Many gardeners bemoan the presence of heavy clay soil, but there's a case for its use in your yard thanks to certain benefits ...

Over three days and three nights, smelters using ancient techniques shovel roughly 25 tons of iron-bearing river sand and ... composed of hard silicate particles suspended in clay.

Fortunately, when it comes to mixing sand and clay, a handy bit of soil chemistry comes into play too, namely Cationic Exchange Capacity. “Clay particles have a negative charge due to their ...