Whose younger brother accompanied the expedition that discovered Russia's first diamonds?
Adolphe de Polier Count Adolphe de Polier (1795 - 1830) was a French officer in the service of the Russian Imperial court from 1827, Chamberlain of Emperor Nicholas the Ist, he serves as vice-minister of Finance. Member of the Russian Academy of Science he organises scientific expeditions. During one of those in 1829 with Alexander von Humboldt, Polier discovered Russia's first diamonds. It was the first time Russia got an indication of its tremendous rich natural resources that drives today's Russian economy.
Thorolf Vogt Thorolf Vogt (7 June 18881958) was a Norwegian geologist and Arctic explorer. He was born in Vang, Hedmark, and was a brother of Fredrik Vogt. He was appointed professor of mineralogy and geology at the Norwegian Institute of Technology from 1929. He was in charge of scientific expeditions to Svalbard in the 1920s, and to Greenland in 1931.