Full moon brass earrings from krystle knight ball ball sleepers featuring a centre mini clear quartz crystal. Crystal 1.5cm x 0.5cm sleeper 1.5cm please note: as the crystal are natural beauties, each crystal may vary slightly in size & clarity. Clear quartz works on all areas of the mind and body, awakening, amplifying and transmitting energy and clarifying thought processes. It is an excellent stone for meditation, directing energies with more intensity. It connects to the higher self, removes negativity and allows access to your spirit guides. Clear quartz provides clarity in thinking and awareness. It is also a powerful healing stone for any condition.