Across
- 3. If you add other things to clay after you dig it up you create what is called
- 4. lowers the amount of heat needed to melt silica
- 5. a microcrystalline form of quartz and has a completely different physical appearance
- 7. Fluxes and Hardeners are the most
- 9. the mineral form of silica powder used in ceramic glazes and clay bodies
- 13. can be rounded or angular, the latter being more suited to clay bodies
- 16. flux is an ________ that promotes ceramic fusion
- 17. Alters the vitrification temperature of the clay
- 18. feldspar fuses at
- 19. ________ fluxes are like sodium and lead oxides
Down
- 1. ________ fluxes are like calcium and magnesium oxide
- 2. The material that acts as a hardener in glass,glazes,clays and all ceramic materials
- 6. clay body is made of ____ components
- 8. the acceptable exceptions are
- 10. fluxes do not
- 11. fluxes are ________ that chemically formulate
- 12. Nepheline syenite melts at
- 14. a crystalline form of silica
- 15. Cornish stone melts at