abstract:Azomite (pronounced ā-zō-mite, officially all-caps AZOMITE) is the registered trademark for a complex silica ore (hydrated sodium calcium aluminosilicate) with an elevated ratio of trace minerals unique to the Utah mineral deposit from which it is mined. When the ash from a volcanic eruption filled a nearby seabed an estimated 30 million years ago, the combination of seawater, fed by hundreds of mineral-rich rivers and the rare earth minerals present in the volcanic ash, created the deposit’s distinctive composition.