Citation: Merlino, S.; Pasero, M.; Perchiazzi, N.; Kampf, A. R. (1996). Laurelite: Its crystal structure and relationship to alpha-PbF2 Note: Re-examination of the crystal by H Yang and A Kampf showed that it was twinned, and the partially occupied sites were relicts.. American Mineralogist, 81, pp. 1277-1281.