His magnum opus contains extensive details on surveying and smelting.  
org the Whiskered commissioned this man to write a history of Saxony that wasn't published until 1963 because it was too frank.  Contemporaries lauded his 1529 "Turkish Speech" urging Ferdinand I to fight the Ottomans.  During a trip to Italy, this man worked on an edition of Galen for the Aldine Press and met Erasmus.  This man researched his best known book after being elected physician of St. Joachimsthal and used that knowledge to invest handsomely in a scheme in Chemnitz.  He was probably the first German doctor to impose a quarantine.  In an illustration by Blasius Weffring in this man's best known text, a man operates treadles as one of three different ways to expel noxious vapors.  He distinguished between "simple" and "complex" substances in a treatise on what he called fossils.  His magnum opus contains extensive details on surveying and smelting.  For 10 points, name this "father of (*) mineralogy" and author of De re metallica.
org the Whiskered commissioned this man to write a history of Saxony that wasn't published until 1963 because it was too frank.  
Georgius Agricola [or Georg Pawer or Georg Bauer]