Spineh.e. 83 *s imbedded inadularia, and is accompanied with mag netic pyrites *. Geographic Situation. it is found in the kingdom of Pegu, and in the of Ceylon, accompanied with zircon, hyacinth, to urinaline, and ceylanite. Bourncn. life. it is employed as a precious ft one, and is of con- iidetable value, but it has neither the hardnefs nor the fite of the oriental ruby. Olfervation. _ tty™ I 1 "When fpinelle and oriental ruby of the fame colour are cut, we can diftinguifh them from each other by luperior hardnefs, and greater fpecific gravity of latter, * The reader is referred to Count de Eournon’s very excel- ct >t Memoir on Corundum for a more particular account of thcfi* P^itnens, TWELFTH