Glauchau in the context of Zwickau (district)

Georgius Agricola (/əˈɡrɪkələ/; born Georg Bauer; 24 March 1494 – 21 November 1555) was a German Humanist scholar, mineralogist and metallurgist. Born in the small town of Glauchau, in the Electorate of Saxony of the Holy Roman Empire, he was broadly educated, but took a particular interest in the mining and refining of metals. He was the first to drop the Arabic definite article al-, exclusively writing chymia and chymista in describing activity that we today would characterize as chemical or alchemical, giving chemistry its modern name. For his groundbreaking work De Natura Fossilium published in 1546, he is generally referred to as the father of mineralogy and the founder of geology as a scientific discipline.

He is well known for his pioneering work De re metallica libri XII, that was published in 1556, one year after his death. This 12-chapter work is a comprehensive and systematic study, classification and methodical guide on all available factual and practical aspects, that are of concern for mining, the mining sciences and metallurgy, investigated and researched in its natural environment by means of direct observation. Unrivalled in its complexity and accuracy, it served as the standard reference work for two centuries. Agricola stated in the preface, that he will exclude "all those things which I have not myself seen, or have not read or heard of". He continued, "That which I have neither seen, nor carefully considered after reading or hearing of, I have not written about."

The Zwickauer Mulde (German pronunciation: [ˈtsvɪkaʊɐ ˈmʊldə]) is a river in Saxony, Germany. It is the left tributary of the Mulde and 166 km (103 mi) in length.

The source of the river is in the Ore Mountains, near Schöneck, in the Vogtlandkreis. It runs northeast to Aue, then northwest to Zwickau (hence the name), and further north through Glauchau, Rochlitz and Colditz. A few kilometers north of Colditz, the Zwickauer Mulde is joined by the Freiberger Mulde to form the united Mulde. The Mulde is a tributary of the Elbe.