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Aqua aura

Aqua aura is a beautiful iridescent bluish to clear stone that is made by coating clear quartz that with a fine layer of gold (or aluminium or copper). In a process called called vapor deposition, the quartz is put into a vacuum chamber and attached to very hot electrodes. A thin layer of the metal (only a micron or two thick) coats the quartz as the metal evaporates.


Einordnung