释义 |
Definition of smectite in English: smectitenoun ˈsmɛktʌɪtˈsmektīt mass nounA 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: smectitenounˈsmektīt 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. |