Thread: Blue Sulphur
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Old 08-14-2019, 10:30 AM
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Pete VanderLaan Pete VanderLaan is offline
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Join Date: Apr 2002
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Oxblood is actually a very old name for a copper glass that hematonized and went to a livery opaque. The molecules just get too big and they reflect light instead of allowing transmission. The term is used in ceramics as well.
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