A unique material found in many University of Saskatchewan (U of S) buildings, is getting some international attention.

Tyndall Stone is limestone that has fossil fragments in it. It can only be found in Manitoba and dates back over 400 million years.

An application was made to earn Global Heritage Stone Resource status for the material.

“The Tyndall Stone was an obvious candidate to be the first Canadian stone nominated because of its unique appearance and its widespread use,” paleontologist with the U of S’s department of geological sciences Brian Pratt said on the school’s website.

Pratt said he started seeing the stone in structures across Canada, which intrigued him.

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