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Old 10-09-2019, 09:00 AM
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Pete VanderLaan Pete VanderLaan is offline
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Join Date: Apr 2002
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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%?
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