Colombia also produces copper, small amounts of iron ore, and bauxite. Nonmetallic mined minerals include salt, limestone, sulfur, gypsum, dolomite, barite, feldspar, clay, magnetite, mica, talcum, and marble. Colombia also produces most of the world’s emeralds.

How To Find Silver Veins In Abandoned Mines

There is still silver in abandoned silver mines and I show you how to find veins with a metal detector and clean the finds in a rock …

Leave a Reply