Iron and argentiferous lead are mined in small quantities and other ores have been discovered.
The gold of Mexico is chiefly found in argentiferous veins, as at Guanaxuato, where it is obtained one ounce in 360.
The ores are argentiferous galena, accompanied by considerable amounts of blende and pyrites, all oxidized near the surface.
There at present nothing is talked of but copper mines and silver or argentiferous copper ores.
The yield of the argentiferous and cupriferous ores, proved, alas!
The argentiferous galena has in general all the external characters of pure galena.
argentiferous lead ores form one of the principal sources of silver, and also yield some gold.
There are mines of chrome, mercury, cinnabar, argentiferous lead and rock salt.
Formerly all argentiferous lead had to be cupelled, and the resulting litharge then reduced to metallic lead.
Lead ores (chiefly argentiferous galena) and building stone are found, and iron ore is distributed over the hilly country.