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?

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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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