Angels are seen as heavens messengers.  When they are in crystal form they symbolise messages of hope, wisdom and truth.  Protecting their owners, they bring in a sense of safety.  They're also believed to help you unlock and connect with the angelic realm.  With the energies of the crystal what these angels bring forth are intensified
 
Selenite is a powerfully and deep healing crystal that vibrates at a very high frequency and helps to elevate the spirit.  It helps to promote peace and calm while clearing away blocked and negative energy.  It encourages connection and friendship, helps you to access your intuition and enhances mental clarity.  It activates all your chakras but particularly the crown chakra.  The beauty of Selenite is that you can use this stone to help cleanse your other crystals
 
Chakra: Crown