Description: Stromatolites are living fossils and the oldest living lifeforms on our planet.

Dating back to 3.5 billion years ago, Stromatolite were a factor in creating earths atmospheric oxygen because it consumed CO₂ and released O₂ through photosynthetic metabolism.

Stromatolites are created by cyanobacteria, it's also called blue-green algae. This algae is microscopic life and not algae, but bacteria and are capable of carrying out photosynthesis. 

Origin: Indonesia

Era: Archean 

Geographic Age: 3.5 billion years ago

Size approximately: 31mm x 22mm x 20mm
Weight: 19g

We do our best to buy quality products- although not every rock is the same. If you choose to purchase the "staff pick option", we will select the best of the batch for you. Otherwise, it will be at random from the larger batch we have in stock.