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
You Can't Always Get What You Want You Can't Always Get What You Want "You Can't Always Get What You Want" is a song by the Rolling Stones on their 1969 album "Let It Bleed". Written by Mick Jagger and Keith Richards, it was named as the 100th greatest song of all time by "Rolling Stone" magazine in its 2004 list of the "500 Greatest Songs of All Time". Jagger commented on the song's beginnings: "You Can't Always Get What You Want" was the first song recorded for the album. It exists in two versions, a 5:00 single mix and a 7:28 album mix. "You Can't Always