These special and considered relatively rare crystals, contain small pockets of water bubbles which can be observed without the need for a microscope. 
As the Quartz is forming, the water becomes trapped when the crystal has cooled down, resulting in the beautiful water bubbles often considered as ancient water. 
Enhydro Quartz is said to help with opening our Akashic records to access past lives, and also cleanses the mind, body and spirit during meditation and purges toxins from the body. 
This piece weighs 58g and you may find more than one moving bubble. 
The pen can easily be removed with warm water and a soft cloth.