nhydro Crystal is a Quartz or Agate stone that contains bubbles of water inside.
These bubbles of water got trapped inside the crystal as the crystal was growing.
The most valuable Enhydro Crystals are those that have moving bubbles.
An air pocket is present in the crystal, causing the water bubble to move up and down right within the pocket.
Other Enhydro Crystals also have water bubbles inside them, but they are usually stationary.