Stromatolite (onyx Brown) tumbled stones

One of the oldest fossils in the world, Stromatolite, also know as Sourrite, can help in relieving physical and emotional stress, helping to understand life lessons. Can also aid in patience, strength, helping you overcome challenges, understand and see solutions, be steadfast and persistence, connect to the essence of life, having resilience and versatility. A beautiful dark and blacked striped stone. 

Stromatolites are theorized to be layered sedimentary structures predominately formed by cyanobacteria. They are the oldest known macrofossils dating back over 3 billion years.