Georg Brandt (26 June 1694 – 29 April 1768) was a Swedish chemist and mineralogist who discovered cobalt (c.1735).
He was the first person to discover a metal unknown in ancient times.
Brandt was born in Riddarhyttan, Skinnskatteberg parish, Västmanland to Jurgen Brandt, a mineowner and pharmacist, and Katarina Ysing.
He was professor of chemistry at Uppsala University, and died in Stockholm.
He was able to show that cobalt was the source of the blue color in glass, which previously had been attributed to the bismuth found with cobalt.
He died on April 29, 1768 of prostate cancer.
About 1741 he wrote: "As there are six kinds of metals, so I have also shown with reliable experiments... that there are also six kinds of half-metals: a new half-metal, namely Cobalt regulus in addition to Mercury, Bismuth, Zinc, and the reguluses of Antimony and Arsenic".
He gave six ways to distinguish bismuth and cobalt which were typically found in the same ores.
Source: Link
1564 - 1616
1803 – 1882
1854 – 1900
1942 – 2016
1928 – 2014
1835 – 1910
1869 – 1948
1884 – 1962
1898 – 1963
1929 – 1993
1879 – 1955
1809 – 1865
1807 – 1870
1800 – 1859
1795 – 1821
1755 – 1793
1984 -
1989 – 2011
1943 – 2001
1815 – 1902
1929 – 1994
1767 – 1848