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单词 smectite
释义

Definition of smectite in English:

smectite

noun ˈsmɛktʌɪtˈsmektīt
mass noun
  • A clay mineral (e.g. bentonite) which undergoes reversible expansion on absorbing water.

    Example sentencesExamples
    • The limestone-dolomite breccia is characterized by abundant palygorskite, minor sepiolite, rare kaolinite and near absence of smectite.
    • The clay mineral smectite, with physical properties that make it unsuitable as a soil if it is wet, is only found in major amounts in covered stadiums.
    • The clay is composed of illite and kaolinite, with minor amounts of chlorite and smectite.
    • Common clays are usually mixtures of clay minerals such as illite, smectite, and kaolinite, together with fine silica and other minor constituents.
    • The lake may have dried up or nearly dried up periodically, producing outward concentric zones of albite, analcime, clinoptilolite, and smectite.

Origin

Early 19th century: from Greek smēktis 'fuller's earth' + -ite1.

 
 

Definition of smectite in US English:

smectite

nounˈsmektīt
  • A type of clay mineral (e.g., montmorillonite) that undergoes reversible expansion on absorbing water.

    Example sentencesExamples
    • The clay is composed of illite and kaolinite, with minor amounts of chlorite and smectite.
    • Common clays are usually mixtures of clay minerals such as illite, smectite, and kaolinite, together with fine silica and other minor constituents.
    • The clay mineral smectite, with physical properties that make it unsuitable as a soil if it is wet, is only found in major amounts in covered stadiums.
    • The lake may have dried up or nearly dried up periodically, producing outward concentric zones of albite, analcime, clinoptilolite, and smectite.
    • The limestone-dolomite breccia is characterized by abundant palygorskite, minor sepiolite, rare kaolinite and near absence of smectite.

Origin

Early 19th century: from Greek smēktis ‘fuller's earth’ + -ite.

 
 
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更新时间:2024/9/20 15:04:50