Aqua aura is quartz that has been coated in pure gold.  It takes on both properties of gold and quartz.  Aqua aura stimulates the throat chakra and encourages opening to channel.  it has also been used to activate other minerals for healing. 

Clear Quartz amplifies, focuses, stores and transfers energy. Clear Quartz balls are traditionally used for scrying and enhancing psychism. During sleep it can promote psychic dreams. Clear Quartz has many uses in healing and magical rituals. Clear Quartz is used in healing rituals, but can also be used to aid healing in general. It is useful for circulatory disorders, vertigo and burns. Chakras: Can be used with all chakras.