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rockhounding

Every Yooper Hub story tagged rockhounding, newest first, with its sources and corrections intact.

3 stories on this page. Page 1 of 1.

Newest

The latest rockhounding story

Jul 24, 20263 min read

Michigan’s Official Gem Is Found Nowhere on Earth but the U.P., and Its Namesake Island Is Off-Limits

Chlorastrolite, the Isle Royale greenstone, exists only on Isle Royale and the Keweenaw. Collecting on the island is illegal, a senator compared it to driveway gravel, and it became the state gem anyway.

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The Rocks Yoopers Hunt on Lake Superior Beaches Are a Billion Years Old

Lake Superior agates are the U.P.'s favorite beach treasure, banded stones about a billion years old. How they formed, and how to...

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Jun 12, 20263 min read

These Lake Superior Rocks Look Ordinary by Day, Then Glow Like Lava After Dark

They sat hidden on the beaches for a billion years before a Yooper with a flashlight figured them out Walk a Lake...

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rockhounding

The latest rockhounding story

Michigan’s Official Gem Is Found Nowhere on Earth but the U.P., and Its Namesake Island Is Off-Limits

More rockhounding stories, newest first

The Rocks Yoopers Hunt on Lake Superior Beaches Are a Billion Years Old

These Lake Superior Rocks Look Ordinary by Day, Then Glow Like Lava After Dark