Azomite is one of the first rock dusts that was discovered and effectively marketed to the gardening and agricultural industries. This unique silica clay deposit was discovered near Salt Lake City in Utah in the 40’s, and has proven to contain an unusual array of minerals, trace and rare earth elements in a balanced ratio. The deposit that this material comes from is actually an old volcanic deposit that filled a seabed an estimated 30 million years ago. The combination of the ash and the mineral rich deposits from the surrounding rivers and watershed created the distinctive composition that became Azomite - ‘the A to Z of minerals and trace elements’. It is the diverse range of trace elements in this material that are of particular importance. Though the quantities of these are minute, their presence is essential as they serve as critical catalysts in the soil.