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Table 2 Elemental composition (%) of the quartz, Na-feldspar, K-feldspar, Ca-feldspar, hornblende, actinolite, augite, orthopyroxene, biotite and epidote samples

From: The importance of mineralogical composition for the cytotoxic and pro-inflammatory effects of mineral dust

  Quartz Na-feldspar K-feldspar Ca-feldspar Hornblende Actinolite Augite Orthopyroxene Biotite Epidote
SiO2 98.6 66.5 65.2 48.5 45.0 55.8 56.7 49.1 34.2 37.5
Al2O3 0.025 19.5 18.7 32.2 9.1 0.557 0.935 8.05 19.1 22.6
Fe2O3 0.019 0.176 0.121 0.259 14.5 8.23 6.96 17.1 25.2 13.8
TiO2 0.011 0.012 0.026 0.099 0.031 0.232 0.731 2.53 0.092
MgO 0.11 0.067 12.2 20.0 13.6 20.4 4.54 0.092
CaO 1.69 0.358 14.5 10.8 12.6 18.2 3.02 0.671 22.6
Na2O 7.04 2.57 2.51 1.75 0.15 0.94 0.34 0.3
K2O 0.013 3.96 12.3 0.258 1.34 0.039 0.072 0.126 8.24 0.025
MnO 0.071 0.108 0.067 0.235 0.348 0.195
P2O5 0.017 0.023 0.013 0.014 0.017 0.012 0.016 0.603 0.011
BaO 0.026 0.012
Co2O3 0.012
Cr2O3      0.062 0.012 0.019
CuO
NiO 0.024
PbO 0.009
SrO 0.007 0.007 0.025 0.006 0.007   0.086
V2O3   0.026 0.035 0.017 0.077
ZnO 0.017 0.161
ZrO2 0.013 0.015 0.128