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Nils Gabriel Sefström (2 June 1787 – 30 November 1845) was a Swedish chemist.Sefström was a student of Berzelius and, when studying the brittleness of steel in 1830, he rediscovered a new chemical element, to which he gave the name vanadium.
The Georgia Gold Rush was the second significant gold rush in the United States and the first in Georgia, and overshadowed the previous rush in North Carolina. It started in 1829 in present-day Lumpkin County near the county seat, Dahlonega, and soon spread through the North Georgia mountains, following the Georgia Gold Belt. By the early 1840s ...
Discovery: Andrés Manuel del Río [8] (1801) First isolation: Henry Enfield Roscoe (1867) ... Vanadium is a chemical element; it has symbol V and atomic number 23.
Prepared and isolated from urine, it was the first element whose discovery date and discoverer are recorded. [53] Its name first appears in print in the work of Georg Kaspar Kirchmayer in 1676. Recognised as an element by Lavoisier. [1] 1 Hydrogen: 1671 R. Boyle: 1671 R. Boyle Robert Boyle produced it by reacting iron filings with dilute acid.
The vanadium occurred in an 11-foot-thick (3.4 m) bed in the Meade Peak shale member of the Phosphoria, immediately below a 15-foot (4.6 m) bed of ore-grade phosphate rock. [22] The property has since been sold to Stonegate Agricom, and as of mid-2016 was still in permitting and development status. [23]
The historic cities of Auraria and Dahlonega were the primary beneficiaries of the gold discovery, and a branch mint of the United States Mint was operated in Dahlonega until 1861. The Georgia Gold Belt is part of a zone of gold deposits in the southeast United States that runs from Alabama to Virginia. Smaller gold deposits can be found ...
A century of Georgia Agriculture, 1850–1950 (1954) Steely, Mel. The Gentleman from Georgia: The Biography of Newt Gingrich Mercer University Press, 2000. ISBN 0-86554-671-1. Tuck, Stephen G. N. Beyond Atlanta: The Struggle for Racial Equality in Georgia, 1940–1980. University of Georgia Press, 2001. ISBN 0-8203-2265-2.
William Gregor (25 December 1761 – 11 June 1817), discovery of titanium (1791). Martin Heinrich Klaproth (1 December 1743 – 1 January 1817), discovery of uranium (1789), zirconium (1789); establishment of tellurium, strontium, cerium and chromium.