Rock crystal
Clarity
It promotes clarity and improves our perception and deeper understanding.

>The importance of gemstone water has been known for hundreds of years.
Shile Hildegard von Bingen mentioned the use of gemstone water in her remarks.
Information of the stone is transferred to the water during the production of gemstone water. So it's not about taking something away from the stones - it's the energy or information of the stone which is transferred to the water. The effect of the gemstone is thus transferred to the newly created water.