Sciencemall-usa.com is a science gift store and products outlet for the adult science enthusiast, science educator, and scientific researcher. We specialize in selling some of the coolest and most unique specimens on the planet. From Earth's oldest rocks to the Pacific ocean floor manganese nodules, there is always something interesting to add to the science enthusiast's collection! We also specialize in hand made artisan meteorite, lightning sand, and Libyan Desert Glass jewelry.

Stromatolite Gunflint Chert Formation Canada

Gunflint Chert Stromatolite
Gunflint Chert Stromatolite
Item# JPT-gunflint
Regular price: $220.00
Sale price: $175.00
Availability: Usually ships the next business day

Product Description

Gunflint Chert Stromatolite
So what will we find on Mars? Maybe life in the form of stromatolites. Maybe?

This specimen is from the Gunflint Formation, a Paleoproterozoic chemical-clastic sedimentary assemblage outcropping to the immediate northwest of Lake Superior that became famous, in 1954, for containing the oldest fossil assemblage known at that time.

Older microfossils have since been discovered, but the Gunflint prokaryotes remain one of the most diverse Precambrian fossil communities.

Scientists think that the Earth's rotational rate during this era resulted in 20-hour days ~1.8 billion years ago, implying a total of about 450 days per year!

The wavy laminae seen here of the chertized stromatolites (chert is cryptocrystallized quartz) represents a facet of the early history of life on Earth. Location: Gunflint Formation, Ontario, Canada (outside of the nature preserve), circa 1963.

Size: 35mm W X 39 mm H X 12mm D.

Ships with tag, tag stand, Certificate of Authenticity, information about the Gunflint Stromatolite formation. Acrylic base and photo cube not included.

This is a superb specimen with pyrite mineralization clearly seen with other contrasting dark features, in this rare stromatolite from the Gunflint Range, Canada.


Thank you for shopping at Sciencemall-USA.com. Serving science enthusiasts worldwide for 23 years!