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Old 11-26-2019, 08:44 AM
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Ed Pennebaker Ed Pennebaker is offline
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Join Date: Apr 2002
Location: Red Fern Glass near Green Forest, AR
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second batch

The second batch does have better color I think, the photo make it look a little more red than it actually is. But it has some deep maroon, purple and blue. Decreased silver by 2 grams, added 60 gm black copper, melted hotter. It does strike some color in the annealer. The best color pieces are put in early in the day at the back of the annealer. I had to make a batch of cobalt between the two batches of Chalcedony so there was some extra cobalt also. Early checks on melt progress without reheating the glass looked like a light cobalt I usually make with 3 grams of cobalt in 100 lb of SP87 plain batch. It is still very dark amber in transmitted light.
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