STROMATOLITE (THICK POLISHED SLICE) - 70 million years old - Andes Mountains, Bolivia
« backSTROMATOLITE
Cut and polished
70 million years old
(Cretaceous period)
Potosi, Andes Mountains, Bolivia
This is a beautiful thick slice of a stromatolite preserved in rock. Polished on one side and presented in a lidded gift box.
Stromatolites are structures formed in shallow water by cyanobacteria (blue-green algae). They are among the oldest fossils, dating back 3.5 billion years.
Stromatolites use water, carbon dioxide and sunlight to create food and give out oxygen as a by-product and are thought to have been responsible for the oxygen in the Earth’s primaeval atmosphere. Today stromatolite communities are rare.
Click on a picture for a larger image
Size: approx. 10 x 10 x 2 centimetres
Weight: 413 grams
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