Selenite is a form of gypsum, some of the best of which are found in Mexico. It is associated with the third eye, crown and etheric chakras. It is also associated with the element of wind.
Selenite is a high vibrational stone and is a wonderful stone to clear energy blockages and it induces inner alignment.
Selenite cleanses the auric field and clears congested or negative energies from the physical and etheric bodies.
Selenite allows for communication with the higher self, angels and spirit guides.
Selenite can help you to release insecurities, it is a very calming stone and can aid you to see the big picture.
It is important not to get your selenite crystal wet as it may pit or dissolve.