1) Fine-grained earth materials formed by the decomposition of igneous rock. When combined with water, clay is plastic enough to be shaped; when dry, it is strong; when subjected to red heat or above, it will become progressively more dense and rock-like; and
2) A compound of decomposed and altered feldspathic rock consisting of various hydrated silicates of aluminum along with non-plastics, such as quartz, and organic matter. It is also used as a source of alumina and silica in glazes.
"Clay" is in the NAICS Code "212324"
(Kaolin and Ball Clay MiningPaper clay mining and/or beneficiating)
"Clay" is in the UNSPSC Code "12162600"
Other Database Pages Exist for this Phrase:
Character (Character refers to a letter, digit or other ...)
Vitreous clay ( Vitreous clay is a kind of clay that has been ...)
Fireclay (Fireclay refers to a variation of vitreous china ...)
China clay (China clay is primarily or secondary kaolin , ...)
List of books: Clay