Clay Cycle and Types of Clay

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Across
  1. 5. Unglazed clay fired once at a low temperature. The fifth stage in the clay cycle.
  2. 6. Primary clay that is white in color and free of any impurities.
  3. 7. scratching hatch marks into the clay before joining pieces together
  4. 8. Also called bentonite, this clay comes in a powder form and is used to enhance clay plasticity.
  5. 10. An earthenware body, usually reddish or brown in color containing 30% grog.
  6. 11. Clay that is mixed with dirt, straw, and other organic material. The clay is air dried and used to build homes.
  7. 13. Clay in a liquid condition which functions as “glue” to hold two pieces of clay together, or to put on top of clay surface for decoration. The first stage in the clay cycle.
  8. 14. Clay which has been dried beyond the naturally dry state which it reaches in the air. The fourth stage in the clay cycle.
  9. 16. Ware that is completed in form, but not yet dried sufficiently to be ready to be fired.
  10. 17. Clay made from one source of granite, found at higher elevations, lacks plasticity.
  11. 20. Clay that has been transformed by heat into a glasslike solid, becoming ceramic ware. It is important to note vitrified clay is impermeable to water, and different clay bodies may vitrify at different temperatures. The sixth stage in the clay cycle.
Down
  1. 1. Clay bodies formulated to fire at low temperatures, cone 06. Terracotta clay is an example of earth ware, it is red and used to create tiles and flowerpots.
  2. 2. Provides glazes with glass-like quality.
  3. 3. The second stage in the clay cycle
  4. 4. The process of forcing air bubbles from the clay to obtain a smooth consistency to the clay.
  5. 7. Clay composed of multiple sources of granite, found at lower elevations near streams or bodies of water.
  6. 9. The state clay reaches while drying when it will hold its shape without sagging. The third stage in the clay cycle.
  7. 12. Any material added to the clay to open the clay body to promote even drying, to reduce shrinkage, and/or to add texture
  8. 13. High fire clays (Cone 6-10) hard and vitrified when fired. This type of clay is most often used by potters because of it’s plasticity and firing range.
  9. 15. A decorative technique in which greenware is carved into to create a pattern or design.
  10. 18. Provides glaze with hardness and durability.
  11. 19. A reference to pottery in any state of production.