Stromatolite Morocco vanadinite Approximately 30-35 million years old

Approximately 30-35 million years old

This item is 2" x 1

They’re not rocks

Marcasite is made of iron sulfide

This item is 5” x 4” and weighs 6

Stromatolite Morocco vanadinite Approximately 30-35 million years oldStromatolites are layered colonial sedimentary structures predominantly formed by photosynthetic microorganisms, such as cyanobacteria. They are the oldest living fossil, which are primarily responsible for putting oxygen into the atmosphere. Their origins date back over three billion years and were the dominant life form on Earth for more than two billion years. Modern day stromatolites are rare, and can often be found in parts of Australia. This