Blue Aqua Obsidian 2" Skull

Blue Aqua Obsidian
The “Stone of Swimmers”
Strong connection to the water / aquatics
A ‘Protector Stone’ for sensitive people
Calms feelings of anger and frustration
Protects against negativity
Stimulates throat chakra
Enhances communication
Useful in helping children overcome the fear of water
 
Crystal Skulls
Help connect with spirit guides, ancestors, spiritual teachers and ascended masters
Can provide protection and healing when worked with
Can connect with ancient knowledge, as they are record keepers
Assist with channeling guidance
Can be held during meditation
You can also use them as part of a crystal grid
They each have their own personality and when asked, will give you their name
This is just a snippet of information.  There are many good books and articles to provide more information