Up for sale is one fossil stromatolite. Stromatolites are layered sedimentary formations that are created by photosynthetic organisms such as cyanobacteria. They are some of the earliest fossils ever discovered on earth, some as early as 3.5 billion years old. There are still stromatolites living on earth today, but they are much rarer today and are only found in a handful of locations such as the Bahamas and the Hamelin Pool in Western Australia. This particular example of an ancient stromatolite fossil is a unique and intriguing piece of home decor and could also be used as a paperweight or teaching tool, or a compelling conversation piece for those interested in fossils and prehistoric relics. It would make a striking addition to any fossil collection or display.