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Table 1 Mercury concentrations and mineral compositions of the raw samples and fractions

From: Assessment of mercury pollution sources in beach sand and coastal soil by speciation analysis

Sample Fraction (µm) % wt Hg (µg g−1) Mineral
Fraction Raw sample
A1 800–224 31 0.16 10.9 Quartz (SiO2) fluorite (CaF2), calcite (CaCO3)
224–125 67 14.0
< 125 2 16.6
A2 800–224 23 0.44 5.01 Quartz, fluorite, calcite, barite (BaSO4)
224–125 76 3.37
< 125 1 20.5
S1 800–224 30 8.96 23.1 Quartz, fluorite, calcite, barite
224–125 68 28.2
< 125 2 31.6