When brown opal flint is infused into water it releases natural silicon and other minerals, activating the water and giving it a new structure. Living and activated water has multiple health benefits including collagen enhancement, vitamin absorption, hydration, immunity boost, promoting a healthy gut, and pulling toxic aluminum from the body. 

Not all flint can be used to purify water. Flint collected on the surface of the soil, near rivers and seas is not suitable for use as a filter for water. The porous surface of flint absorbs, like a sponge, all environmental pollution including heavy metals, radionuclides, and oil products. 

The flint you are using is pure flint, which lies at a great depth, more than 71 meters, among the chalk rocks in the beautiful mountains of Altai Republic. Free of toxins, populants, and metals.