Fragmented sea glass?

by Judy H
(Visalia, Ca)

Can someone tell me why this is fragmented inside?

Can someone tell me why this is fragmented inside?

I found this brown piece at the tide line in Cayucos Ca this past week.

Can anyone tell me why it looks so fragmented when exposed to the light?

Comments for Fragmented sea glass?

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Jun 07, 2016
Fragmented or fractured inside
by: David & Lin @ OdysseySeaGlass

This happens when glass has been superheated in a bonfire and then had water thrown on the bonfire.

The rapid cooling shrinks the glass and causes fracturing.

See also: Bonfire Bottle Neck and Campfire Glass

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