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  1. Clay - Wikipedia

    Clay Clay is a type of fine-grained natural soil material containing clay minerals [1] (hydrous aluminium phyllosilicates, e.g. kaolinite, Al 2 Si 2 O 5(OH)4). Most pure clay minerals are white …

  2. Clay | Definition, Formation, Properties, Uses, & Facts | Britannica

    Clay, soil particles the diameters of which are less than 0.005 millimeter; also a rock that is composed essentially of clay particles. Rock in this sense includes soils, ceramic clays, clay …

  3. What is clay's definition, structure, types, uses, and facts

    What is Clay? Clay is a naturally occurring material composed primarily of fine-grained minerals, which develop through the weathering and alteration of rocks. It has the unique ability to …

  4. What is clay? And where does it come from?

    Clay owes its unique properties to its mineral composition, primarily alumina and silica. These minerals dictate how it behaves, especially during firing - the process of baking clay at high …

  5. Clay - New World Encyclopedia

    Clay is a term used to describe a group of fine-grained, silicate minerals known as aluminum phyllosilicates, containing variable amounts of chemically associated water.

  6. CLAY Definition & Meaning - Merriam-Webster

    The meaning of CLAY is an earthy material that is plastic when moist but hard when fired, that is composed mainly of fine particles of hydrous aluminum silicates and other minerals, and that …

  7. What Is Clay? - Glazy

    Nov 28, 2025 · An introduction to clay types, properties, and composition, including earthenware, stoneware, and porcelain.

  8. Understanding Clay Soil and How to Improve It - The Spruce

    May 20, 2025 · Clay soil can be extremely frustrating to work with and tough on plants. Improve clay soil by adding organic matter.

  9. Clay 101: Characteristics, Types, Pros, Cons, & Construction Tips

    Jan 14, 2025 · Explore how clay’s different types and characteristics impact the way we use it. Plus, get seven essential tips for working with this expansive soil.

  10. CLAY | definition in the Cambridge English Dictionary

    CLAY meaning: 1. thick, heavy soil that is soft when wet, and hard when dry or baked, used for making bricks and…. Learn more.