Daily Quiz for June 22, 2008

Sapphires. While searching for gold in Montana’s Yogo Gulch in 1895, Jake Hoover found sapphires. Hoover found little gold in the Yogo Creek and Gulch, however, the small, translucent blue pebbles that frequently cluttered the riffles of his sluice box turned out to be gem-quality sapphires. From 1898 to 1923, the Yogo Dike yielded 16 million carats of sapphire-2.4 million carats of gem quality.