Ibn Rassam
From Infogalactic: the planetary knowledge core
Ibn al-Rassam (literally Son of the Draftsman) was an Egyptian Muslim Alchemist and tile-maker and Mosaic designer, who flourished during the Mamluk Bahri dynasty (1250–1382).[1]
Ibn Rassam is widely known to have invented the techniques through which he obtained copper from varieties of malachite, he also ascertained indigo by heating various substances.[2] He was also a colleague of the chemist, Abul Ashba ibn Tammam (d.1361).
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