Amalgam (chemistry) copper trough, which formed a thin coating of mercury on the exterior. The waste ore was then transferred down the trough, and gold in the waste amalgamated with the mercury. This coating would then be scraped off and refined by evaporation to get rid of the mercury, leaving behind somewhat high-purity gold. Mercury amalgamation was first used on silver ores with the development of the patio process in Mexico in 1557. There were also additional amalgamation processes that were created for processing silver ores, including pan amalgamation and the Washoe process. Gold amalgam has proved effective where gold fines ("flour
What They Always Tell Us What They Always Tell Us What They Always Tell Us is the first novel by Martin Wilson, focusing on the relationship between two high school age brothers as one begins to embrace his homosexuality. The book was a finalist in the Children's/Young Adult category at the 2009 Lambda Literary Awards, but lost to "Out of the Pocket" by Bill Konigsberg. "What They Always Tell Us" was also chosen for the ALA's 2009 Rainbow List. "What They Always Tell Us" is told from the perspective of two brothers, Alex and James. Alex is a high school junior who struggles with depression;