Clear Quartz Approx. 1" Baby Skull

Clear Quartz
Stone of ‘Cosmic Consciousness’
Amplifies energies
Elevates and heals on all levels
Programmable by one’s focused intentions
Encourages clarity
Cleanses and balances physical and spiritual bodies
Enhances psychic abilities, tuning you to your spiritual path
Harmonizes with all stones
 
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