Which is better than?

It is possible to conclude that both are very good, however each has its very own advantages. For example frac sand tends to be cheaper (even when it goes under the resin coating process). The ceramic proppant is more expensive and is also smoother then the frac sand. Of course both of these proppants are good for both oil and gas plants; however each business will see which option best suits their needs as well as their budget. If you are in the field make sure you analyse your plant and check whether or not frac sand or ceramic is the best frac proppant for you. It is also good to keep in mind that there are other cheaper proppants that might not be as good as the above mentioned ones