Rockdust

Rock dust is an organic fertiliser consisting of crushed basalt, a volcanic rock, which contains minerals and trace elements. Rock dust is added to soil to improve fertility. Benefits of adding Rock dust to soil include increased moisture-holding properties in the soil, improved cation exchange capacity and better soil structure and drainage. Rock dust also provides calcium, iron, magnesium, phosphorus and potassium, plus over 70 minerals, trace elements and micronutrients.