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Old 10-09-2019, 09:00 AM
Pete VanderLaan's Avatar
Pete VanderLaan Pete VanderLaan is offline
The Old Gaffer
Join Date: Apr 2002
Location: Chocorua New Hampshire
Posts: 22,177
Pete VanderLaan is on a distinguished road
That sort of thing gets interesting when one cools down the glass. It will frequently crystalize below 2000F but then become glassy again when heated. I've seen such stuff also cystalize when rolled from hot onto a marver.

The best question is however "How was the color? Was it worth the extra 2%?
Where are we going and why am I in this basket?
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