Dolomite Lime Plus Magnesium and Calcium "Greenway Biotech Brand" 5 Pounds 5 Pounds of Organic Dolomite Lime Powder Plus 11.8% Magnesium and 22.7% Calcium Helps to Adjust the pH Level Natural & Organic Source of Calcium and Magnesium to Restore the Essential Plant Secondary Nutrients Great to Make your Own Compost and Worm Bins Very Fine Powder to Break Down in the Soil Quicker