It is Natural Clear Quartz that undergoes a process of being bonded with Gold and Titanium. This produces the most spectacular vivid and multi-coloured metallic crystals. Titanium Aura quartz is slightly harder to source. It shimmers in all the different colours of the rainbow all over its surface
How is this done? Natural quartz is placed in a vacuum chamber. The air is then removed and microns (tiny particles) of a pure precious metal, or sometimes a mixture of precious metals, is puffed into the vacuum chamber. This settles onto the quartz and a bonding process takes place, permanently bonding the microns to the quartz. This bonding cannot be removed, nor does it peel off (as silver plating might). The only way of removing it would be to smash the top layer off the crystal. Each metal produces a different colour. It is considered to be a natural stones because it only consist of natural elements and is not to be compared to Rainbow Mystic topaz which is lab made.
This array of incredible colours ranging from iridescent pastels to bold and striking colours are very rewarding to own, and will always be an eye catching talking piece.