TY - JOUR T1 - Description of the Corundum Stone, and Its Varieties, Commonly Known by the Names of Oriental Ruby, Sapphire, &c.; with Observations on Some Other Mineral Substances JF - Philosophical Transactions of the Royal Society of London (1776-1886) VL - 92 SP - 233 EP - 326 PY - 1802/01/01/ UR - http://dx.doi.org/10.1098/rstl.1802.0011 M3 - doi:10.1098/rstl.1802.0011 AU - de Bournon, C. ER -