Pepe, scroll down this page to my post Mom's magic pill for a description of Coral Calcium.
John, you mentioned in a post that a friend of yours makes Colloidal Silver . Do you know the generator or system she/he uses? I've been researching it for some time and can't make up my mind about which one to buy. Hulda Clark now sells a portable one that uses the silver rods, but I know that one can just buy Canadian maple leaf coins (99.999% silver) that will last a long long time. For almost nothing (1$ a gallon) one can make one's own Colloidal Silver ...I'm more curious about particle size as opposed to parts per million.
Have any first hand info? Also, do they add baking soda product to alkalinize it? What has been your experience with using it?