Copper, gold, mercury

Metals of the land. 19 points on the WW9 Atlas, oldest first, each with its source.

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• Lake Superior copper (Old Copper)-6500Record: copper worked about 8,500 years ago (Pompeani 2021). P765.
• Qin Shi Huang's tomb (mercury rivers)-210Record: Sima Qian's rivers of mercury moved by machinery; mercury vapor measured 2020. P764.
• Teotihuacan mercury chamber200Record: liquid mercury deep under the Feathered Serpent temple (INAH 2015). P756.
• Minas Gerais gold (Ouro Preto)1693Record: gold rush worked by African captives from West and West-Central Africa. P765.
• Jáchymov pitchblende1898Record: the ore the Curies isolated radium from (1898). P757.
• Paradox Valley / Uravan carnotite (Ute homelands)1912Record: US radium ore (about 1913–22, verify). P763.
• Glenpool oil (Sarah Rector's allotment)1913Record: Creek Freedman's 'worthless' land gushed oil; forced white guardian. P766.
• Hartford mercury-vapor turbine1922Record: mercury-vapor power plant (to 15 MW). P763.
• Olen radium refinery (Belgium)1922Record: first industrial radium plant, refining Congo ore. P763.
• Shinkolobwe mine, Congo1922Record: radium from 1922 and most Manhattan Project uranium (1,500 t sold 1942). P763.
• Délı̨nę ('Village of Widows')1932Record: Dene ore carriers; prophecy of Louis Ayah; delegation to Hiroshima 1998. P761, P763.
• Port Radium, Great Bear Lake (Sahtu Dene land)1932Record: Eldorado mine; radium about $40,000 a gram; discovery 'claimed by' LaBine. P763.
• Schiller Station mercury turbine1950Record: 40 MW mercury-vapor plant. P763.
• Church Rock spill1979Record: 93 million gallons of radioactive water into the Rio Puerco; 46 curies. P761.
• Coronation Hill (Guratba)1991Record: Jawoyn elders said mining would disturb Bula; mine stopped 1991. P761.
• Hot Springs, ArkansasRecord: 47 thermal springs, radioactive (radon); 'neutral ground' story Disputed. P761.
• Katanga copper (Kipushi)Record: copper worked for centuries; copper crosses used as money. P765.
• Lamanai mercury offeringRecord: a pool of liquid mercury in a Maya offering (Pendergast, Science 1982). P756.
• Oklo natural reactorsRecord: natural fission about 2 billion years ago (found 1972). P758.