Supplementary figures and geochemical dataset supporting the manuscript of Narduzzi et al. "Strengths and weaknesses of the analytical techniques used for measuring low mercury concentrations (< 10 ng g-1) in crystalline rocks: Direct Mercury Analyzer versus Cold-Vapour-Atomic-Fluorescence-Spectroscopy"

Data uploaded here are: World file with supplementary figures supporting the main text Supplementary Table S1: review of the Hg elemental concentrations of different crystalline rocks analysed by different techniques, Supplementary Table S2: Direct Mercury Analyzer (DMA-80) Hg analyses on different crystalline rocks and reference materials  Supplementary Table S3: Cold-Vapour Atomic-Fluorescence Spectroscopy Hg analyses (Table S2 and S3) on different crystalline rocks and reference materials