gems general

Kunz highlights the mining of tourmaline, turquoise, diamonds, sapphires, garnets, and opals in various locations across the United States, including Maine, New Mexico, Colorado, Wisconsin, Montana, Arizona, Kentucky, and Washington. Production Values: The document provides detailed tables listing the production values of different precious stones for the years 1884, 1885, 1889, and 1890. ​ For example, the production value of sapphires in 1890 was $6,725, while garnets had a production value of $2,308. ​Mining Locations: Specific mining locations mentioned include Mount Mica in Maine, Castilian mine in New Mexico, Plum Creek in Wisconsin, and sapphire locality near Helena, Montana.