High vibrational protection crystal Selenite.
Selenite is a crystal that doesn't need to be charged or cleansed. In fact, selenite is an amplifier and a charger in itself.
It is one of the most well-known stones to dispell negative energy and is used for protection. It's used to sooth and creates mental clarity. This crystal is great for meditation as it works to clear the mind. Selenite is used to strengthen memory.

Do not attempt to use selenite in a drinking solution it is not safe to drink.
Formula mass: 172.17

Palm-size crystals are available