Sapphires ayaa markii ugu horreysay la helay bartamihii qarnigii 19-aad sahamiyayaal dahab ah oo dahab ka raadinayay webiga Montana.
Taariikh ahaan, macdanta sapphire-ka ganacsiga ayaa laga fuliyay afar goobood oo muhiim ah oo ku yaal koonfur-galbeed Montana, Pebble Belt (1865), Qalalan Cotton Creek (1889), Rock Creek (1892) iyo Yokogarsh (1895).Webiga Missouri ee sare) waxa laga soo ururiyey afartan kayd Laba goobood oo sapphire ah oo keliya ayaa weli soo saara safayr.Hoos waxaa ah kiristaalo qalafsan oo cagaar iyo buluug ah iyo safayr weji leh oo laga soo xulay kaydadka Creek.
Waqtiga boostada: Abriil-19-2022