What Is Clay?
Clay is a special kind of earth. It is made up of the smallest particles of rock, tinier than those in most other kinds of soil. The minerals that make up ordinary clay...
Read MoreClay is a special kind of earth. It is made up of the smallest particles of rock, tinier than those in most other kinds of soil. The minerals that make up ordinary clay...
Read MoreWhat Is Cement Made From? Cement is made from a mixture of lime, clay, silica, iron and aluminum minerals. Limestone is the most important source for the calcium, while...
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