How Agates Form, Why Minnesota Lakes Have So Many, & Where To...

kottke.org September 17, 2025 By Jason Kottke
How Agates Form, Why Minnesota Lakes Have So Many, & Where To Look For Them. I was always excited as a kid to go find agates at the lake (typically Lake Superior), but I didn’t know a) how they formed, or b) that you couldn’t find them just anywhere.

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How Agates Form, Why Minnesota Lakes Have So Many, & Where To Look For Them. I was always excited as a kid to go find agates at the lake (typically Lake Superior), but I didn’t know a) how they formed, or b) that you couldn’t find them just anywhere.

💬 Join the discussion on kottke.org

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Published on September 17, 2025 by Jason Kottke

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