Stylish Stylolites— When Limestone Dresses Up Like Someone Else
Often confused for petrified wood, these pieces of deformed limestone have proven to be quite the tricksters here in Michigan; but what exactly are they, and how do they form?
Petrified Wood in Michigan: The Facts and the Fiction
Petrified wood, it’s a stone everyone is familiar with by name at least. And everyone gets excited about finding it, but can it actually be found in Michigan? The story is complicated, but the answer is…
The Stunning Quartz Crystals of Goose Lake
Quartz crystals— big ones at least— are not common in Michigan, but they can be found in at least one place: Goose Lake, near Marquette…
Midnight Mining: The Deadliest Rockhounding Adventures
It’s exciting. It’s rewarding if you don’t die or go to jail. But when you midnight mine, there’s no guarantee that you’ll ever see the light of day again…
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!
Agates: Banded and Beautiful
Michiganders far and wide have heard of the legendary Lake Superior agate, but what exactly are they? And what is all this you’re hearing about cold water agates? We’ve got just the answer to this, and more!
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