Selenite stick.
Very fine vibration, brings clarity, opens higher crown chakras to angelic consiousness. Selenite is the link to the light body, helping it to anchor to earth vibration. Excellent for meditation & spiritual work. One of my favourites. 
Great protector, form a protective grid around your house.  I place my other crystals on them to charge.
Selenite can dissolve in water so don't get it wet!