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Defenition of the word vermiculite

    • Defenition of the word vermiculite

      • Any of a group of platy minerals, hydrous silicates of aluminum, magnesium, and iron, that expand markedly on being heated: used in the expanded state for heat insulation and as a plant growth medium.
      • any of a group of yellow or brown hydrous silicate minerals having a micaceous structure

    Hypernyms for the word vermiculite

      • mineral

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