Our online science mall at sciencemall-usa.com is a geek gift store for the adult science enthusiast, science educator, and science researcher. Our mission is to provide science gifts, science educational products, meteorites, necklace, pendant, earrings, and fulgurite lightning sand jewelry. We also sell school geology rock and mineral specimens, rare mineral matrix specimens, pallasites, tektites, Libyan Desert Glass, fulgurite lightning sand, Lichtenberg figures, Titanic coal, school rock collections, manganese nodules, elements of the periodic table, fossils and legal historical artifacts. Rare earth rock specimens such as ancient life stromatolites (earth's earliest life), shatter cones, banded iron formation, Greenstone belt BIF banded iron formation, KT/boundary, K-Pg boundary, radioactive minerals, weird stuff to buy, science art posters, prints, curio desk displays, science jewelry pendant necklace earrings, hand crafted artisan jewelry for KennedyCoJewelry, are also our specialty.

Stromatolite Gunflint Chert Formation Canada

Gunflint Chert Stromatolite
Gunflint Chert Stromatolite
Item# JPT-gunflint
Regular price: $220.00
Sale price: $195.00
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 - A Covid-19 Free Facility!