Kitāb al-Kīmyāʼ is an important work of alchemy by Jābir ibn Hayyān (Geber), written sometime in the late 8th century. Originally written in Arabic, it was translated into Latin and various European languages. It was translated in 1144 by Robert of Chester

Robert of Chester

Robert of Chester was an English arabist of the 12th century. He translated several historically important books from Arabic to Latin, by authors such as Abu Musa Jabir Ibn Hayyan and Al-Khwarizmi including:...

 as "The Book of the Composition of Alchemy". It was the most influential of Geber's books in the West. The book, along with his Kitab al-Sab'een, has been described as being "popular in Europe for several centuries" and influencing the evolution of chemistry.