3 g, 3 cm crystal. It is most often used to obtain or restore life energy - therefore it drives away fatigue and states of exhaustion. It cleans the aura, removes energy blockages and impurities in the aura, helps remove negative energies from the body and receive positive energy, illuminates problems. It provides energy and light - for self-knowledge and improvement, for meditation and for strengthening spiritual power. It receives and emits energy at the same time, acts as a catalyst, purifies the lungs.