In this groundbreaking work, renowned geologist and mining expert Robert Thomas Hill provides a detailed analysis of the Pinguico Mines in Guanajuato, Mexico. Covering everything from the geological features of the area to the metallurgical processes used on site, Hill's reports...
In this groundbreaking work, renowned geologist and mining expert Robert Thomas Hill provides a detailed analysis of the Pinguico Mines in Guanajuato, Mexico. Covering everything from the geological features of the area to the metallurgical processes used on site, Hill's reports...