You shouldn't need to do anything to it. It is actually very hard and is usually very light in color. The nodules that form the holey rock are harder and more acid resistant than the surrounding softer limestone.
I'll bite ---- why run away screaming ? ( I actually grew up on a cattle ranch in Kempner---- AKA the boondocks - went to school in Copperas Cove _ AKA "The armpit of Central Texas." Used to be a good 3 hour drive to Austin - only shopping was downtown on Congress street. Now it's only an hour drive to the "burbs".
The hills ( what we called "Mountains" LOL
) are covered with these holey nodules.