New Mexico Mineral Symposium — Abstracts

Mining in the Boleo district, near the town of Santa Rosalia, Baja California Sur, began in 1886 by a French company and continued until 1947. Subsequent to that small scale, miners continued until the mid-1970s. A modern development by both underground and surface mining is being undertaken by Baja Mining, a Canadian company. At present, development is on hold due to low copper prices.

The author and his wife have been returning at least twice a year for the past four years. We have encouraged and helped a local miner to re-enter the Amelia mine to collect boleite, pseudoboleite, and cumengeite. We have also found a rich outcrop of chrysocolla with interesting pseudomorphs south of the Amelia mine and along the same #3 ore horizon.