It is generally accepted that Selenite is one of the most powerful crystals for healing. Also it is connecting to the third eye, crown and etheric chakras. Some say it promotes purity and honesty. It is said it forces the person holding it to be honest with themselves. 

Size of the Selenite Piramid : Height 10cm, Lenght 4cm, Width 3.5cm.

Origin  Morocco

Selenite Pyramid - 10cm