Mineral based amendments are effective supplements to create nutrient-rich soil for powerful plant growth. Whether you are creating a super-soil, top-dressing to add back plant food, or blending a compost tea, HTG Supply’s selection of Azomite & Minerals are here to help your growing …go right. Unlike some other supplements like bat guano or blood meal, which are made from animal droppings and byproducts of meat processing, azomite and minerals come directly from the earth. This puts them among vegan supplements like alfalfa meal and kelp meal. Shop now to find the minerals worth their salt for use in your garden today.