Meet BIF— The World’s Toughest Rock
What’s the strongest rock on the planet? And one of the oldest? And also in Michigan? Our pal BIF, the banded iron formation!
Browse Articles by Category:
Are you a Michigan rockhound with some street cred?
APPLY TO BE A GUEST CONTRIBUTOR on our blog!
THE ARTICLE MINE
Expert-written articles about Michigan-based geology, earth science, public interest, guides, insights, travel, and adventure.
Come along and take a break from rockhounding to learn something new, get inspired, and deep dive into rock-solid observations leaving no stone unturned—with a marble-ous rock pun or two mixed in!