If my memory is correct, dolomite is basically powdered rock. It's NOT ionic or colloidal, so the particles are too large to get across the cell membrane to nourish the tissues. I don't think that the particles are broken down by the digestive tract.
I take ionic/colloidal minerals (Sea Minerals from Assured Organics, though Concentrace seems like a similar product), along with a few drops of Willard Water. It gives my filtered water a nice alkaline pH of about 8, along with a good ORAC score. Nenah Nenah Sylver, PhD author, The Rife Handbook of Frequency Therapy and Holistic Health healing from cancer and other diseases with non-invasive, effective technology suppressed by the medical cartel until recently <http://www.nenahsylver.com> www.nenahsylver.com