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Brand kept his discovery secret, as alchemists of the time did, and worked with the phosphorus trying unsuccessfully to use it to produce gold. His recipe was: [5] Let urine stand for days until it gives off a pungent smell. [4] (This step was not necessary, as later scientists discovered that fresh urine yielded the same amount of phosphorus). [6]
The Quimbaya Poporo, gold, attributed to the pre-Columbian Quimbaya civilization in the Andean region of present-day Colombia, ca. 300 CE. A Poporo is a device used by indigenous cultures in present and pre-Columbian South America for storage of small amounts of lime produced from burnt and crushed sea-shells.
Small amounts of natural gold have been found in Spanish caves used during the late Paleolithic period, c. 40000 BC. [1] The earliest gold artifacts dating to 4600 BC to 4200 BC were discovered at the site of Varna Necropolis, Bulgaria. [2] Recognised as an element by Guyton de Morveau, Lavoisier, Berthollet, and Fourcroy in 1787. [3] 6 Carbon
Map of pre-Columbian cultures Poporo Quimbaya in the Gold Museum, Bogotá Colombia Seated gold figure from the Museo de América (Museum of America). Quimbaya artifacts refer to a range of primarily ceramic and gold objects surviving from the Quimbaya civilisation, one of many pre-Columbian cultures of Colombia inhabiting the Middle Cauca River valley and southern Antioquian region of modern ...
Similar metal artifact types are found in West Mexico and the two regions: copper rings, needles, and tweezers being fabricated in the same ways as in Ecuador and also found in similar archaeological contexts. A multitude of bells were also found, but in this case they were cast using the same lost-wax casting method as seen in Colombia. [40]
Prospector Robert Henderson who had been mining gold on the Indian River, just south of the Klondike, suggested that he should try out Rabbit Creek, now Bonanza Creek, where the gold discovery was made. The finding of gold made him wealthy and the Carmacks moved to a ranch near Modesto, California and lived with Carmack's sister, Mrs. Hannah ...
The earliest gold artifacts were discovered at the site of Wadi Qana in the Levant. [13] Silver is estimated to have been discovered in Asia Minor shortly after copper and gold. [14] There is evidence that iron was known from before 5000 BC. [15] The oldest known iron objects used by humans are some beads of meteoric iron, made in Egypt in ...
Felix Pedro's discovery of gold here in 1902 began the Alaskan gold rush. Felix Pedro discovered gold in the Tanana Hills northeast of Fairbanks on or about July 22, 1902 [6] in a small unnamed stream (now known as "Pedro Creek") northeast of Fairbanks, prompting him to exclaim "There's gold in them there hills", and triggering a full-scale ...