Our Bulk Coral Calcium is 100% pure from the Caribbean. It is collected above sea level and is therefore eco safe. Coral Calcium includes 72 trace minerals. Every mineral (especially Calcium) is in similar proportions as found in the human body. This is vitally important because some trace minerals are entirely missing from our diet. Our price is only $14.00 for a half pound of powder, or a full pound for $25.00. For a full sample certificate of analysis, click here.