what is this red beach glass with pyramidal triangles, glows?

by Mel
(Illinois)

glows under UV

glows under UV

Found along Lake Michigan in Chicago.

Any idea what it is from?

Is it safe?!

Very pretty.

Comments for what is this red beach glass with pyramidal triangles, glows?

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May 20, 2018
 Red seaglass
by: Jessica

I found this little beauty on a day I called out of work!! I’m so glad I did!!!!
IMG_6300.HEIC
Nov 23, 2017
 Brake Light
by: Donna

Hello, I have found a few pieces like that, and I was told that it came from an old brake light off a car. Hope this helps.
Nov 23, 2017
 Cars tail light.
by: Clayton

Cars tail light.
Nov 22, 2017
 Automotive
by: Tiki

I have found pieces similar to this. I believe it's decades-old automotive glass used for tail lights.

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