BERLIN (Reuters) -Vulcan Energy Resources opened at 5.65 euros ($6.40) per share on the Frankfurt Stock Exchange on Tuesday, the first day of the German-Australian company’s dual listing. Australian-listed shares in Vulcan closed 0.79% higher on Tuesday at A$8.91 ($6.36). The company, which is developing geothermal energy and lithium extraction projects in Germany with commercial production expected to start in 2024, is also listed on Australia’s Stock Exchange. Co-founded in 2018 under the name Koppar Resources Ltd and renamed the following year, Vulcan Energy has signed contracts with automa…