plusieurs groupes [...] : [...] minéraux à trois feuillets : smectites et illites [...]. [...] Les smectites, dont les plus répandues sont les montmorillonites, sont des phyllites à trois couches, [...] sont des minéraux expansibles [...]

OBS

Absorbante, la smectite est utilisée pour le dégraissage des peaux sous le nom de terre à foulon.

Spanish

Campo(s) temático(s)
  • Geología
  • Ciencia del suelo
OBS

Variedad de arcilla detergente que se usaba para desengrasar la lana.

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Record 2 2004-09-22

English

Subject field(s)
  • Mineralogy
  • Soil Science
DEF

Isomorphous series of 2:1 layer silicates with great expansion along the o-axis; two silicon-oxygen sheets are condensed with one hydroxide sheet (Al, Mg, Fe isomorphous)

French

Domaine(s)
  • Minéralogie
  • Science du sol
DEF

Ensemble de minéraux argileux à deux couches tétraédriques présentant des propriétés de gonflement intrastructurales par interposition réversible de couches d'eau entre les feuillets.

Spanish

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