Its been noted that not all waters are equal in nature it has to do with structures found in water.
Pure liquid water doesn't form structures, by definition. It's a liquid.
Ice forms structures because it's a solid.
Its not the minerals but the structure of water these little nano crystals it appears what gives homeopathy meaning, etc...
Water doesn't form crystals at room temperature (at standard pressure), the kinetic energy of its molecules are too great to stay in one place for long.