I am relying here on two papers whose authors include six geologists. The first of the two papers is Shimon Ilani, Amnon Rosenfeld and Michael Dvorachek, “Archaeometry of a Stone Tablet with Hebrew Inscription Referring to Repair of the House,” GSI Current Research 13 (2002). The second paper is S. Ilani, A. Rosenfeld, H.R. Feldman, W.E. Krumbein and J. Kronfeld, “Archaeometric Analysis of the ‘Jehoash Inscription’ Tablet,” Journal of Archaeological Science 35 (2008), p. 113.