 The work contains, in an appendix, the German equivalents for the technical terms used in the Latin text.Modern words that derive from the work include fluorspar (from which was later named fluorine) and bismuth.In another example, believing the black rock of the Schloßberg at Stolpen to be the same as Pliny the Elder's basalt, Agricola applied this name to it, and thus originated a petrological term.