Beautiful Hello Kitty Aura Quartz Moss Agate druzy carving. The color of the aura quartz depends on the type of metal that is used. Gold aura quartz is created using gold, silver aura quartz is created using silver, rainbow aura quartz is created using a combination of titanium and niobium, and opal aura quartz is created using niobium. #hellokitty #mossagate #auraquartz