Franz-Joseph Müller Freiherr von Reichenstein or Franz-Joseph Müller von Reichenstein (Hungarian: Müller F. József) was a Hungarian mineralogist who discovered Tellurium in 1782. General Name, Symbol, Number tellurium, Te, 52 Chemical series metalloids Group, Period, Block 16, 5, p Appearance silvery lustrous gray Atomic mass 127. ... 1782 was a common year starting on Tuesday (see link for calendar). ...

He was born on the July 1, 1740 Nagyszeben (Hermannstadt) Transylvania, or 4 October 1742 in Poysdorf, (Lower Austria), and died on the October 12, 1825 in Vienna. July 1 is the 182nd day of the year (183rd in leap years) in the Gregorian Calendar, with 183 days remaining. ... Events May 31 - Friedrich II comes to power in Prussia upon the death of his father, Friedrich Wilhelm I. October 20 - Maria Theresia of Austria inherits the Habsburg hereditary dominions (Austria, Bohemia, Hungary and present-day Belgium). ... County Sibiu County Status County capital Mayor Klaus Johannis, from the Democratic Forum of Germans of Romania, since 2000 Area 121 km² Population (2002) 171,535 Density 1,417 inh/km² Geographical coordinates Web site http://www. ... Map of Romania with Transylvania in yellow Transylvania (Romanian: or ; Hungarian: ; German: ; Serbian: / Transilvanija or / Erdelj) is a historical region in central and western Romania. ... October 4 is the 277th day of the year (278th in leap years) in the Gregorian Calendar. ... // Events January 24 - Charles VII Albert becomes Holy Roman Emperor. ... October 12 is the 285th day of the year in the Gregorian calendar (286th in leap years). ... Opening of the Stockton and Darlington Railway 1825 (MDCCCXXV) was a common year starting on Saturday (see link for calendar). ... Vienna (German: , see also other names) is the capital of Austria, and also one of the nine States of Austria. ...

He studied philosophy in Vienna but became a specialist in mineralogy. Vienna (German: , see also other names) is the capital of Austria, and also one of the nine States of Austria. ... Mineralogy is an earth science that involves the chemistry, crystal structure, and physical (including optical) properties of minerals. ...

In 1778 he discovered an occurrence of Tourmaline in the Zillertal. 1778 was a common year starting on Thursday (see link for calendar). ... The tourmaline mineral group is chemically one of the most complicated groups of silicate minerals. ... The Zillertal is a side valley of the Inn in Tyrol, Austria drained by the River Ziller. ...

In 1782 or 1783, as the main overseer of mines in Hungary, he analyzed a bluish gold ore from Transylvania known as 'German Gold'. He extracted a metal believing it to be antimony. Soon he verified that it was an unknown chemical element, however did not continue the research in relation to this new element. 1782 was a common year starting on Tuesday (see link for calendar). ... 1783 was a common year starting on Wednesday (see link for calendar). ... General Name, Symbol, Number antimony, Sb, 51 Chemical series metalloids Group, Period, Block 15, 5, p Appearance silvery lustrous grey Atomic mass 121. ...

In 1798, the German chemist Martin Heinrich Klaproth isolated the new element and it called it tellurium, but gave the credit of the discovery to the Baron. 1798 was a common year starting on Monday (see link for calendar). ... Martin Heinrich Klaproth Martin Heinrich Klaproth (December 1, 1743 – January 1, 1817) was a German chemist. ... General Name, Symbol, Number tellurium, Te, 52 Chemical series metalloids Group, Period, Block 16, 5, p Appearance silvery lustrous gray Atomic mass 127. ...

Notes

Note regarding personal names: Freiherr is a title, translated as Baron, not a first or middle name. The female forms are Freifrau and Freiin. Freiherr (German for Free Lord) is a title of lower nobility in Germany, the Baltic states and Austria-Hungary, considered equal to the title Baron. ... Baron is a specific title of nobility or a more generic feudal qualification. ... Freiherr (German for Free Lord) is a title of lower nobility in Germany, the Baltic states and Austria-Hungary, considered equal to the title Baron. ... Freiherr (German for Free Lord) is a title of lower nobility in Germany, the Baltic states and Austria-Hungary, considered equal to the title Baron. ...