Michigan's Billion-Year-Old Glowing Rocks | "Yooper" Stones

The rocky beaches around Lake Superior are famous for their glowing Yooper stones (or emberlite, glowdalite, or Yooperlite® when they're sold by a specific business). But where did they come from, and what makes them glow? I met up with an expert to learn more. Get 10% off at 41 North Co. with code "AlexisDahl10": https://bit.ly/3Dye39b If you're interested in buying one of John's flashlights, I think they're great. He sells them to the folks in this Facebook community: https://www.facebook.com/groups/23535... 🎉 The thank-you section: Many special thanks to John Dean for taking me sodalite hunting in the Keweenaw Peninsula, and for sharing all of his stories! Additional thanks to Dr. Laurel Woodruff, who reviewed the section on the Coldwell Complex for accuracy. And of course, my deepest gratitude to Sam and Chris for making this video possible. ✨ Want to support my work? Well, hey, thank you so much. You can learn more about how to keep this thing going at   / alexisdahl  . ☕ Find this series valuable, but Patreon isn't for you? You can also help keep this thing going at http://www.buymeacoffee.com/alexisdahl. Find Me Elsewhere: • Find stickers, hats, and other merchandise related to these videos: http://www.alexisdahl.com/store • Want to get semi-monthly e-mails about my latest videos and other happenings? You can sign up here: http://www.alexisdahl.com/newsletter • Want to work together or learn more about my work? Contact me at http://www.alexisdahl.com/ • On Instagram, I upload nature photos, plus odds and ends:   / alexis.writes