What is the difference between pure water and mineral water?

Mineral water contains minerals or other dissolved substances that alter its taste or give it therapeutic value. Mineral waters must:

• originate from a natural, protected and specific underground source
• Be bottled at source
• Be microbiologically safe to drink without treatment.
• 
  

Bottled water is purified drinking water which is bottled, and is neither spring water nor natural mineral water. It can come from a variety of sources like ground water wells.