Clay

Clay is a general term including many combinations of one or more clay minerals with traces of metal oxides and organic matter. Geologic clay deposits are mostly composed of phyllosilicate minerals containing variable amounts of water trapped in the mineral structure.

Read more about Clay:  Formation, Definition, Grouping, Historical and Modern Uses

Famous quotes containing the word clay:

    I am sure my bones would not rest in an English grave, or my clay mix with the earth of that country. I believe the thought would drive me mad on my death-bed could I suppose that any of my friends would be base enough to convey my carcass back to her soil. I would not even feed her worms if I could help it.
    George Gordon Noel Byron (1788–1824)

    When Nature was shaping him, clay was not granted
    For making so full-sized a man as she wanted,
    So, to fill out her model, a little she spared
    From some finer-grained stuff for a woman prepared,
    And she could not have hit a more excellent plan
    For making him fully and perfectly man.
    James Russell Lowell (1819–1891)

    As ye of clay were cast by kind,
    So shall ye waste to dust.
    Thomas Vaux, 2d Baron Vaux Of Harrowden (1510–1566)