Amalgam (chemistry) gold") would not be extractable from ore using hydro-mechanical methods. Large amounts of mercury were used in "placer mining", where deposits composed largely of decomposed granite slurry were separated in long runs of "riffle boxes", with mercury dumped in at the head of the run. The amalgam formed is a heavy solid mass of dull gray color. (The use of mercury in 19th century placer mining in California, now prohibited, has caused extensive pollution problems in riverine and estuarine environments, ongoing to this day.) Sometimes substantial slugs of amalgam are found in downstream river and creek bottoms by amateur wet-suited
Amalgam Digital Amalgam Digital Amalgam Digital is an independent record label based in East Boston, Massachusetts. Founded in 2006 by Anyextee, the privately owned label had been home to a variety of artists throughout the decade before significantly downsizing in its later years. The label's online store was the first genre-specific digital download store specializing in hip hop music. It focuses on independent labels and artists through the implementation of a new user-generated content module that allowed artists to upload content directly to the site for immediate purchase. Amalgam Digital also houses an exclusive independent record label by the same name, specializing