Yogo Sapphire - Montana's "Goldilocks" Gem Yellow, pink, green, and purple corundum specimens are all sapphire (red corundum is called ruby), but the most valued varieties are deep blue. Gem dealers seek cornflower blue, nearly a reflection of Montana’s Big Sky.
Arts & Culture Last Best Books Spring '26: "Counsel of the Years," "Marcus Daly's Montana Empires," and "Westward and Miserable"
