The Corundum Stone and Crystallographic Chemistry

Ambix
Stephen T Irish

Abstract

This article presents a detailed history and exegesis of the 1798 paper of Charles Greville and Jacques-Louis Count de Bournon, "On the Corundum Stone from Asia." This was the first published argument to establish that the mineral corundum was related to, or identical with, the ruby and the sapphire. It was also the first time that the science of crystallography, recently developed in France, was publically introduced to a British scientific audience. René Just Haüy's theory of the three-dimensional structure of minerals proposed a new kind of extension of chemistry into the solid state. The story of corundum illustrates the new and sophisticated mineralogy that had emerged in the late eighteenth century and how an increasingly global natural history relied upon extended networks of trade and empire. It shows also how mineralogical debates had begun to move beyond the private and restricted milieux of mining schools and wealthy collectors and into more public scientific fora.

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