The Luc Yen ruby and spinel deposits occur in the Lo Gam zone, in a thick metasedimentary sequence of Cambrian age, composed of marble and overlying sillimanite-biotite-garnet schist ... in the Bai ...

Pharmaceutical giant Eli Lilly is the world's most valuable drug company. A chemist and veteran of the Union Army founded the company in 1876, and it later became the first to mass-produce insulin ...