The established textbook on mineralogy by Gregor Markl is an accessible introduction to the fundamentals of mineralogy, petrology, and geochemistry, primarily aimed at students of geosciences. It begins with a richly illustrated description of the most important minerals and rocks. The author then presents concepts and analytical methods of mineralogy and explains the formation and changes of metamorphic, magmatic, and sedimentary rocks. The chapter on geochemistry highlights the chemistry of the cosmos, the formation of elements, meteorites, and the composition of the main global reservoirs (Earth's core, mantle, crust, oceans, atmosphere). An important application of geochemistry is the measurement of trace element concentrations or stable and radiogenic isotopes in rocks to reconstruct geological processes. The textbook stands out for its...