Apophyllite points.. I have a 30kg geode of this crystal, will put it in the next post and while working with it, you really do feel an immense surge of energy. Especially while meditating or doing any energy work like reiki. When I conduct my reiki classes at home I keep this in the middle and put the intention the reiki energy is going through the crystal, that way it gets expanded with all the little points inside.. a high vibration crystal that is excellent for energy work, even with a single point. Reduces anxiety and stress, connects to the divine energies, strengthens your faith in the universe knowing you are taken care of.