Gold Refinery of San Diego 5859 Mission Gorge Road, San Diego, CA 92120 Walk-in's are welcome. Mon-Fri: 9:00AM-5:00PM Our gold buying office is centrally located in San Diego for your convenience. We want your 'cash for gold' experience to be convenient and safe. As such we do ...
Gold is a chemical element; it has symbol Au (from Latin aurum 'gold') and atomic number 79. It is a bright, slightly orange-yellow, dense, soft, malleable, and ductile metal in pure form. Chemically, gold is a transition metal and a group 11 element. It is one of the least reacti...
Although mercury (Hg) is highly toxic [1], it is used in artisanal small-scale gold mining (ASGM) to extract gold from ore. This is currently the main global source of anthropogenic mercury emissions [2] and affects both the environment and human health [3]. Due to the informal character...