C-MOULD  is  a unique collection, and knowledge base, for microorganisms that have application within the arts. One of its acquisitions, the bacterium Cupriavidus metallidurans strain CH34  will  reductively precipitate toxic gold(I/III)-complexes to produce  nano-particulate metallic gold. In other words this microbial alchemist can transform certain chemicals into gold. Here it has been exposed to Auric Chloride (gold chloride) and produced gold as a small scale test for an art project to make the sheep with the Golden Fleece. I won’t get rich from this project as 1 g Auric Chloride costs £80. Remember this is art and not science.