SIZE: Variety from 3 to 5 cm. Each quartz stone is irregular, unpolished and raw. WEIGHT: Approximately 500g. EFFECTS: Cleanses and stabilizes the aura, absorbs and neutralizes negative energy and stress. Increases concentration, self-confidence and aids in decision making. Promotes positivity, balances energies and improves physical and mental balance. USES: Ideal for cabbing, tumbling, cutting, polishing, wire wrapping, gem mining, wicca, reiki, crystal healing, decoration and handmade jewelry making.