Stromatolites are rock-like structures by bacteria such as cyanobacteria. They are the earliest fossil evidence of life on Earth. The oldest known stromatolites have been dated between 3,710 million years and 3,695 million years old.
Country of Origin: Bolivia
You will receive 5 Polished Stromatolite pieces scooped randomly from the box varying in size between 1.5 to 1.5cm+ long with varying widths and depths. All sizes are approximate and each mix will vary in size and colour.