From analysis to interpretation. A comment on the paper by Rasmussen et al. (2012)

The paper “The constituents of the ink from a Qumran inkwell: New prospects for provenancing the ink on the Dead Sea Scrolls” by Rasmussen et al. (2012) presents an account of the analysis of a residue from an unprovenanced inkwell. In this comment, I reassess their study and offer alternative interpretations of their experimental results.