This listing is for 1 (one) piece of giant chunk of Clear Quartz. These pieces are stunning, harvested in Mexico. These are high quality crystals. Multiple sizes available: Small (7 - 10 oz) Medium (10 - 15 oz) XL (1 lb - 1.5 lb) XXL (1.5 lb - 2 lb) Clear Quartz is associated with the Crown Chakra. It is a crystal of high purity used to open, cleanse and realign all chakras. Clear Quartz cleanses your surroundings and absorbs negative energies. While scientific evidence supporting the effectiveness of healing crystals is limited, many people find them to be a valuable tool for promoting holistic wellness and self-care. Each healing crystal is a product of Mother Nature's intricate processes, formed over millennia within the Earth's crust through geological phenomena. Due to the unique conditions of their formation, no two crystals are exactly alike, resulting in variations in color, size, and shape.