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sotpmoke t1_it9e2ep wrote on October 21, 2022 at 10:05 PM

Reply to comment by Domeroni in Researchers look to unravel story of Islamic glass found in Scottish castle - HeritageDaily - Archaeology News by GullyShotta

Its impure and cloudy because casting was done at lower temps. Technology wasn’t that good yet unless you had enough money to get the fire hot enough.