Ibn Umail describes a statue of a sage holding the tablet of ancient alchemical knowledge. Illustration from a transcript of Muhammed ibn Umail al-Tamimi's book Al-mâ' al-waraqî (The Silvery Water), Islamic miniature probably from Baghdad, 608H/1211. Alchemy in the medieval Islamic world refers to both traditional alchemy and early practical chemistry (the early chemical investigation of nature in
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