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September 24, 2020 01:20 pm GMT
Original Link: https://boingboing.net/2020/09/24/these-fluorescent-rocks-abound-on-the-shores-of-lake-superior.html
These fluorescent rocks abound on the shores of Lake Superior
Certain forms of the igneous rock syenite are nicknamed emberlite because they contain sodalite, causing them to fluoresce under black light. Glaciers deposited lots of them in the Lake Superior basin, where rock hunters go out at night to find them.… Read the rest
Original Link: https://boingboing.net/2020/09/24/these-fluorescent-rocks-abound-on-the-shores-of-lake-superior.html
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