Carmela Sales puzzle 4

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Across
  1. 2. clay ___ consists of clays, fluxes, hardeners, and openers
  2. 4. some body constituents are in natural stoneware clay, and they are often removed during ____.
  3. 5. give clay texture and workability.
  4. 8. the fluxes used in bodies are ____, such as cornish stone, feldspar, and nepheline syenite.
  5. 10. to mix the clays, fluxes and hardeners, you would have to ____ them together
  6. 11. openers are usually added at the ____ phase
  7. 13. a ceramic composition that has been fused, quenched, and granulated.
  8. 14. silica is hard but is fluxed during ____ and then gives its hardness to the resulting glass
  9. 15. the proportion of openers to clay is determined by ___ weight of the opener to plastic weight of clay.
Down
  1. 1. body ____ are the different materials used in compounding and blending pottery bodies.
  2. 3. may be added as flint, quartz, silica sand and cristobalite.
  3. 6. purpose is to render any soluble or toxic components insoluble by causing them to combine with silica and other added oxides.
  4. 7. Frits melt and flux the free silica in the body to produce a ____ glass
  5. 9. cow ____ is an example of a clay opener.
  6. 12. ____ clay often contain fluxes, hardeners and openers.