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RK28-40-01-1PC-MYSTBLUE
Inside each little geode, quartz crystals shimmer with a metallic aura finish, and every one comes boxed and ready to give.
Choose rainbow, mystic blue, teal, platinum, gold or angel aura, or collect a few for a colorful display. They make fun party favors, stocking stuffers, teacher gifts and treats for young rockhounds, and the description card tells a little more about the stone.
The geodes are small and vary in shape and size. Their color comes from a thin titanium or metal coating applied to the natural quartz.
Aura or titanium finishes are made by bonding a very thin metal film to the crystal in a vacuum chamber. The film is only a micron or two thick, and light reflecting through it creates the iridescent color.