Azomite Rock Dust Volcanic Ash (Certified Dealer) Organic Trace Minerals"Greenway Biotech Brand" 15 Pounds 15 Pounds of Azomite Powder 0-0-0.2 Derived from a Volcanic Ash Deposit Azomite Contains Over 70 Types of Micronutrient and Trace Minerals Great Soil Amendment and Fertilizer Repackaged from Organic and OMRI Listed Azomite Greenway Biotech Inc is a Certified Dealer of Azomite Products