The New Country Organics Fertrell Aragonite is versatile and ideal for gardening, pasture maintenance, and as a livestock feed additive. Aragonite is a calcium carbonate mineral from seashells. It’s a beneficial supplement for livestock that promotes strong bones, supports milk and egg production, and promotes efficient weight gain, feed use, and muscle tone, so you can feed it to your whole farm fam. It also helps to strengthen cell walls in plants and can be used to counteract high levels of magnesium in the soil.