corundum, sapphire, Montana.12, USA.12, gems

Sinkankas: Descriptive Statement of the Great Emerald Bar Placer Mining Claims, situated about sixteen miles east of Helena, on the Missouri River at Canon Ferry, Lewis and Clark County, Montana, details a mining property that attracted notable attention. The property was examined by Edward W. Streeter, a gem merchant of London, and George F. Kunz, the renowned gemologist, whose assessments are included alongside testimonials from J. H. Pratt, A. H. Church, and others who were called upon to identify the stones. These endorsements lend significant weight to the document, which serves both as a geological description and a promotional piece for potential investors or interested parties.