I have a simple little experiment for you to do so you may find out some info for your self about minerals!
Get yourself a Limestone rock or an oystershell or an egg or a bone from some animal!
Now each of these may contain the Mineral Calcium in them!
It may be the simplest for you to get an egg, for they are available most anywhere!
Now take this egg and put it in a jar and cover it with apple cider vinegar, which is a very weak Acid!
And leave this sit, and you look at it each day and see how long it may take for the ACV to break down the eggshell and disolve it into the vinegar solution!
Then maybe you may have the answer which you asked about?