Montana
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Montana is unique among sapphire sources for producing distinctive teal, blue-green, and bi-color sapphires that have become highly sought after in modern jewelry design. The state's main deposits include the Missouri River near Helena, Yogo Gulch, Rock Creek, and Dry Cottonwood Creek. Yogo sapphires are particularly notable for their consistent cornflower blue color that requires no heat treatment, a rarity in the sapphire world.
히스토리
몬태나에서 사파이어가 처음 발견된 것은 1860년대 골드 러시 시대로, 당시에는 가치 없는 파란 자갈로 버려졌습니다. 1895년 요고 광상이 확인된 후 티파니의 보석학자 조지 프레더릭 쿤즈가 이를 미국에서 발견된 최고의 사파이어라고 선언했습니다.
Notable Gems
Sapphire