Uses: ♥Snail repellent ♥Grind down to make flour as soil amendment, dog food ♥Seasoning or human mineral consumption ♥Make a tonic as soil amendment ♥Creates air pockets 4 aerobic soil ♥Kills grubs ♥Mulch Nutritional Value: ♥ Calcium ♥ Phosphorous ♥ Potassium ♥ Nitrogen ♥ Protein Spread shells on the surface of the soil and or mix into the soil. It's your choice as to how you want to use it.