to discover a previously unknown type of rock?
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, photograph FACEBOOK/YOOPERLITES,
and here is the video if you want to try looking yourself.
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