Submit your own Neatorama post and vote for others' posts to earn NeatoPoints that you can redeem for T-shirts, hoodies and more over at the NeatoShop!


Why Yooperlite Rocks Glow

Erik Rintamaki of Michigan is an avid rock collector. While searching for agates along Lake Michigan in 2017, he found stones that glowed under ultraviolet light. This is how he discovered a previously unknown mineral: yooperlight.

The name comes from the word "yooper" -- someone who lives on the Upper Peninsula of Michigan. Rintamaki has trademarked that name. The scientific term is "cyenite clasts containing fluorescent sodalite." These stones were brought to Michigan from Ontario by glaciers thousands of years ago. You can learn more about yooperlites in this video by Wonder World.


Newest 1
Newest 1 Comment

Login to comment.

Email This Post to a Friend
"Why Yooperlite Rocks Glow"

Separate multiple emails with a comma. Limit 5.


Success! Your email has been sent!

close window

This website uses cookies.

This website uses cookies to improve user experience. By using this website you consent to all cookies in accordance with our Privacy Policy.

I agree
Learn More